{"id":2206,"date":"2026-09-10T17:45:25","date_gmt":"2026-09-10T09:45:25","guid":{"rendered":"https:\/\/www.jccncmachining.com\/?p=2206"},"modified":"2026-09-09T16:38:40","modified_gmt":"2026-09-09T08:38:40","slug":"%d8%aa%d8%b5%d9%86%d9%8a%d8%b9-cnc-%d9%84%d9%80-304-%d9%85%d9%82%d8%a7%d8%a8%d9%84-316-%d9%85%d9%82%d8%a7%d8%a8%d9%84-17-4-ph","status":"publish","type":"post","link":"https:\/\/www.jccncmachining.com\/ar\/%d9%85%d8%af%d9%88%d9%86%d8%a9\/%d8%aa%d8%b5%d9%86%d9%8a%d8%b9-cnc-%d9%84%d9%80-304-%d9%85%d9%82%d8%a7%d8%a8%d9%84-316-%d9%85%d9%82%d8%a7%d8%a8%d9%84-17-4-ph\/","title":{"rendered":"304 \u0623\u0648 316 \u0623\u0648 17-4 PH\u061f \u0627\u062e\u062a\u0631 \u0627\u0644\u0641\u0648\u0644\u0627\u0630 \u0627\u0644\u0645\u0642\u0627\u0648\u0645 \u0644\u0644\u0635\u062f\u0623 \u0627\u0644\u0645\u0646\u0627\u0633\u0628 \u0644\u0644\u0645\u0647\u0645\u0629"},"content":{"rendered":"<p>\u0636\u0639 \u063a\u0644\u0627\u0641\u064b\u0627 \u0645\u0642\u0627\u0648\u0645\u064b\u0627 \u0644\u0644\u063a\u0633\u0644\u060c \u0648\u0643\u062a\u0644\u0629 \u062a\u062b\u0628\u064a\u062a \u062c\u0627\u0641\u0629\u060c \u0648\u0639\u0645\u0648\u062f \u062f\u0648\u0631\u0627\u0646 \u0645\u062d\u0645\u0651\u0644\u064b\u0627 \u0628\u0634\u0643\u0644 \u0643\u0628\u064a\u0631 \u0639\u0644\u0649 \u0637\u0627\u0648\u0644\u0629 \u0645\u0631\u0627\u062c\u0639\u0629 \u0627\u0644\u0631\u0633\u0645 \u0646\u0641\u0633\u0647. \u0642\u062f \u062a\u062d\u062a\u0627\u062c \u062c\u0645\u064a\u0639\u0647\u0627 \u0625\u0644\u0649 \u0627\u0644\u0633\u062a\u0627\u0646\u0644\u0633 \u0633\u062a\u064a\u0644\u060c \u0644\u0643\u0646\u0647\u0627 \u0644\u0627 \u062a\u062d\u062a\u0627\u062c\u0647 \u0644\u0644\u0633\u0628\u0628 \u0646\u0641\u0633\u0647.<\/p>\n<p><strong>304 \u0645\u0631\u0634\u062d \u0644\u0644\u0645\u0647\u0627\u0645 \u0627\u0644\u0639\u0627\u0645\u0629 \u0627\u0644\u0645\u0642\u0627\u0648\u0645\u0629 \u0644\u0644\u062a\u0622\u0643\u0644\u061b \u0648316 \u064a\u0636\u064a\u0641 \u0645\u0642\u0627\u0648\u0645\u0629 \u0644\u0644\u062a\u0622\u0643\u0644 \u0627\u0644\u0645\u0648\u0636\u0639\u064a \u0641\u064a \u0628\u0639\u0636 \u0627\u0644\u0628\u064a\u0626\u0627\u062a \u0627\u0644\u0623\u0643\u062b\u0631 \u062a\u0637\u0644\u0628\u064b\u0627\u061b \u0648\u064a\u0648\u0641\u0631 17-4 PH \u0645\u0633\u0627\u0631 \u0645\u0639\u0627\u0644\u062c\u0629 \u062d\u0631\u0627\u0631\u064a\u0629 \u0644\u0644\u0648\u0635\u0648\u0644 \u0625\u0644\u0649 \u0642\u0648\u0629 \u0623\u0639\u0644\u0649 \u0628\u0643\u062b\u064a\u0631.<\/strong> \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631 \u0644\u064a\u0633 \u062a\u062f\u0631\u062c\u064b\u0627 \u0645\u0646 \u0627\u0644\u062c\u064a\u062f \u0625\u0644\u0649 \u0627\u0644\u0623\u0641\u0636\u0644 \u0625\u0644\u0649 \u0627\u0644\u0623\u0641\u0636\u0644 \u0639\u0644\u0649 \u0627\u0644\u0625\u0637\u0644\u0627\u0642. \u064a\u062c\u0628 \u0623\u0646 \u062a\u062c\u062a\u0627\u0632 \u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u062a\u0622\u0643\u0644 \u0648\u0627\u0644\u062a\u062d\u0645\u064a\u0644 \u0648\u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u0645\u064f\u0633\u0644\u064e\u0651\u0645\u0629 \u0643\u0644\u0647\u0627 \u0627\u0644\u0627\u062e\u062a\u0628\u0627\u0631 \u0628\u0634\u0643\u0644 \u0645\u0633\u062a\u0642\u0644.