{"id":56144,"date":"2026-06-15T15:30:54","date_gmt":"2026-06-15T15:30:54","guid":{"rendered":"https:\/\/xtmim.com\/?page_id=56144"},"modified":"2026-06-15T15:30:56","modified_gmt":"2026-06-15T15:30:56","slug":"304-vs-316l-stainless-steel","status":"publish","type":"page","link":"https:\/\/xtmim.com\/pt-br\/mim-materials\/compare\/304-vs-316l-stainless-steel\/","title":{"rendered":"A\u00e7o Inoxid\u00e1vel 304 vs 316L"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"56144\" class=\"elementor elementor-56144\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f77e4e9 e-con-full e-flex cmsmasters-bg-hide-none cmsmasters-bg-hide-none cmsmasters-block-default e-con e-parent\" data-id=\"f77e4e9\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-48f043d e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"48f043d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6408099 cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-heading\" data-id=\"6408099\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">304 vs 316L Stainless Steel for MIM Parts<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a2ac757 e-con-full e-flex cmsmasters-block-default e-con e-parent\" data-id=\"a2ac757\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-419a2d2 e-flex e-con-boxed cmsmasters-block-default e-con e-child\" data-id=\"419a2d2\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b4aa25d cmsmasters-block-default cmsmasters-sticky-default elementor-widget elementor-widget-html\" data-id=\"b4aa25d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>\r\n.xtmim-304-316l-page {\r\n  --xt-primary: #174a7c;\r\n  --xt-primary-dark: #0f3154;\r\n  --xt-accent: #2f7fbf;\r\n  --xt-bg: #f5f8fb;\r\n  --xt-card: #ffffff;\r\n  --xt-soft: #eef4f8;\r\n  --xt-border: #d9e3ec;\r\n  --xt-text: #1f2933;\r\n  --xt-muted: #5d6b7a;\r\n  --xt-heading: #132b3f;\r\n  --xt-radius-lg: 22px;\r\n  --xt-radius-md: 16px;\r\n  --xt-shadow: 0 12px 34px rgba(15, 49, 84, 0.09);\r\n  --xt-container: 1600px;\r\n  width: 100%;\r\n  box-sizing: border-box;\r\n  overflow: visible;\r\n  font-family: inherit;\r\n  color: var(--xt-text);\r\n  background: #ffffff;\r\n  font-size: 16px;\r\n  line-height: 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{\r\n    padding: 20px;\r\n  }\r\n\r\n  .xtmim-304-316l-page .xtmim-hero-actions,\r\n  .xtmim-304-316l-page .xtmim-cta-actions {\r\n    flex-direction: column;\r\n  }\r\n\r\n  .xtmim-304-316l-page .xtmim-btn {\r\n    width: 100%;\r\n  }\r\n\r\n  .xtmim-304-316l-page table {\r\n    min-width: 760px;\r\n  }\r\n}\r\n\r\n@media (max-width: 600px) {\r\n  .xtmim-304-316l-page .xtmim-container {\r\n    padding-left: 16px;\r\n    padding-right: 16px;\r\n  }\r\n\r\n  .xtmim-304-316l-page .xtmim-page-title {\r\n    font-size: 34px;\r\n  }\r\n\r\n  .xtmim-304-316l-page .xtmim-hero-lede,\r\n  .xtmim-304-316l-page .xtmim-section-intro {\r\n    font-size: 17px;\r\n  }\r\n\r\n  .xtmim-304-316l-page th,\r\n  .xtmim-304-316l-page td {\r\n    padding: 13px 14px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<article class=\"xtmim-304-316l-page\">\r\n  <section class=\"xtmim-hero\" aria-labelledby=\"page-introduction\">\r\n    <div class=\"xtmim-container\">\r\n      <p class=\"xtmim-kicker\">MIM Material Comparison<\/p>\r\n      <div class=\"xtmim-page-title\" id=\"page-introduction\">304 vs 316L Stainless Steel for MIM Parts<\/div>\r\n      <p class=\"xtmim-hero-lede\">\r\n        Compare 304 and 316L stainless steel from a MIM project review perspective, including corrosion exposure, prepared feedstock, sintering, surface finish, cost, and RFQ requirements.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-quick-answer\">\r\n        <p>\r\n          <strong>Quick answer:<\/strong> 304 is often suitable for general stainless MIM parts used in indoor, dry, moderately corrosive, or cost-sensitive applications. 316L is usually the safer choice when the part may face moisture, sweat, cleaning agents, light chloride exposure, or higher surface cleanliness requirements. In MIM, the final decision should also consider prepared feedstock availability, sintering route, dimensional control, secondary operations, and inspection.\r\n        <\/p>\r\n        <p>\r\n          Before tooling, do not decide by grade name alone. Confirm the service environment, critical dimensions, surface finish route, annual volume, and whether the drawing allows 304 \/ 316L substitution after engineering review.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"xtmim-hero-actions\" aria-label=\"Project review actions\">\r\n        <a class=\"xtmim-btn xtmim-btn-primary\" href=\"https:\/\/xtmim.com\/submit-drawing-for-review\/\">Submit Drawing for Review<\/a>\r\n        <a class=\"xtmim-btn xtmim-btn-secondary\" href=\"https:\/\/xtmim.com\/rfq-preparation-guide\/\">Prepare RFQ Information<\/a>\r\n      <\/div>\r\n\r\n      <figure class=\"xtmim-figure xtmim-hero-figure\" data-image-status=\"final\" data-image-slot=\"image-01-hero\">\r\n        <img fetchpriority=\"high\" src=\"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/01-304-316l-stainless-mim-parts-hero.webp\" width=\"2172\" height=\"724\" alt=\"Small stainless steel MIM components arranged for a 304 versus 316L material comparison before project review.\" title=\"304 and 316L stainless steel MIM parts comparison\" loading=\"eager\" decoding=\"async\" fetchpriority=\"high\">\r\n        <figcaption>304 and 316L stainless steel MIM parts should be compared by application environment, corrosion risk, and production review requirements.<\/figcaption>\r\n        <p class=\"xtmim-figure-note\"><strong>Core conclusion:<\/strong> 304 and 316L are both usable stainless MIM material routes, but the better choice depends on service environment and manufacturing review.<\/p>\r\n      <\/figure>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section\" aria-labelledby=\"quick-answer\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"quick-answer\">304 vs 316L Stainless Steel: Quick Answer for MIM Projects<\/h2>\r\n      <p>\r\n        From a MIM project review perspective, 304 and 316L stainless steel should not be selected only by comparing generic material descriptions. 304 can be a practical route for general stainless components, while 316L should be reviewed when corrosion exposure, handling conditions, cleaning environment, or surface cleanliness requirements are more demanding.