{"id":4008,"date":"2024-06-29T15:49:00","date_gmt":"2024-06-29T15:49:00","guid":{"rendered":"https:\/\/machining-quote.com\/?p=4008"},"modified":"2024-07-09T09:34:35","modified_gmt":"2024-07-09T09:34:35","slug":"440-stainless-steel-vs-304","status":"publish","type":"post","link":"https:\/\/machining-quote.com\/zh\/bolg\/440-stainless-steel-vs-304\/","title":{"rendered":"440 \u4e0d\u9508\u94a2\u4e0e 304 \u4e0d\u9508\u94a2\uff1a\u60a8\u9700\u8981\u4e86\u89e3\u7684\u4e00\u5207"},"content":{"rendered":"<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li><a href=\"#ss420-and-ss304-which-is-better\">SS420 \u548c SS304\uff1a\u54ea\u4e2a\u66f4\u597d\uff1f<\/a><\/li>\n<li><a href=\"#disadvantages-and-advantages-of-using-304-vs-440-stainless-steel\">\u4f7f\u7528 304 \u548c 440 \u4e0d\u9508\u94a2\u7684\u7f3a\u70b9\u548c\u4f18\u70b9<\/a><\/li>\n<li><a href=\"#applications-where-to-use-440-vs-304-stainless-steel\">\u5e94\u7528\uff1a440 \u4e0d\u9508\u94a2\u4e0e 304 \u4e0d\u9508\u94a2\u7684\u7528\u9014<\/a><\/li>\n<li><a href=\"#corrosion-resistance-440-stainless-steel-vs-304\">\u8010\u8150\u8680\u6027\uff1a440 \u4e0d\u9508\u94a2\u4e0e 304<\/a><\/li>\n<li><a href=\"#composition-differences-between-440-and-304-stainless-steel\">440 \u548c 304 \u4e0d\u9508\u94a2\u7684\u6210\u5206\u5dee\u5f02<\/a><\/li>\n<li><a href=\"#mechanical-properties-comparing-440-and-304-stainless-steel\">\u673a\u68b0\u6027\u80fd\uff1a440 \u548c 304 \u4e0d\u9508\u94a2\u7684\u6bd4\u8f83<\/a><\/li>\n<li><a href=\"#machinability-and-formability-440-vs-304-stainless-steel\">\u53ef\u52a0\u5de5\u6027\u548c\u53ef\u6210\u5f62\u6027\uff1a440 \u4e0d\u9508\u94a2\u4e0e 304 \u4e0d\u9508\u94a2<\/a><\/li>\n<li><a href=\"#heat-treatment-processes-for-440-and-304-stainless-steel\">440 \u548c 304 \u4e0d\u9508\u94a2\u7684\u70ed\u5904\u7406\u5de5\u827a<\/a><\/li>\n<li><a href=\"#summary-chart-of-what-is-the-difference-between-304-and-420-stainless-steel\">304 \u548c 440 \u4e0d\u9508\u94a2\u4e4b\u95f4\u7684\u5dee\u5f02\u603b\u7ed3\u8868<\/a><\/li>\n<li><a href=\"#conclusion\">\u7ed3\u8bba<\/a><\/li>\n<\/ul>\n<p>\u201c440 \u4e0e 304 \u4e0d\u9508\u94a2\uff1a\u63ed\u79d8\u8010\u7528\u6027\u3001\u6027\u80fd\u548c\u5e94\u7528\u201d<\/p>\n<p>440 \u4e0d\u9508\u94a2\u548c 304 \u4e0d\u9508\u94a2\u662f\u5236\u9020\u4ece\u53a8\u623f\u7528\u5177\u5230\u5de5\u4e1a\u673a\u68b0\u7b49\u5404\u79cd\u4ea7\u54c1\u6700\u5e38\u7528\u7684\u4e24\u79cd\u6750\u6599\u3002\u6bcf\u79cd\u7c7b\u578b\u7684\u4e0d\u9508\u94a2\u90fd\u5177\u6709\u4e00\u7ec4\u72ec\u7279\u7684\u7279\u6027\u548c\u4f18\u70b9\uff0c\u4f7f\u5176\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u5e94\u7528\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u73af\u5883\u6761\u4ef6\u3001\u673a\u68b0\u8981\u6c42\u548c\u6210\u672c\u8003\u8651\u3002\u4e86\u89e3 