<\/p>\n<p>\u0647\u0630\u0647 \u0627\u0644\u0645\u0642\u0627\u0631\u0646\u0629 \u0628\u064a\u0646 \u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0633\u062a\u0627\u0646\u0644\u0633 \u0633\u062a\u064a\u0644 304 \u0645\u0642\u0627\u0628\u0644 316 \u0645\u0642\u0627\u0628\u0644 17-4 PH \u062a\u0642\u0639 \u0636\u0645\u0646 <a href=\"https:\/\/www.jccncmachining.com\/ar\/%d9%85%d8%af%d9%88%d9%86%d8%a9\/%d9%85%d9%88%d8%a7%d8%af-%d8%a7%d9%84%d8%aa%d8%b5%d9%86%d9%8a%d8%b9-%d8%a8%d8%a7%d8%b3%d8%aa%d8%ae%d8%af%d8%a7%d9%85-%d8%a7%d9%84%d8%ad%d8%a7%d8%b3%d8%a8-%d8%a7%d9%84%d8%a2%d9%84%d9%8a\/\">\u0625\u0637\u0627\u0631 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0645\u0648\u0627\u062f \u0644\u0623\u062c\u0632\u0627\u0621 CNC<\/a>. \u0648\u062a\u0631\u0643\u064a\u0632\u0647\u0627 \u0647\u0648 \u0627\u062e\u062a\u064a\u0627\u0631 \u0645\u0633\u0627\u0631 \u0627\u0644\u062a\u0635\u0646\u064a\u0639\u060c \u0648\u0644\u064a\u0633 \u0648\u0635\u0641 \u0633\u0631\u0639\u0629 \u0642\u0637\u0639 \u0639\u0627\u0644\u0645\u064a\u0629.<\/p>\n<nav aria-label=\"\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a\"><strong>\u0627\u0633\u062a\u0643\u0634\u0641 \u0627\u0644\u0642\u0631\u0627\u0631<\/strong><\/p>\n<ul>\n<li><a href=\"#three-duties\">\u062b\u0644\u0627\u062b\u0629 \u0623\u062c\u0632\u0627\u0621\u060c \u062b\u0644\u0627\u062b \u0645\u0647\u0627\u0645 \u0645\u062e\u062a\u0644\u0641\u0629<\/a><\/li>\n<li><a href=\"#exposure\">\u0627\u0643\u062a\u0628 \u0633\u062c\u0644 \u0627\u0644\u062a\u0639\u0631\u0636\u060c \u0648\u0644\u064a\u0633 \u0641\u0642\u0637 \u201c\u0645\u064f\u0633\u0628\u0650\u0651\u0628 \u0644\u0644\u062a\u0622\u0643\u0644\u201d<\/a><\/li>\n<li><a href=\"#strength-route\">\u064a\u063a\u064a\u0651\u0631 17-4 PH \u0645\u0633\u0627\u0631 \u0627\u0644\u0642\u0648\u0629<\/a><\/li>\n<li><a href=\"#machining-state\">\u0627\u062e\u062a\u0631 \u0645\u062a\u0649 \u062a\u064f\u0635\u0646\u0639 \u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629<\/a><\/li>\n<li><a href=\"#acceptance\">\u0623\u0631\u0628\u0639\u0629 \u0623\u062f\u0644\u0629 \u0639\u0646\u062f \u0627\u0644\u0642\u0628\u0648\u0644<\/a><\/li>\n<li><a href=\"#substitutions\">\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0627\u0633\u062a\u0628\u062f\u0627\u0644 \u0627\u0644\u062a\u064a \u064a\u0633\u062a\u062d\u0642 \u062d\u0633\u0645\u0647\u0627 \u0645\u0628\u0643\u0631\u064b\u0627<\/a><\/li>\n<\/ul>\n<\/nav>\n<section id=\"three-duties\">\n<h2>\u062b\u0644\u0627\u062b\u0629 \u0623\u062c\u0632\u0627\u0621\u060c \u062b\u0644\u0627\u062b \u0645\u0647\u0627\u0645 \u0645\u062e\u062a\u0644\u0641\u0629<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-components-use-context-1024x576.webp\" alt=\"Stainless parts in distinct assemblies\" class=\"size-large wp-image-2233 aligncenter\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-components-use-context-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-components-use-context-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-components-use-context-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-components-use-context-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-components-use-context-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-components-use-context.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h3>\u0643\u062a\u0644\u0629 \u062a\u062b\u0628\u064a\u062a \u062f\u0627\u062e\u0644 \u0622\u0644\u0629 \u062c\u0627\u0641\u0629<\/h3>\n<p>\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0627\u0644\u0623\u062d\u0645\u0627\u0644 \u0645\u062a\u0648\u0627\u0636\u0639\u0629 \u0648\u0627\u0644\u062a\u0646\u0638\u064a\u0641 \u0644\u0637\u064a\u0641\u064b\u0627\u060c \u0641\u0642\u062f \u064a\u0641\u064a 304 \u0628\u0627\u0644\u0645\u062a\u0637\u0644\u0628\u0627\u062a \u062f\u0648\u0646 \u0625\u0636\u0627\u0641\u0629 \u0639\u0645\u0644\u064a\u0629 \u062a\u0642\u0648\u064a\u0629. \u0642\u0628\u0644 \u0627\u062e\u062a\u064a\u0627\u0631 \u062f\u0631\u062c\u0629 \u0623\u0639\u0644\u0649 \u0642\u0648\u0629\u060c \u062d\u062f\u062f \u0627\u0644\u0642\u064a\u062f \u0627\u0644\u0641\u0639\u0644\u064a: \u0627\u0644\u0627\u0646\u0628\u0639\u0627\u062c \u0627\u0644\u0645\u0648\u0636\u0639\u064a\u060c \u0648\u0639\u0645\u0631 \u0627\u0644\u0633\u0646\u0648\u0646 \u0648\u0627\u0644\u062a\u0622\u0643\u0644 \u0645\u0634\u0643\u0644\u0627\u062a \u0645\u062e\u062a\u0644\u0641\u0629 \u0639\u0646 \u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u0634\u062f \u0627\u0644\u0633\u0627\u0643\u0646\u0629.<\/p>\n<h3>\u0645\u0628\u064a\u062a \u0645\u0639\u0631\u0651\u0636 \u0644\u0644\u063a\u0633\u0644 \u0627\u0644\u0645\u062a\u0643\u0631\u0631<\/h3>\n<p>\u064a\u0633\u062a\u062d\u0642 316 \u0627\u0644\u062a\u0642\u064a\u064a\u0645 \u062d\u064a\u062b \u064a\u0628\u0631\u0631 \u0627\u0644\u062a\u0639\u0631\u0636 \u0643\u064a\u0645\u064a\u0627\u0626\u0647 \u0627\u0644\u0645\u0633\u0628\u0648\u0643 \u0628\u0627\u0644\u0645\u0648\u0644\u064a\u0628\u062f\u064a\u0646\u0648\u0645. \u0648\u0645\u0639 \u0630\u0644\u0643\u060c \u0641\u0627\u0644\u0633\u0637\u062d \u0627\u0644\u0642\u0627\u0628\u0644 \u0644\u0644\u062a\u0635\u0631\u064a\u0641 \u0648\u062c\u064a\u0628 \u0627\u0644\u0633\u0627\u0626\u0644 \u0627\u0644\u0645\u062d\u062a\u062c\u0632 \u0644\u064a\u0633\u0627 \u0628\u064a\u0626\u062a\u064a\u0646 \u0645\u062a\u0643\u0627\u0641\u0626\u062a\u064a\u0646. \u0636\u0645\u0651\u0646 \u0627\u0644\u0645\u0646\u0638\u0641 \u0648\u062a\u0631\u0643\u064a\u0632\u0647 \u0648\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644 \u0648\u0627\u0644\u062d\u0627\u0644\u0629 \u0628\u0639\u062f \u0627\u0644\u0634\u0637\u0641. \u0641\u0645\u0635\u0637\u0644\u062d \u201c\u0627\u0644\u063a\u0633\u0644\u201d \u0648\u062d\u062f\u0647 \u0644\u064a\u0633 \u0645\u0648\u0627\u0635\u0641\u0629 \u0645\u0627\u062f\u0629.<\/p>\n<h3>\u0639\u0645\u0648\u062f \u0645\u062f\u0645\u062c \u064a\u062d\u0645\u0644 \u062d\u0645\u0644\u064b\u0627 \u0639\u0627\u0644\u064a\u064b\u0627<\/h3>\n<p>\u0642\u062f \u064a\u0648\u0641\u0631 17-4 PH \u0646\u0637\u0627\u0642 \u0642\u0648\u0629 \u0645\u0641\u064a\u062f\u064b\u0627 \u062d\u064a\u062b \u0644\u0627 \u064a\u0645\u0643\u0646 \u062a\u0648\u0633\u064a\u0639 \u063a\u0644\u0627\u0641 \u0627\u0644\u0639\u0645\u0648\u062f. \u064a\u062c\u0628 \u0627\u062e\u062a\u064a\u0627\u0631 \u062d\u0627\u0644\u0629 \u0627\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u064a\u0629 \u0644\u0647 \u062c\u0646\u0628\u064b\u0627 \u0625\u0644\u0649 \u062c\u0646\u0628 \u0645\u0639 \u0627\u0644\u0645\u062a\u0627\u0646\u0629 \u0648\u0627\u0644\u0643\u0644\u0627\u0644 \u0648\u0627\u0644\u0628\u064a\u0626\u0629. \u0641\u0642\u064a\u0645\u0629 \u0627\u0644\u0635\u0644\u0627\u062f\u0629 \u0627\u0644\u0639\u0627\u0644\u064a\u0629 \u0644\u064a\u0633\u062a \u0628\u062f\u064a\u0644\u064b\u0627 \u0639\u0646 \u062a\u0642\u064a\u064a\u0645 \u0645\u0642\u0637\u0639 \u0645\u064f\u0633\u0646\u0651\u0646 \u0623\u0648 \u0645\u0642\u0639\u062f \u0645\u062d\u0645\u0644 \u0623\u0648 \u0643\u062a\u0641 \u0645\u064f\u062c\u0647\u062f.