\r\n      <\/p>\r\n      <p>\r\n        A common mistake is to treat 316L as automatically better for every MIM part. 316L can provide a stronger corrosion-resistance margin in many service environments, but it may not be necessary for every component. Before tooling, the project team should confirm the application environment, critical dimensions, surface finish requirements, expected annual volume, and whether the drawing allows material substitution.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-grid xtmim-grid-3\">\r\n        <div class=\"xtmim-card\">\r\n          <span class=\"xtmim-card-label\">Choose 304 when<\/span>\r\n          <h3>304 Is Usually Enough<\/h3>\r\n          <p>\r\n            304 stainless steel may be suitable for indoor, dry, or moderately corrosive applications where general stainless performance and cost balance are more important than maximum corrosion margin.\r\n          <\/p>\r\n        <\/div>\r\n        <div class=\"xtmim-card\">\r\n          <span class=\"xtmim-card-label\">Review 316L when<\/span>\r\n          <h3>316L Is the Safer Choice<\/h3>\r\n          <p>\r\n            316L should be reviewed when the part may face sweat, moisture, cleaning agents, mild chloride contact, or higher visual surface requirements.\r\n          <\/p>\r\n        <\/div>\r\n        <div class=\"xtmim-card\">\r\n          <span class=\"xtmim-card-label\">MIM-specific factor<\/span>\r\n          <h3>The Process Changes the Decision<\/h3>\r\n          <p>\r\n            MIM material selection also depends on prepared feedstock, molding stability, debinding, sintering shrinkage, secondary operations, and inspection.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"xtmim-callout\">\r\n        <p>\r\n          <strong>Project review logic:<\/strong> If the drawing lists only \u201cstainless steel,\u201d first confirm whether the project is driven by corrosion resistance, appearance, cost, dimensional stability, surface treatment, or inspection acceptance. The material grade should be locked only after those requirements are clear.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section xtmim-section-alt\" aria-labelledby=\"main-differences\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"main-differences\">Main Differences Between 304 and 316L in MIM<\/h2>\r\n      <p class=\"xtmim-section-intro\">\r\n        The main difference between 304 and 316L stainless steel is often discussed through corrosion resistance, but a MIM project needs a broader decision table. The project team should compare material performance, production availability, sintering behavior, surface finish route, and RFQ risk.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-table-wrap\">\r\n        <table>\r\n          <thead>\r\n            <tr>\r\n              <th>Review Item<\/th>\r\n              <th>304 Stainless Steel in MIM<\/th>\r\n              <th>316L Stainless Steel in MIM<\/th>\r\n              <th>Engineering Meaning<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n          <tbody>\r\n            <tr>\r\n              <td>General corrosion resistance<\/td>\r\n              <td>Suitable for many general stainless applications<\/td>\r\n              <td>Usually stronger in more demanding corrosion environments<\/td>\r\n              <td>316L may be preferred when environment risk is higher<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Chloride \/ sweat \/ moisture exposure<\/td>\r\n              <td>Needs careful review<\/td>\r\n              <td>Usually safer than 304<\/td>\r\n              <td>Important for wearable, handled, or cleaned parts<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Cost sensitivity<\/td>\r\n              <td>Often more attractive for general use<\/td>\r\n              <td>May require higher material-cost justification<\/td>\r\n              <td>Annual volume and function should guide the choice<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Feedstock availability<\/td>\r\n              <td>Must be confirmed with supplier<\/td>\r\n              <td>Must be confirmed with supplier<\/td>\r\n              <td>MIM uses prepared feedstock, not raw bar or sheet<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Sintering and dimensional review<\/td>\r\n              <td>Depends on part geometry and process route<\/td>\r\n              <td>Depends on part geometry and process route<\/td>\r\n              <td>Grade choice does not remove shrinkage and distortion risk<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Surface finishing<\/td>\r\n              <td>Polishing, cleaning, passivation, or coating may be reviewed<\/td>\r\n              <td>Often paired with stronger surface cleanliness requirements<\/td>\r\n              <td>Final surface condition affects real-world performance<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>RFQ risk<\/td>\r\n              <td>Risk if corrosion exposure is not described<\/td>\r\n              <td>Risk if selected only as a premium grade without requirements<\/td>\r\n              <td>Application environment must be submitted with the drawing<\/td>\r\n            <\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n\r\n      <p>\r\n        If the drawing only says \u201cstainless steel\u201d or \u201c304\/316L optional,\u201d the supplier may not know whether the project is driven by corrosion resistance, cost, appearance, magnetic response, finishing, or inspection. For wider material routing, see the <a href=\"https:\/\/xtmim.com\/mim-materials\/compare\/\">MIM material comparison<\/a> page. For property-driven material screening, review <a href=\"https:\/\/xtmim.com\/mim-materials\/material-properties\/\">MIM material properties<\/a>.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-callout\">\r\n        <p>\r\n          <strong>Do not use this table as material approval by itself.<\/strong> It is a project-screening guide. Final material confirmation should be based on the drawing, application environment, feedstock availability, finishing route, and customer acceptance requirements.