440 \u548c 304 \u4e0d\u9508\u94a2\u4e4b\u95f4\u7684\u5dee\u5f02\u5bf9\u4e8e\u9009\u62e9\u9002\u5408\u7279\u5b9a\u5e94\u7528\u7684\u6750\u6599\u3001\u786e\u4fdd\u8010\u7528\u6027\u3001\u529f\u80fd\u6027\u548c\u6210\u672c\u6548\u76ca\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u63a2\u8ba8\u4e86 440 \u548c 304 \u4e0d\u9508\u94a2\u4e4b\u95f4\u7684\u5173\u952e\u7279\u6027\u3001\u5e94\u7528\u548c\u5dee\u5f02\uff0c\u4ee5\u5168\u9762\u4e86\u89e3\u8fd9\u4e24\u79cd\u6750\u6599\u3002<\/p>\n<h2 id=\"ss420-and-ss304-which-is-better\">SS420 \u548c SS304\uff1a\u54ea\u4e2a\u66f4\u597d\uff1f<\/h2>\n<h3>440\u4e0d\u9508\u94a2\u7279\u6027<\/h3>\n<p>440 \u4e0d\u9508\u94a2\uff0c\u901a\u5e38\u79f0\u4e3a 440C\uff0c\u662f\u4e00\u79cd\u9ad8\u78b3\u9a6c\u6c0f\u4f53\u4e0d\u9508\u94a2\uff0c\u4ee5\u5176\u9ad8\u5f3a\u5ea6\u3001\u4e2d\u7b49\u8010\u8150\u8680\u6027\u4ee5\u53ca\u51fa\u8272\u7684\u786c\u5ea6\u548c\u8010\u78e8\u6027\u800c\u95fb\u540d\u3002440 \u4e0d\u9508\u94a2\u4e2d\u8f83\u9ad8\u7684\u78b3\u542b\u91cf\u53ef\u901a\u8fc7\u70ed\u5904\u7406\u663e\u7740\u63d0\u9ad8\u786c\u5ea6\u548c\u5f3a\u5ea6\u3002\u8fd9\u4f7f\u5f97\u5b83\u7279\u522b\u9002\u5408\u9700\u8981\u950b\u5229\u8010\u7528\u5200\u5203\u7684\u5e94\u7528\uff0c\u4f8b\u5982\u5200\u5177\u3001\u5207\u524a\u5de5\u5177\u548c\u624b\u672f\u5668\u68b0\u3002\u7136\u800c\uff0c\u4e0e\u4f4e\u78b3\u7b49\u7ea7\u76f8\u6bd4\uff0c\u8fd9\u79cd\u786c\u5ea6\u7684\u589e\u52a0\u662f\u4ee5\u964d\u4f4e\u8010\u8150\u8680\u6027\u4e3a\u4ee3\u4ef7\u7684\uff0c\u8fd9\u4f7f\u5f97\u5b83\u4e0d\u592a\u9002\u5408\u5728\u9ad8\u8150\u8680\u73af\u5883\u4e2d\u4f7f\u7528\u3002<\/p>\n<h3>304\u4e0d\u9508\u94a2\u7279\u6027<\/h3>\n<p>\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u5c5e\u4e8e\u5965\u6c0f\u4f53\u7cfb\u5217\u7684 304 \u4e0d\u9508\u94a2\u4ee5\u5176\u51fa\u8272\u7684\u8010\u8150\u8680\u6027\u548c\u975e\u51e1\u7684\u53ef\u6210\u5f62\u6027\u800c\u95fb\u540d\u3002304 \u4e0d\u9508\u94a2\u7531 18% \u94ec\u548c 8% \u954d\u7ec4\u6210\uff0c\u65e0\u9700\u70ed\u5904\u7406\u5373\u53ef\u63d0\u4f9b\u5f3a\u5ea6\u548c\u8010\u8150\u8680\u6027\u7684\u5e73\u8861\u7ec4\u5408\u3002\u8be5\u7b49\u7ea7\u7528\u9014\u5e7f\u6cdb\uff0c\u5e38\u7528\u4e8e\u53a8\u623f\u8bbe\u5907\u3001\u6c7d\u8f66\u96f6\u4ef6\u548c\u5efa\u7b51\u5143\u7d20\u3002\u8f83\u4f4e\u7684\u78b3\u542b\u91cf\u4e5f\u4f7f 304 \u4e0d\u9508\u94a2\u6bd4 440 \u66f4\u5177\u5ef6\u5c55\u6027\uff0c\u4f7f\u5176\u80fd\u591f\u5f62\u6210\u5404\u79cd\u5f62\u72b6\u548c\u5c3a\u5bf8\u800c\u4e0d\u4f1a\u635f\u5bb3\u5176\u7ed3\u6784\u5b8c\u6574\u6027\u3002<\/p>\n<h3>\u9009\u62e9\u5408\u9002\u7684\u94a2\u6750<\/h3>\n<p>440 \u548c 304 \u4e0d\u9508\u94a2\u4e4b\u95f4\u7684\u9009\u62e9\u6700\u7ec8\u53d6\u51b3\u4e8e\u5e94\u7528\u7684\u5177\u4f53\u8981\u6c42\u3002\u5bf9\u4e8e\u5f3a\u5ea6\u548c\u786c\u5ea6\u81f3\u5173\u91cd\u8981\u4e14\u8150\u8680\u95ee\u9898\u8f83\u5c11\u7684\u73af\u5883\uff0c440 \u4e0d\u9508\u94a2\u65e0\u7591\u662f\u6700\u4f73\u9009\u62e9\u3002\u5b83\u5728\u6076\u52a3\u6761\u4ef6\u4e0b\u4fdd\u6301\u950b\u5229\u8fb9\u7f18\u7684\u80fd\u529b\u4f7f\u5176\u6210\u4e3a\u5236\u9020\u9ad8\u8d28\u91cf\u5200\u7247\u548c\u5de5\u5177\u4e0d\u53ef\u6216\u7f3a\u7684\u6750\u6599\u3002<\/p>\n<p>\u76f8\u53cd\uff0c\u5bf9\u4e8e\u9700\u8981\u66f4\u9ad8\u8010\u8150\u8680\u6027\u548c\u53ef\u6210\u5f62\u6027\u7684\u5e94\u7528\uff0c304 \u4e0d\u9508\u94a2\u662f\u9996\u9009\u3002\u5b83\u5bf9\u5404\u79cd\u5316\u5b66\u54c1\u548c\u5927\u6c14\u6761\u4ef6\u5177\u6709\u8010\u53d7\u6027\uff0c\u518d\u52a0\u4e0a\u6613\u4e8e\u5236\u9020\uff0c\u4f7f\u5176\u9002\u7528\u4e8e\u4ece\u5bb6\u7528\u7535\u5668\u5230\u5de5\u4e1a\u8bbe\u5907\u7684\u5e7f\u6cdb\u5e94\u7528\u3002\u6b64\u5916\uff0c304 \u4e0d\u9508\u94a2\u56e0\u5176\u660e\u4eae\u3001\u6613\u4e8e\u7ef4\u62a4\u7684\u8868\u9762\u800c\u5177\u6709\u7f8e\u611f\uff0c\u4f7f\u5176\u6210\u4e3a\u88c5\u9970\u548c\u5efa\u7b51\u5e94\u7528\u7684\u70ed\u95e8\u9009\u62e9\u3002<\/p>\n<h2 id=\"disadvantages-and-advantages-of-using-304-vs-440-stainless-steel\">\u4f7f\u7528 304 \u548c 440 \u4e0d\u9508\u94a2\u7684\u7f3a\u70b9\u548c\u4f18\u70b9<\/h2>\n<h3>304 \u4e0d\u9508\u94a2\u7684\u4f18\u52bf<\/h3>\n<ul>\n<li>\u5353\u8d8a\u7684\u8010\u8150\u8680\u6027<\/li>\n<li>\u5353\u8d8a\u7684\u591a\u529f\u80fd\u6027\u548c\u53ef\u6210\u578b\u6027<\/li>\n<li>\u975e\u78c1\u6027<\/li>\n<li>\u6613\u4e8e\u5236\u9020\u548c\u710a\u63a5<\/li>\n<\/ul>\n<h3>304 \u4e0d\u9508\u94a2\u7684\u7f3a\u70b9<\/h3>\n<ul>\n<li>\u4e0d\u9002\u5408\u9ad8\u6e29\u73af\u5883\uff08800\u00b0F \u4ee5\u4e0a\uff09<\/li>\n<li>\u4e0e 440 \u4e0d\u9508\u94a2\u76f8\u6bd4\uff0c\u786c\u5ea6\u548c\u8010\u78e8\u6027\u8f83\u4f4e<\/li>\n<\/ul>\n<h3>440\u4e0d\u9508\u94a2\u7684\u4f18\u52bf<\/h3>\n<ul>\n<li>\u4f18\u5f02\u7684\u786c\u5ea6\u548c\u8010\u78e8\u6027<\/li>\n<li>\u975e\u5e38\u9002\u5408\u9ad8\u538b\u529b\u5e94\u7528<\/li>\n<li>\u53ef\u8fdb\u884c\u70ed\u5904\u7406\u4ee5\u589e\u52a0\u5f3a\u5ea6<\/li>\n<\/ul>\n<h3>440\u4e0d\u9508\u94a2\u7684\u7f3a\u70b9<\/h3>\n<ul>\n<li>\u4e0e 