<\/p>\n<p>\u062a\u0648\u0636\u062d \u0647\u0630\u0647 \u0627\u0644\u0623\u0645\u062b\u0644\u0629 \u0645\u0646\u0637\u0642 \u0627\u0644\u0627\u062e\u062a\u064a\u0627\u0631\u060c \u0648\u0644\u064a\u0633\u062a \u0645\u0634\u0627\u0631\u064a\u0639 \u0639\u0645\u0644\u0627\u0621 \u0645\u0643\u062a\u0645\u0644\u0629 \u0644\u0640 JUCHENG. \u0648\u0628\u0645\u062c\u0631\u062f \u0623\u0646 \u064a\u0628\u062f\u0648 \u0627\u0644\u0645\u0633\u0627\u0631 \u0627\u0644\u0623\u0648\u0633\u062a\u0646\u064a\u062a\u064a \u0627\u0644\u0639\u0627\u062f\u064a \u0645\u062c\u062f\u064a\u064b\u0627\u060c \u0641\u0625\u0646 <a href=\"https:\/\/www.jccncmachining.com\/ar\/%d8%b9%d8%b1%d8%b6\/%d8%aa%d8%b5%d9%86%d9%8a%d8%b9-%d8%a7%d9%84%d9%81%d9%88%d9%84%d8%a7%d8%b0-%d8%a7%d9%84%d9%85%d9%82%d8%a7%d9%88%d9%85-%d9%84%d9%84%d8%b5%d8%af%d8%a3-304\/\">\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u062a\u0634\u063a\u064a\u0644 304 \u0633\u062a\u0627\u0646\u0644\u0633 \u0633\u062a\u064a\u0644<\/a> \u062a\u0648\u0641\u0631 \u0633\u064a\u0627\u0642\u064b\u0627 \u062e\u0627\u0635\u064b\u0627 \u0628\u0627\u0644\u0645\u0627\u062f\u0629.<\/p>\n<\/section>\n<section id=\"exposure\">\n<h2>\u0627\u0643\u062a\u0628 \u0633\u062c\u0644 \u0627\u0644\u062a\u0639\u0631\u0636\u060c \u0648\u0644\u064a\u0633 \u0641\u0642\u0637 \u201c\u0645\u064f\u0633\u0628\u0650\u0651\u0628 \u0644\u0644\u062a\u0622\u0643\u0644\u201d<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-crevice-exposure-detail-1024x576.webp\" alt=\"Liquid retained beside gasket crevice\" class=\"size-large wp-image-2229 aligncenter\" \/>\n<strong srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-crevice-exposure-detail-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-crevice-exposure-detail-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-crevice-exposure-detail-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-crevice-exposure-detail-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-crevice-exposure-detail-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-crevice-exposure-detail.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\u0627\u0644\u062a\u0646\u0642\u0631<\/strong> \u0647\u0648 \u0647\u062c\u0648\u0645 \u0645\u0648\u0636\u0639\u064a \u0639\u0646\u062f \u0645\u0648\u0627\u0642\u0639 \u0633\u0637\u062d\u064a\u0629 \u0645\u062a\u0641\u0631\u0642\u0629. <strong>\u062a\u0622\u0643\u0644 \u0627\u0644\u0634\u0642\u0648\u0642<\/strong> \u064a\u062a\u0637\u0648\u0631 \u0641\u064a \u0645\u0633\u0627\u062d\u0627\u062a \u0636\u064a\u0642\u0629 \u062d\u064a\u062b \u064a\u0645\u0643\u0646 \u0623\u0646 \u062a\u062e\u062a\u0644\u0641 \u0627\u0644\u0643\u064a\u0645\u064a\u0627\u0621 \u0627\u0644\u0645\u062d\u0644\u064a\u0629 \u0639\u0646 \u0627\u0644\u0633\u0627\u0626\u0644 \u0627\u0644\u0643\u0644\u064a. \u0641\u0627\u0644\u0645\u0627\u062f\u0629 \u0627\u0644\u062a\u064a \u062a\u0624\u062f\u064a \u0623\u062f\u0627\u0621\u064b \u0645\u0642\u0628\u0648\u0644\u064b\u0627 \u0639\u0644\u0649 \u0648\u062c\u0647 \u0645\u0641\u062a\u0648\u062d \u0648\u0645\u0634\u0637\u0648\u0641 \u0642\u062f \u062a\u062a\u0635\u0631\u0641 \u0628\u0634\u0643\u0644 \u0645\u062e\u062a\u0644\u0641 \u062a\u062d\u062a \u062a\u0631\u0633\u0628 \u0623\u0648 \u062f\u0627\u062e\u0644 \u0648\u0635\u0644\u0629 \u0645\u062c\u0645\u0639\u0629.<\/p>\n<p>\u062a\u062d\u062f\u062f \u0625\u0631\u0634\u0627\u062f\u0627\u062a \u0627\u0644\u062a\u0622\u0643\u0644 \u0645\u0646 Outokumpu \u0627\u0644\u062a\u0639\u0631\u0636 \u0644\u0644\u0643\u0644\u0648\u0631\u064a\u062f \u0648\u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0631\u0627\u0631\u0629 \u0648\u0627\u0644\u0647\u0646\u062f\u0633\u0629 \u0627\u0644\u0645\u062d\u0644\u064a\u0629 \u0643\u0639\u0648\u0627\u0645\u0644 \u0630\u0627\u062a \u0635\u0644\u0629. \u0643\u0645\u0627 \u062a\u062d\u0630\u0631 \u0645\u0646 \u0623\u0646 \u0645\u0624\u0634\u0631 \u0645\u0642\u0627\u0648\u0645\u0629 \u0627\u0644\u062a\u0646\u0642\u0631 \u0627\u0644\u0645\u062d\u0633\u0648\u0628 \u0647\u0648 \u0645\u062c\u0631\u062f \u0625\u0634\u0627\u0631\u0629 \u0645\u0642\u0627\u0631\u0646\u0629\u060c \u0648\u0644\u064a\u0633 \u062a\u0646\u0628\u0624\u064b\u0627 \u0628\u0627\u0644\u0633\u0644\u0648\u0643 \u0641\u064a \u0628\u064a\u0626\u0629 \u0641\u0639\u0644\u064a\u0629. \u0648\u0647\u0630\u0627 \u0627\u0644\u062a\u0645\u064a\u064a\u0632 \u0623\u0647\u0645 \u0645\u0646 \u0625\u0639\u0644\u0627\u0646 \u062f\u0631\u062c\u0629 \u0648\u0627\u062d\u062f\u0629 \u201c\u0622\u0645\u0646\u0629 \u0628\u062d\u0631\u064a\u064b\u0627\u201d \u0639\u0627\u0644\u0645\u064a\u064b\u0627.