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <figure class=\"xtmim-figure\" data-image-status=\"final\" data-image-slot=\"image-02-main-difference\">\r\n        <img loading=\"lazy\" src=\"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/02-304-316l-mim-material-review.webp\" width=\"1600\" height=\"900\" alt=\"Engineering review scene comparing 304 and 316L stainless steel MIM parts by material route and surface condition.\" title=\"304 vs 316L MIM material review\" loading=\"lazy\" decoding=\"async\">\r\n        <figcaption>304 and 316L stainless steel should be compared by corrosion exposure, surface finish, feedstock availability, and RFQ requirements.<\/figcaption>\r\n        <p class=\"xtmim-figure-note\"><strong>Core conclusion:<\/strong> The main difference in MIM is not only alloy chemistry but also how each material route fits the part environment and production review.<\/p>\r\n      <\/figure>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section\" aria-labelledby=\"corrosion-resistance\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"corrosion-resistance\">Corrosion Resistance: Where 316L Has a Real Advantage<\/h2>\r\n      <p>\r\n        316L is commonly selected when corrosion resistance is a stronger design requirement. Compared with 304, 316L has a stronger position in many environments where chloride exposure, moisture, sweat, cleaning solution, or surface contamination could become a concern. This does not mean 316L is corrosion-proof. It means the project has a larger corrosion-resistance margin when the service environment is more demanding. For broader corrosion-driven material routing, review <a href=\"https:\/\/xtmim.com\/mim-materials\/material-properties\/corrosion-resistant-mim-materials\/\">corrosion-resistant MIM materials<\/a>.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-source-note\">\r\n        <p>\r\n          <strong>Technical source note:<\/strong> General stainless steel corrosion references identify molybdenum as one of the alloying elements that improves resistance to localized pitting and crevice corrosion in austenitic stainless steels. This supports why 316 \/ 316L is commonly reviewed when chloride or moisture exposure is more demanding than a normal indoor environment. This is used as material-selection background, not as a guaranteed corrosion-performance claim.\r\n        <\/p>\r\n        <p>\r\n          Reference: <a href=\"https:\/\/www.ssina.com\/education\/corrosion\/pitting-and-crevice-corrosion\/\" target=\"_blank\" rel=\"nofollow noopener\">Specialty Steel Industry of North America, Pitting and Crevice Corrosion<\/a>.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <h3>General Indoor or Dry Applications<\/h3>\r\n      <p>\r\n        For dry indoor parts or internal components with moderate corrosion requirements, 304 may be enough. Examples include general mechanical retainers, housings, brackets, small hardware, and stainless parts used in controlled environments. In these projects, the engineering review may focus more on geometry, dimensional stability, assembly, and cost than on maximum corrosion resistance.\r\n      <\/p>\r\n\r\n      <h3>Sweat, Moisture, Chloride, and Cleaning Exposure<\/h3>\r\n      <p>\r\n        316L should be reviewed when the part may contact sweat, moisture, mild chloride, cleaning agents, or other environments where 304 may not provide enough margin. This is especially relevant for small MIM parts used in handheld devices, wearable components, visible stainless parts, or assemblies that may be cleaned repeatedly.\r\n      <\/p>\r\n\r\n      <h3>Why Surface Finish and Passivation Still Matter<\/h3>\r\n      <p>\r\n        Corrosion performance is not determined by material grade alone. For stainless MIM parts, final surface condition can be affected by sintering quality, polishing, machining, blasting, cleaning, and passivation. If a part has tight cosmetic requirements or corrosion acceptance tests, the finishing route must be reviewed early.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-callout\">\r\n        <p>\r\n          <strong>Engineering note:<\/strong> A 316L part with poor surface control can still fail customer expectations, while a properly reviewed 304 part may be sufficient for a moderate environment. The material grade, post-processing route, and inspection criteria should be aligned before the tooling decision.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"xtmim-table-wrap\">\r\n        <table>\r\n          <thead>\r\n            <tr>\r\n              <th>Corrosion-Related RFQ Trigger<\/th>\r\n              <th>Why It Matters<\/th>\r\n              <th>Material Review Direction<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n          <tbody>\r\n            <tr>\r\n              <td>Dry indoor use<\/td>\r\n              <td>Corrosion risk is usually moderate, so cost and geometry may drive the decision<\/td>\r\n              <td>304 may be suitable after normal project review<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Frequent hand contact or sweat exposure<\/td>\r\n              <td>Surface contamination and moisture can make corrosion margin more important<\/td>\r\n              <td>316L should be reviewed before tooling<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Cleaning agent exposure<\/td>\r\n              <td>Cleaning route and chemical environment may affect stainless surface condition<\/td>\r\n              <td>316L plus finishing \/ passivation review may be needed<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Visible cosmetic surface<\/td>\r\n              <td>Appearance complaints may occur even when function is acceptable<\/td>\r\n              <td>Review grade, polishing, cleaning, and acceptance standard together<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Unknown service environment<\/td>\r\n              <td>The supplier cannot safely judge corrosion risk from grade name alone<\/td>\r\n              <td>Submit application environment before quotation<\/td>\r\n            <\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n\r\n      <figure class=\"xtmim-figure\" data-image-status=\"final\" data-image-slot=\"image-03-corrosion-environment\">\r\n        <img loading=\"lazy\" src=\"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/03-stainless-mim-corrosion-environment-review.webp\" width=\"1600\" height=\"900\" alt=\"Stainless steel MIM parts reviewed under dry, moisture, and cleaning exposure conditions before choosing 304 or 316L.\" title=\"Corrosion environment review for stainless MIM parts\" loading=\"lazy\" decoding=\"async\">\r\n        <figcaption>Application environment is a key factor when deciding whether 304 is sufficient or 316L should be reviewed.<\/figcaption>\r\n        <p class=\"xtmim-figure-note\"><strong>Core conclusion:<\/strong> 316L should be reviewed when moisture, sweat, cleaning agents, or light chloride exposure create a higher corrosion-resistance requirement.<\/p>\r\n      <\/figure>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section xtmim-section-alt\" aria-labelledby=\"mim-process-factors\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"mim-process-factors\">MIM Process Factors That Affect 304 and 316L Selection<\/h2>\r\n      <p class=\"xtmim-section-intro\">\r\n        MIM changes the material selection process because the part is not machined directly from bar stock. It is produced from prepared metal powder feedstock, molded as a green part, debound, sintered, and then inspected or finished. Each step can influence the final part.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-source-note\">\r\n        <p>\r\n          <strong>MIM standards context:<\/strong> MPIF Standard 35-MIM is a useful background reference because it covers common materials used in metal injection molding, with explanatory notes and definitions. The actual 304 or 316L route for a project should still be reviewed against the selected feedstock, part geometry, sintering route, surface requirements, and customer acceptance criteria.\r\n        <\/p>\r\n        <p>\r\n          Reference: <a href=\"https:\/\/www.mpif.org\/Resources\/Standards.aspx\" target=\"_blank\" rel=\"nofollow noopener\">MPIF Standard 35-MIM<\/a>.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"xtmim-grid xtmim-grid-2\">\r\n        <div class=\"xtmim-card\">\r\n          <h3>Feedstock Availability and Supplier Review<\/h3>\r\n          <p>\r\n            MIM feedstock availability should be confirmed before quotation. A project may specify 304 or 316L, but the supplier still needs to confirm whether suitable prepared MIM feedstock is available for the required part size, geometry, volume, and performance expectation.\r\n          <\/p>\r\n        <\/div>\r\n        <div class=\"xtmim-card\">\r\n          <h3>Sintering Route and Density Control<\/h3>\r\n          <p>\r\n            Both 304 and 316L stainless MIM parts require sintering review. Sintering affects shrinkage, density, distortion, surface condition, and dimensional repeatability. The material grade does not remove the need for tooling compensation or process control.\r\n          <\/p>\r\n        <\/div>\r\n        <div class=\"xtmim-card\">\r\n          <h3>Shrinkage, Distortion, and Dimensional Review<\/h3>\r\n          <p>\r\n            MIM parts shrink during sintering. Thin walls, uneven sections, long slender features, holes, slots, and unsupported structures can all affect dimensional stability.\r\n          <\/p>\r\n        <\/div>\r\n        <div class=\"xtmim-card\">\r\n          <h3>Secondary Operations After Sintering<\/h3>\r\n          <p>\r\n            Secondary operations may include sizing, machining, polishing, blasting, passivation, coating, or inspection. These operations can influence cost, lead time, surface finish, corrosion resistance, and final acceptance.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <div class=\"xtmim-table-wrap\">\r\n        <table>\r\n          <thead>\r\n            <tr>\r\n              <th>MIM Review Item<\/th>\r\n              <th>Risk If Skipped<\/th>\r\n              <th>What the Supplier Should Confirm<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n          <tbody>\r\n            <tr>\r\n              <td>Prepared feedstock route<\/td>\r\n              <td>Material name is specified, but no stable MIM feedstock route is confirmed<\/td>\r\n              <td>Availability, material route, and whether substitution needs customer approval<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Tooling compensation<\/td>\r\n              <td>Sintering shrinkage may shift hole positions, wall sections, or assembly dimensions<\/td>\r\n              <td>Critical dimensions, expected shrinkage control approach, and tooling review points<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Sintering support and layout<\/td>\r\n              <td>Thin or long features may deform even if the material grade is correct<\/td>\r\n              <td>Geometry risk, support method, distortion-sensitive areas, and inspection plan<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Surface route<\/td>\r\n              <td>Material grade is correct, but surface condition does not meet corrosion or cosmetic expectations<\/td>\r\n              <td>Polishing, cleaning, passivation, coating, or other finishing requirements<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Inspection and acceptance<\/td>\r\n              <td>Supplier and customer may use different acceptance criteria after production<\/td>\r\n              <td>Critical dimensions, surface criteria, corrosion-related tests, and reporting needs<\/td>\r\n            <\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n\r\n      <p>\r\n        For broader stainless material routing, review <a href=\"https:\/\/xtmim.com\/mim-materials\/stainless-steel\/\">stainless steel for MIM<\/a>. For grade-specific details, see <a href=\"https:\/\/xtmim.com\/mim-materials\/stainless-steel\/304-stainless-steel\/\">304 stainless steel for MIM<\/a> and <a href=\"https:\/\/xtmim.com\/mim-materials\/stainless-steel\/316l-stainless-steel\/\">316L stainless steel for MIM<\/a>.\r\n      <\/p>\r\n\r\n      <figure class=\"xtmim-figure\" data-image-status=\"final\" data-image-slot=\"image-04-mim-process-factors\">\r\n        <img loading=\"lazy\" src=\"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/04-304-316l-mim-process-review.webp\" width=\"1600\" height=\"900\" alt=\"MIM process review layout showing feedstock pellets, green parts, sintered stainless parts, and inspection for 304 and 316L material selection.\" title=\"MIM process review for 304 and 316L parts\" loading=\"lazy\" decoding=\"async\">\r\n        <figcaption>In MIM, 304 and 316L selection must also consider feedstock, molding stability, sintering shrinkage, secondary operations, and inspection.