\u201d<\/p>\n<ul>\n<li><strong>\u0627\u062a\u0635\u0627\u0644:<\/strong> \u063a\u0645\u0631 \u0645\u0633\u062a\u0645\u0631\u060c \u0623\u0648 \u0631\u0634 \u0639\u0631\u0636\u064a\u060c \u0623\u0648 \u062a\u0643\u0627\u062b\u0641\u060c \u0623\u0648 \u062e\u062f\u0645\u0629 \u062c\u0627\u0641\u0629\u061f<\/li>\n<li><strong>Chemistry:<\/strong> process liquid, cleaning agent, concentration and possible residues?<\/li>\n<li><strong>Temperature:<\/strong> steady operation plus cleaning and shutdown conditions?<\/li>\n<li><strong>\u0627\u0644\u0647\u0646\u062f\u0633\u0629:<\/strong> accessible surfaces, threads, gasket pockets and stagnant crevices?<\/li>\n<li><strong>Stress:<\/strong> applied load, assembly preload and relevant manufacturing stresses?<\/li>\n<\/ul>\n<p>316 generally improves resistance to pitting compared with 304, but sufficiently aggressive conditions may rule out both. 17-4 PH should not be treated as a corrosion upgrade over 316 simply because it can be stronger. The finished assembly may need a different alloy family or design change outside this three-grade shortlist.<\/p>\n<p>If 316 survives that screening, review the available <a href=\"https:\/\/www.jccncmachining.com\/ar\/%d8%b9%d8%b1%d8%b6\/%d8%aa%d8%b5%d9%86%d9%8a%d8%b9-%d8%a7%d9%84%d9%81%d9%88%d9%84%d8%a7%d8%b0-%d8%a7%d9%84%d9%85%d9%82%d8%a7%d9%88%d9%85-%d9%84%d9%84%d8%b5%d8%af%d8%a3-316\/\">316 machining options<\/a> and specify the exact grade. 316 and 316L are related but distinct designations; a low-carbon requirement must be explicit rather than assumed from a generic label.<\/p>\n<\/section>\n<section id=\"strength-route\">\n<h2>\u064a\u063a\u064a\u0651\u0631 17-4 PH \u0645\u0633\u0627\u0631 \u0627\u0644\u0642\u0648\u0629<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-controlled-aging-process-1024x576.webp\" alt=\"Stainless components on furnace tray\" class=\"size-large wp-image-2234 aligncenter\" \/>\n304 and 316 are austenitic stainless steels. They can strengthen through cold work, but do not use the same precipitation-hardening treatment as 17-4 PH. <strong srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-controlled-aging-process-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-controlled-aging-process-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-controlled-aging-process-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-controlled-aging-process-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-controlled-aging-process-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-controlled-aging-process.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>Precipitation hardening<\/strong> develops strengthening particles through a controlled aging treatment; the final condition determines the resulting balance of properties.