<\/figcaption>\r\n        <p class=\"xtmim-figure-note\"><strong>Core conclusion:<\/strong> The MIM process changes the 304 vs 316L decision because production stability and final part quality depend on more than base alloy chemistry.<\/p>\r\n      <\/figure>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section\" aria-labelledby=\"application-fit\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"application-fit\">Application Fit: When to Choose 304 or 316L for MIM Parts<\/h2>\r\n      <p>\r\n        Material selection should begin with the application environment. The question is not \u201cwhich stainless steel is better,\u201d but \u201cwhich stainless steel is appropriate for this part, this environment, this tolerance, and this production route?\u201d\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-table-wrap\">\r\n        <table>\r\n          <thead>\r\n            <tr>\r\n              <th>Application Condition<\/th>\r\n              <th>304 May Be Suitable<\/th>\r\n              <th>316L Should Be Reviewed<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n          <tbody>\r\n            <tr>\r\n              <td>Dry indoor mechanical part<\/td>\r\n              <td>Yes<\/td>\r\n              <td>Optional if extra corrosion margin is needed<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Cost-sensitive stainless part<\/td>\r\n              <td>Often yes<\/td>\r\n              <td>Only if environment justifies it<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Visible part with moderate handling<\/td>\r\n              <td>Possible with finishing review<\/td>\r\n              <td>Often safer if sweat or cleaning is expected<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Moisture or mild chloride exposure<\/td>\r\n              <td>Needs careful review<\/td>\r\n              <td>Usually preferred<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Repeated cleaning exposure<\/td>\r\n              <td>Case-by-case<\/td>\r\n              <td>Usually preferred<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>High surface cleanliness requirement<\/td>\r\n              <td>Case-by-case<\/td>\r\n              <td>Often preferred<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Unknown corrosion environment<\/td>\r\n              <td>Do not assume<\/td>\r\n              <td>Submit environment details for review<\/td>\r\n            <\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n\r\n      <h3>Typical 304 MIM Part Scenarios<\/h3>\r\n      <p>\r\n        304 may be selected for general stainless MIM components where moderate corrosion resistance, formability in the MIM route, and cost balance are important. It can fit internal mechanical parts, small hardware, brackets, fittings, retainers, and components used in controlled environments.\r\n      <\/p>\r\n\r\n      <h3>Typical 316L MIM Part Scenarios<\/h3>\r\n      <p>\r\n        316L may be selected when the project requires a stronger corrosion-resistance margin. It is commonly reviewed for parts that may be touched frequently, exposed to moisture, cleaned regularly, or used in assemblies where surface condition and corrosion resistance are important.\r\n      <\/p>\r\n\r\n      <h3>When Material Substitution Should Be Reviewed<\/h3>\r\n      <p>\r\n        Sometimes the drawing may specify 304, but the application environment suggests 316L. In other cases, the drawing may specify 316L, but the actual environment may allow 304. Material substitution should never be made only for cost or convenience. It should be reviewed against function, corrosion exposure, customer requirements, and acceptance criteria.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-callout\">\r\n        <p>\r\n          <strong>Substitution control:<\/strong> If both grades are acceptable, the RFQ should state whether 304 or 316L can be selected after engineering review. If the customer requires one fixed grade, the drawing and purchase specification should make that clear before tooling.\r\n        <\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section xtmim-section-alt\" aria-labelledby=\"cost-rfq\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"cost-rfq\">Cost, RFQ, and Supply Considerations<\/h2>\r\n      <p>\r\n        Cost is not only the price of powder or feedstock. For MIM parts, total cost may include tooling, molding stability, debinding, sintering, secondary operations, inspection, packaging, and project validation. A material that looks cheaper at the raw material level may not be cheaper if it causes finishing, tolerance, or acceptance problems.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-grid xtmim-grid-2\">\r\n        <div class=\"xtmim-card\">\r\n          <h3>Why 304 May Be More Cost-Sensitive<\/h3>\r\n          <p>\r\n            304 may be attractive when the part does not need the additional corrosion margin of 316L. If the application is general indoor use and the drawing does not require aggressive corrosion resistance, 304 can be a reasonable stainless steel route for cost-sensitive production.\r\n          <\/p>\r\n        <\/div>\r\n        <div class=\"xtmim-card\">\r\n          <h3>Why 316L May Be Worth the Higher Material Review Cost<\/h3>\r\n          <p>\r\n            316L may be worth reviewing when corrosion performance, surface condition, and customer acceptance are more important than minimum material cost. It can reduce material-selection risk in environments where 304 may be questionable.\r\n          <\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <h3>What to Confirm Before Asking for Price<\/h3>\r\n      <div class=\"xtmim-table-wrap\">\r\n        <table>\r\n          <thead>\r\n            <tr>\r\n              <th>RFQ Input<\/th>\r\n              <th>Why It Matters<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n          <tbody>\r\n            <tr>\r\n              <td>2D drawing and 3D model<\/td>\r\n              <td>Required for geometry, shrinkage, tooling, and tolerance review<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Required material grade<\/td>\r\n              <td>Confirms whether 304, 316L, or substitution is allowed<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Application environment<\/td>\r\n              <td>Determines corrosion-resistance risk<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Critical dimensions<\/td>\r\n              <td>Helps decide whether sizing or machining is needed<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Surface finish requirement<\/td>\r\n              <td>Affects polishing, blasting, passivation, or coating route<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Annual volume<\/td>\r\n              <td>Affects tooling justification and production route<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Inspection requirement<\/td>\r\n              <td>Defines acceptance criteria before production<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Post-processing requirement<\/td>\r\n              <td>Affects cost, lead time, and quality control<\/td>\r\n            <\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n\r\n      <p>\r\n        To prepare project inputs before quotation, review the <a href=\"https:\/\/xtmim.com\/rfq-preparation-guide\/\">RFQ preparation guide<\/a> or submit your drawing directly for engineering review.\r\n      <\/p>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section\" aria-labelledby=\"engineering-checklist\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"engineering-checklist\">Engineering Checklist Before Choosing 304 or 316L<\/h2>\r\n      <p class=\"xtmim-section-intro\">\r\n        Use the following checklist before locking the material grade. A clear material decision reduces RFQ back-and-forth and helps the supplier identify whether the main risk is corrosion, geometry, tolerance, surface finish, or production cost.\r\n      <\/p>\r\n\r\n      <div class=\"xtmim-table-wrap\">\r\n        <table>\r\n          <thead>\r\n            <tr>\r\n              <th>Checklist Item<\/th>\r\n              <th>Review Question<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n          <tbody>\r\n            <tr>\r\n              <td>Environment<\/td>\r\n              <td>Will the part face moisture, sweat, cleaning agents, chloride, or outdoor exposure?<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Function<\/td>\r\n              <td>Is the part structural, cosmetic, sealing-related, wear-related, or assembly-critical?<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Drawing<\/td>\r\n              <td>Are all critical dimensions clearly marked?<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Tolerance<\/td>\r\n              <td>Are tight tolerances truly required on all features, or only on functional areas?<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Surface finish<\/td>\r\n              <td>Does the part need polishing, passivation, coating, or visible surface control?<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Material substitution<\/td>\r\n              <td>Is 304\/316L substitution allowed after engineering review?<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Production volume<\/td>\r\n              <td>Is the annual volume suitable for MIM tooling?<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Inspection<\/td>\r\n              <td>What tests or inspection reports are needed for acceptance?<\/td>\r\n            <\/tr>\r\n            <tr>\r\n              <td>Acceptance standard<\/td>\r\n              <td>Is corrosion, surface appearance, or passivation acceptance defined by a customer specification?<\/td>\r\n            <\/tr>\r\n          <\/tbody>\r\n        <\/table>\r\n      <\/div>\r\n\r\n      <figure class=\"xtmim-figure\" data-image-status=\"final\" data-image-slot=\"image-05-rfq-review\">\r\n        <img loading=\"lazy\" src=\"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/05-304-316l-mim-rfq-review.webp\" width=\"1600\" height=\"900\" alt=\"Engineering RFQ review desk with blurred drawing, material notes, and stainless steel MIM parts for choosing 304 or 316L.\" title=\"RFQ review for 304 and 316L MIM parts\" loading=\"lazy\" decoding=\"async\">\r\n        <figcaption>A complete RFQ should include the drawing, application environment, material requirement, surface finish, annual volume, and inspection needs.<\/figcaption>\r\n        <p class=\"xtmim-figure-note\"><strong>Core conclusion:<\/strong> A clear RFQ package helps the supplier decide whether 304 is sufficient or 316L should be reviewed before tooling.<\/p>\r\n      <\/figure>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section xtmim-section-alt\" aria-labelledby=\"scenario-review\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"scenario-review\">Composite Field Scenario for Engineering Training<\/h2>\r\n      <p>\r\n        A small stainless MIM component is being reviewed before tooling. The part has thin walls, several small holes, a visible surface, and moderate dimensional requirements. The customer initially lists 304 stainless steel because the part is used in a general assembly. During review, the project team confirms that the component may be handled frequently and may occasionally contact sweat or cleaning agents.\r\n      <\/p>\r\n      <p>\r\n        In this situation, the supplier should not immediately switch the material without review. The better approach is to compare 304 and 316L against the actual environment, surface finish requirement, feedstock availability, sintering stability, and cost target. If the corrosion risk is low and the surface requirement is moderate, 304 may remain suitable. If the part is exposed to sweat, cleaning, or visible corrosion risk, 316L should be reviewed before tooling.\r\n      <\/p>\r\n      <p>\r\n        For broader material decision rules, see the <a href=\"https:\/\/xtmim.com\/mim-materials\/material-selection-guide\/\">MIM material selection guide<\/a>.\r\n      <\/p>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section\" aria-labelledby=\"faq\">\r\n    <div class=\"xtmim-container\">\r\n      <h2 id=\"faq\">FAQ About 304 vs 316L Stainless Steel in MIM<\/h2>\r\n      <div class=\"xtmim-faq\">\r\n        <details>\r\n          <summary>Can both 304 and 316L stainless steel be used for MIM parts?<\/summary>\r\n          <div class=\"xtmim-faq-body\">\r\n            <p>Yes. Both can be reviewed for MIM projects, but the final choice depends on prepared feedstock availability, part geometry, sintering route, corrosion environment, surface finish, and inspection requirements.