<\/p>\n<div style=\"overflow-x: auto;\">\n<table>\n<caption>Selection questions that separate the three routes<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">\u0627\u0644\u0633\u0624\u0627\u0644<\/th>\n<th scope=\"col\">304<\/th>\n<th scope=\"col\">316<\/th>\n<th scope=\"col\">17-4 PH<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">\u0644\u0645\u0627\u0630\u0627 \u064a\u064f\u0646\u0638\u0631 \u0641\u064a\u0647\u061f<\/th>\n<td>General corrosion-resistant components with suitable mechanical requirements<\/td>\n<td>Greater localized-corrosion resistance where the actual exposure supports it<\/td>\n<td>Higher strength obtained through a specified aging condition<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">What must the material callout resolve?<\/th>\n<td>Product specification, stock condition and any low-carbon requirement<\/td>\n<td>Exact grade, stock condition and exposure compatibility<\/td>\n<td>Incoming condition, final aging condition and governing specification<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">What machining issue needs attention?<\/th>\n<td>Work hardening, chip control and surface integrity<\/td>\n<td>Operation-specific cutting behavior and finish requirements<\/td>\n<td>Cutting response in the actual condition and the placement of heat treatment in the route<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">What must not be assumed?<\/th>\n<td>That all environments are mild enough for 304<\/td>\n<td>That added corrosion resistance makes it a hardened wear material<\/td>\n<td>That higher hardness guarantees toughness or corrosion suitability<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>For 17-4 PH, conditions such as H900 and H1150 represent different property balances. The number is not a hardness value. In Carpenter Technology&#8217;s Custom 630 reference data, higher-temperature aging conditions trade some strength for increased ductility and impact performance. Apply the qualified material specification, not a marketing comparison, when selecting that balance.<\/p>\n<p>\u062a\u0645\u062a\u0644\u0643 \u0645\u0646\u0634\u0623\u062a\u0646\u0627 \u0627\u0644\u062a\u064a \u062a\u0628\u0644\u063a \u0645\u0633\u0627\u062d\u062a\u0647\u0627 <a href=\"https:\/\/www.jccncmachining.com\/ar\/%d8%b9%d8%b1%d8%b6\/%d8%aa%d8%b5%d9%86%d9%8a%d8%b9-17-4-ph\/\">17-4 PH machining information<\/a> is the relevant material route when strength drives the choice. Do not omit the final heat-treatment condition merely because the purchase order already names 17-4 PH.<\/p>\n<\/section>\n<section id=\"machining-state\">\n<h2>\u0627\u062e\u062a\u0631 \u0645\u062a\u0649 \u062a\u064f\u0635\u0646\u0639 \u0627\u0644\u0623\u0628\u0639\u0627\u062f \u0627\u0644\u0646\u0647\u0627\u0626\u064a\u0629<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-finish-machining-sequence-1024x576.webp\" alt=\"Rough and finished stainless shafts\" class=\"size-large wp-image-2231 aligncenter\" \/>\nThere is more than one sensible sequence. Machine in an appropriate incoming condition and age later; purchase material in the required aged condition and machine it; or rough-machine, heat-treat and finish critical features afterward. Selection depends on feature access, stock availability, tool wear, dimensional change and the required final condition.\n\n\n<h3 srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-finish-machining-sequence-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-finish-machining-sequence-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-finish-machining-sequence-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-finish-machining-sequence-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-finish-machining-sequence-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-finish-machining-sequence.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>Small proportional movement can consume a fit allowance<\/h3>\n<p>Carpenter&#8217;s Custom 630 data sheet reports approximately 0.0004\u20130.0006 length\/length contraction when Condition A material is hardened to H900. Applied to a hypothetical 100 mm length, that corresponds to about 0.04\u20130.06 mm. This is an illustrative calculation from supplier reference data, not a guaranteed prediction for a particular part.<\/p>\n<p>The practical lesson is not to add that number blindly to every dimension. Different geometries and process histories can also introduce shape changes. Instead, decide which dimensions need a finishing allowance, which datums remain usable and where inspection belongs after treatment.<\/p>\n<p>Tooling decisions also depend on condition. A claim that 17-4 PH always machines best before aging is too broad. Evaluate the supplier&#8217;s guidance for the actual material and operation. For 304 and 316, avoid treating rubbing or dwelling as a harmless finishing strategy: work-hardened surfaces and poor chip evacuation can disrupt the next cut.<\/p>\n<p>Keep the route specific. \u201cFinish after heat treatment\u201d should identify the bearing seat, bore or datum face involved, how the part will be located again, and how much material remains. It should not be an unexplained note added after the first batch moves out of tolerance.<\/p>\n<\/section>\n<section id=\"acceptance\">\n<h2>\u0623\u0631\u0628\u0639\u0629 \u0623\u062f\u0644\u0629 \u0639\u0646\u062f \u0627\u0644\u0642\u0628\u0648\u0644<\/h2>\n<p><img decoding=\"async\" width=\"1024\" height=\"576\" loading=\"lazy\" src=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-acceptance-evidence-1024x576.webp\" alt=\"Stainless inspection and traceability tools\" class=\"size-large wp-image-2232 aligncenter\" \/>\nA dimensionally correct part can still be the wrong material or condition. A valid material certificate can accompany a part whose functional bore is wrong. The inspection package needs to distinguish these separate claims.\n\n\n<div style=\"overflow-x: auto;\" srcset=\"https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-acceptance-evidence-1024x576.webp 1024w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-acceptance-evidence-300x169.webp 300w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-acceptance-evidence-768x432.webp 768w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-acceptance-evidence-1536x864.webp 1536w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-acceptance-evidence-800x450.webp 800w, https:\/\/www.jccncmachining.com\/wp-content\/uploads\/2026\/09\/stainless-acceptance-evidence.webp 1600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\n<table>\n<caption>Match the evidence to the requirement<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">\u0627\u0644\u062f\u0644\u064a\u0644<\/th>\n<th scope=\"col\">What it supports<\/th>\n<th scope=\"col\">What it does not establish by itself<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Material documentation and traceability<\/th>\n<td>Connection between supplied stock, grade and the relevant lot<\/td>\n<td>Final dimensions or completion of every subsequent process<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Heat-treatment record, where required<\/th>\n<td>The specified treatment and traceable processing history<\/td>\n<td>All final mechanical properties or dimensional acceptance<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Hardness verification, where specified<\/th>\n<td>A measured result at an agreed location using an appropriate method<\/td>\n<td>Complete proof of toughness, corrosion behavior or alloy