<\/p>\r\n          <\/div>\r\n        <\/details>\r\n\r\n        <details>\r\n          <summary>Is 316L always better than 304 for MIM?<\/summary>\r\n          <div class=\"xtmim-faq-body\">\r\n            <p>No. 316L usually provides stronger corrosion resistance in more demanding environments, but 304 may be sufficient for general indoor or moderate corrosion applications. The better choice depends on the part\u2019s real service conditions.<\/p>\r\n          <\/div>\r\n        <\/details>\r\n\r\n        <details>\r\n          <summary>When should I choose 316L instead of 304?<\/summary>\r\n          <div class=\"xtmim-faq-body\">\r\n            <p>316L should be reviewed when the part may face moisture, sweat, light chloride exposure, cleaning agents, or higher surface cleanliness requirements. It is also useful when corrosion risk is more important than minimum material cost.<\/p>\r\n          <\/div>\r\n        <\/details>\r\n\r\n        <details>\r\n          <summary>Does the MIM process affect corrosion resistance?<\/summary>\r\n          <div class=\"xtmim-faq-body\">\r\n            <p>Yes. Final corrosion performance can be affected by sintered density, surface condition, polishing, machining, cleaning, passivation, and inspection. Material grade alone does not define the final result.<\/p>\r\n          <\/div>\r\n        <\/details>\r\n\r\n        <details>\r\n          <summary>Can 304 be changed to 316L after tooling?<\/summary>\r\n          <div class=\"xtmim-faq-body\">\r\n            <p>It should not be changed casually. Even if the geometry looks similar, a material change may affect feedstock availability, shrinkage review, surface route, inspection, and customer approval. Material substitution should be confirmed before tooling whenever possible.<\/p>\r\n          <\/div>\r\n        <\/details>\r\n\r\n        <details>\r\n          <summary>What information should I send before asking for a 304 or 316L MIM quote?<\/summary>\r\n          <div class=\"xtmim-faq-body\">\r\n            <p>Send a 2D drawing, 3D model, required material grade, application environment, annual volume, critical dimensions, surface finish requirements, and any corrosion or inspection requirements.<\/p>\r\n          <\/div>\r\n        <\/details>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section xtmim-section-alt\" aria-labelledby=\"engineering-review-note\">\r\n    <div class=\"xtmim-container\">\r\n      <div class=\"xtmim-author\" id=\"engineering-review-note\">\r\n        <h2>Engineering Review Note<\/h2>\r\n        <p>\r\n          <strong>Author:<\/strong> XTMIM Engineering Team\r\n        <\/p>\r\n        <p>\r\n          This article is prepared from a MIM project review perspective. Material selection should be confirmed together with part geometry, prepared feedstock availability, sintering route, critical dimensions, surface finish, inspection requirements, and actual service environment. The final material route should be reviewed before tooling and RFQ confirmation.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"xtmim-standards xtmim-mt-24\">\r\n        <h2>Standards and Project Specification Note<\/h2>\r\n        <p>\r\n          304 and 316L stainless steel selection should be reviewed according to the project\u2019s drawing, application environment, surface requirements, and inspection criteria. If corrosion resistance, passivation, or special acceptance tests are required, the customer should provide the applicable standard, test method, or internal specification before quotation.\r\n        <\/p>\r\n        <p>\r\n          The references below are provided as engineering background for material and surface-treatment terminology. They should not be read as XTMIM certification, customer approval, or a guaranteed material-performance claim.\r\n        <\/p>\r\n      <\/div>\r\n\r\n      <div class=\"xtmim-references xtmim-mt-24\">\r\n        <h2>Technical References<\/h2>\r\n        <p>\r\n          The following references may help engineering and sourcing teams review MIM material standards, stainless steel corrosion terminology, passivation, and cleaning \/ surface preparation terminology.\r\n        <\/p>\r\n        <ul class=\"xtmim-reference-list\">\r\n          <li>\r\n            <a href=\"https:\/\/www.mpif.org\/Resources\/Standards.aspx\" target=\"_blank\" rel=\"nofollow noopener\">MPIF Standard 35-MIM<\/a>\r\n            <span> \u2014 Metal Powder Industries Federation material standards resource for common MIM materials.<\/span>\r\n          <\/li>\r\n          <li>\r\n            <a href=\"https:\/\/www.ssina.com\/education\/corrosion\/pitting-and-crevice-corrosion\/\" target=\"_blank\" rel=\"nofollow noopener\">SSINA, Pitting and Crevice Corrosion<\/a>\r\n            <span> \u2014 Stainless steel corrosion background explaining alloying elements that improve localized corrosion resistance.<\/span>\r\n          <\/li>\r\n          <li>\r\n            <a href=\"https:\/\/store.astm.org\/a0967_a0967m-25.html\" target=\"_blank\" rel=\"nofollow noopener\">ASTM A967\/A967M<\/a>\r\n            <span> \u2014 Standard specification related to chemical passivation treatments for stainless steel parts.<\/span>\r\n          <\/li>\r\n          <li>\r\n            <a href=\"https:\/\/store.astm.org\/a0380_a0380m-25.html\" target=\"_blank\" rel=\"nofollow noopener\">ASTM A380\/A380M<\/a>\r\n            <span> \u2014 Standard practice related to cleaning, descaling, pickling, and passivation recommendations for stainless steel parts, equipment, and systems.<\/span>\r\n          <\/li>\r\n        <\/ul>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n\r\n  <section class=\"xtmim-section\" aria-labelledby=\"project-review-cta\">\r\n    <div class=\"xtmim-container\">\r\n      <div class=\"xtmim-final-cta\">\r\n        <h2 id=\"project-review-cta\">Need a 304 vs 316L Material Review for a MIM Part?<\/h2>\r\n        <p>\r\n          If you are comparing 304 and 316L stainless steel for a MIM part, send your drawing, 3D model, application environment, surface finish requirement, and expected annual volume. XTMIM can review whether 304 is sufficient, whether 316L should be selected, and which manufacturing risks should be confirmed before tooling.