identity<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Final dimensional and surface inspection<\/th>\n<td>Conformity of the specified features in the agreed delivered condition<\/td>\n<td>Material chemistry or suitability for an unlisted environment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Use JUCHENG&#8217;s <a href=\"https:\/\/www.jccncmachining.com\/ar\/%d8%ad%d9%88%d9%84\/%d8%ac%d9%88%d8%af%d8%a9\/\">quality inspection information<\/a> as a starting point for agreeing the actual deliverables. The quotation should identify what is included; do not assume every possible test is standard.<\/p>\n<p>Cleaning, deburring and any specified passivation or electropolishing are also part of the delivered condition. Passivation is not a hardening treatment and does not rescue an unsuitable alloy choice. A treatment record cannot replace inspection of a sealing surface damaged during handling.<\/p>\n<\/section>\n<section id=\"substitutions\">\n<h2>\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0627\u0633\u062a\u0628\u062f\u0627\u0644 \u0627\u0644\u062a\u064a \u064a\u0633\u062a\u062d\u0642 \u062d\u0633\u0645\u0647\u0627 \u0645\u0628\u0643\u0631\u064b\u0627<\/h2>\n<h3>Can 316 replace 17-4 PH if the geometry is unchanged?<\/h3>\n<p>Only after the design authority approves the change. A corrosion-related advantage does not establish equivalent yield strength, wear behavior or fatigue performance. Review the load-bearing and mating features before accepting the substitute.<\/p>\n<h3>Does a magnet identify the correct grade?<\/h3>\n<p>No. Magnetic response alone is not a reliable grade-identification method. Processing can influence the response of austenitic stainless, and multiple stainless families are magnetic. Use the specified identification and traceability controls instead.<\/p>\n<h3>Should every 17-4 PH part be delivered in H900?<\/h3>\n<p>No. Select the final condition from the functional requirements and governing specification. A condition chosen solely for maximum hardness may be inappropriate where toughness, environment or subsequent processing controls the design.<\/p>\n<p>Close the review with two decisions: the alloy and condition that satisfy service, and the manufacturing sequence that can deliver them with the required geometry. Neither decision should be left for the receiving inspector to infer.<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>Put a washdown housing, a dry locating block and a heavily loaded shaft on the same drawing-review table. All may need stainless steel, but they do not need it for the same reason. 304 is a candidate for general corrosion-resistant duties; 316 adds resistance to localized corrosion in some more demanding environments; 17-4 PH offers [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2230,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2206","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/posts\/2206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/comments?post=2206"}],"version-history":[{"count":8,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/posts\/2206\/revisions"}],"predecessor-version":[{"id":2235,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/posts\/2206\/revisions\/2235"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/media\/2230"}],"wp:attachment":[{"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/media?parent=2206"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/categories?post=2206"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jccncmachining.com\/ar\/wp-json\/wp\/v2\/tags?post=2206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}