\r\n        <\/p>\r\n        <div class=\"xtmim-cta-actions\">\r\n          <a class=\"xtmim-btn xtmim-btn-primary\" href=\"https:\/\/xtmim.com\/submit-drawing-for-review\/\">Submit Drawing for Review<\/a>\r\n          <a class=\"xtmim-btn xtmim-btn-secondary\" href=\"https:\/\/xtmim.com\/request-a-quote\/\">Request a Quote<\/a>\r\n        <\/div>\r\n      <\/div>\r\n    <\/div>\r\n  <\/section>\r\n<\/article>\r\n\r\n<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@graph\": [\r\n    {\r\n      \"@type\": \"BreadcrumbList\",\r\n      \"@id\": \"https:\/\/xtmim.com\/mim-materials\/compare\/304-vs-316l-stainless-steel\/#breadcrumb\",\r\n      \"itemListElement\": [\r\n        {\r\n          \"@type\": \"ListItem\",\r\n          \"position\": 1,\r\n          \"name\": \"Home\",\r\n          \"item\": \"https:\/\/xtmim.com\/\"\r\n        },\r\n        {\r\n          \"@type\": \"ListItem\",\r\n          \"position\": 2,\r\n          \"name\": \"MIM Materials\",\r\n          \"item\": \"https:\/\/xtmim.com\/mim-materials\/\"\r\n        },\r\n        {\r\n          \"@type\": \"ListItem\",\r\n          \"position\": 3,\r\n          \"name\": \"MIM Material Comparison\",\r\n          \"item\": \"https:\/\/xtmim.com\/mim-materials\/compare\/\"\r\n        },\r\n        {\r\n          \"@type\": \"ListItem\",\r\n          \"position\": 4,\r\n          \"name\": \"304 vs 316L Stainless Steel\",\r\n          \"item\": \"https:\/\/xtmim.com\/mim-materials\/compare\/304-vs-316l-stainless-steel\/\"\r\n        }\r\n      ]\r\n    },\r\n    {\r\n      \"@type\": \"TechArticle\",\r\n      \"@id\": \"https:\/\/xtmim.com\/mim-materials\/compare\/304-vs-316l-stainless-steel\/#techarticle\",\r\n      \"headline\": \"304 vs 316L Stainless Steel for MIM Parts\",\r\n      \"description\": \"Compare 304 and 316L stainless steel for MIM projects, including corrosion resistance, feedstock, sintering, surface finish, cost, and RFQ review.\",\r\n      \"mainEntityOfPage\": \"https:\/\/xtmim.com\/mim-materials\/compare\/304-vs-316l-stainless-steel\/\",\r\n      \"image\": [\r\n        \"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/01-304-316l-stainless-mim-parts-hero.webp\",\r\n        \"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/02-304-316l-mim-material-review.webp\",\r\n        \"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/03-stainless-mim-corrosion-environment-review.webp\",\r\n        \"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/04-304-316l-mim-process-review.webp\",\r\n        \"https:\/\/xtmim.com\/wp-content\/uploads\/2026\/06\/05-304-316l-mim-rfq-review.webp\"\r\n      ],\r\n      \"author\": {\r\n        \"@type\": \"Organization\",\r\n        \"name\": \"XTMIM Engineering Team\",\r\n        \"url\": \"https:\/\/xtmim.com\/engineering-author\/\"\r\n      },\r\n      \"publisher\": {\r\n        \"@type\": \"Organization\",\r\n        \"name\": \"XTMIM\",\r\n        \"url\": \"https:\/\/xtmim.com\/\"\r\n      },\r\n      \"about\": [\r\n        \"304 stainless steel\",\r\n        \"316L stainless steel\",\r\n        \"metal injection molding\",\r\n        \"MIM material selection\",\r\n        \"stainless steel MIM parts\"\r\n      ],\r\n      \"isPartOf\": {\r\n        \"@type\": \"WebPage\",\r\n        \"name\": \"MIM Material Comparison\",\r\n        \"url\": \"https:\/\/xtmim.com\/mim-materials\/compare\/\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"FAQPage\",\r\n      \"@id\": \"https:\/\/xtmim.com\/mim-materials\/compare\/304-vs-316l-stainless-steel\/#faq\",\r\n      \"mainEntity\": [\r\n        {\r\n          \"@type\": \"Question\",\r\n          \"name\": \"Can both 304 and 316L stainless steel be used for MIM parts?\",\r\n          \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"Yes. Both can be reviewed for MIM projects, but the final choice depends on prepared feedstock availability, part geometry, sintering route, corrosion environment, surface finish, and inspection requirements.\"\r\n          }\r\n        },\r\n        {\r\n          \"@type\": \"Question\",\r\n          \"name\": \"Is 316L always better than 304 for MIM?\",\r\n          \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"No. 316L usually provides stronger corrosion resistance in more demanding environments, but 304 may be sufficient for general indoor or moderate corrosion applications. 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Material substitution should be confirmed before tooling whenever possible.\"\r\n          }\r\n        },\r\n        {\r\n          \"@type\": \"Question\",\r\n          \"name\": \"What information should I send before asking for a 304 or 316L MIM quote?\",\r\n          \"acceptedAnswer\": {\r\n            \"@type\": \"Answer\",\r\n            \"text\": \"Send a 2D drawing, 3D model, required material grade, application environment, annual volume, critical dimensions, surface finish requirements, and any corrosion or inspection requirements.\"\r\n          }\r\n        }\r\n      ]\r\n    }\r\n  ]\r\n}\r\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>304 vs 316L Stainless Steel for MIM Parts MIM Material Comparison 304 vs 316L Stainless Steel for MIM Parts Compare 304 and 316L stainless steel from a MIM project review perspective, including corrosion exposure, prepared feedstock, sintering, surface finish, cost, and RFQ requirements. Quick answer: 304 is often suitable for general stainless MIM parts used&#8230;<\/p>","protected":false},"author":1,"featured_media":56139,"parent":51313,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-56144","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/pages\/56144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/comments?post=56144"}],"version-history":[{"count":4,"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/pages\/56144\/revisions"}],"predecessor-version":[{"id":56148,"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/pages\/56144\/revisions\/56148"}],"up":[{"embeddable":true,"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/pages\/51313"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/media\/56139"}],"wp:attachment":[{"href":"https:\/\/xtmim.com\/pt-br\/wp-json\/wp\/v2\/media?parent=56144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}