304 \u4e0d\u9508\u94a2\u76f8\u6bd4\uff0c\u8010\u8150\u8680\u6027\u8f83\u4f4e<\/li>\n<li>\u52a0\u5de5\u548c\u5236\u9020\u66f4\u5177\u6311\u6218\u6027<\/li>\n<\/ul>\n<h2 id=\"applications-where-to-use-440-vs-304-stainless-steel\">\u5e94\u7528\uff1a440 \u4e0d\u9508\u94a2\u4e0e 304 \u4e0d\u9508\u94a2\u7684\u7528\u9014<\/h2>\n<h3>304 \u4e0d\u9508\u94a2\u7684\u5e94\u7528<\/h3>\n<ul>\n<li>\u53a8\u623f\u7528\u5177\u548c\u708a\u5177<\/li>\n<li>\u5efa\u7b51\u9576\u677f\u548c\u88c5\u9970<\/li>\n<li>\u6c7d\u8f66\u548c\u822a\u7a7a\u822a\u5929\u90e8\u4ef6<\/li>\n<li>\u533b\u7597\u5668\u68b0\u548c\u98df\u54c1\u52a0\u5de5\u8bbe\u5907<\/li>\n<\/ul>\n<h3>440 \u4e0d\u9508\u94a2\u7684\u5e94\u7528<\/h3>\n<ul>\n<li>\u5207\u5272\u5de5\u5177\u548c\u5200\u5177<\/li>\n<li>\u624b\u672f\u5668\u68b0<\/li>\n<li>\u8f74\u627f\u548c\u5176\u4ed6\u9ad8\u5e94\u529b\u90e8\u4ef6<\/li>\n<\/ul>\n<h2 id=\"corrosion-resistance-440-stainless-steel-vs-304\">\u8010\u8150\u8680\u6027\uff1a440 \u4e0d\u9508\u94a2\u4e0e 304<\/h2>\n<h3>304 \u4e0d\u9508\u94a2\u8010\u8150\u8680\u6027<\/h3>\n<p>304 \u4e0d\u9508\u94a2\u53c8\u79f0\u4e3a 18\/8 \u4e0d\u9508\u94a2\uff0c\u56e0\u4e3a\u5176\u6210\u5206\u7ea6\u4e3a 18% \u94ec\u548c 8% \u954d\uff0c\u4ee5\u5176\u51fa\u8272\u7684\u8010\u8150\u8680\u6027\u800c\u95fb\u540d\u3002\u8fd9\u79cd\u5408\u91d1\u662f\u4e00\u79cd\u5965\u6c0f\u4f53\u4e0d\u9508\u94a2\uff0c\u8fd9\u610f\u5473\u7740\u4e0e\u5176\u4ed6\u7c7b\u578b\u7684\u4e0d\u9508\u94a2\u76f8\u6bd4\uff0c\u5b83\u542b\u6709\u9ad8\u542b\u91cf\u7684\u94ec\u548c\u954d\u3002\u8fd9\u4e9b\u5143\u7d20\u7684\u5b58\u5728\u4fc3\u8fdb\u4e86\u94a2\u8868\u9762\u5f62\u6210\u4e00\u5c42\u949d\u5316\u6c27\u5316\u94ec\u5c42\uff0c\u8d77\u5230\u4e86\u9632\u8150\u8680\u7684\u4f5c\u7528\u3002\u8fd9\u79cd\u4fdd\u62a4\u5c42\u5728\u5404\u79cd\u73af\u5883\u4e2d\u90fd\u975e\u5e38\u6709\u6548\uff0c\u7279\u522b\u662f\u5728\u8150\u8680\u6027\u8f83\u4f4e\u7684\u6761\u4ef6\u4e0b\u3002<\/p>\n<h3>440\u4e0d\u9508\u94a2\u8010\u8150\u8680\u6027<\/h3>\n<p>\u53e6\u4e00\u65b9\u9762\uff0c440 \u4e0d\u9508\u94a2\u5c5e\u4e8e\u9a6c\u6c0f\u4f53\u7c7b\u578b\uff0c\u4e0e 304 \u76f8\u6bd4\uff0c\u5176\u78b3\u542b\u91cf\u66f4\u9ad8\u3002440 \u4e0d\u9508\u94a2\u7684\u5178\u578b\u7b49\u7ea7\uff08440A\u3001440B \u548c 440C\uff09\u4e3b\u8981\u5728\u78b3\u542b\u91cf\u65b9\u9762\u6709\u6240\u4e0d\u540c\uff1b440C \u7684\u78b3\u542b\u91cf\u6700\u9ad8\uff0c\u56e0\u6b64\uff0c\u5176\u786c\u5ea6\u548c\u8010\u78e8\u6027\u5728\u8fd9\u4e09\u79cd\u4e0d\u9508\u94a2\u4e2d\u6700\u9ad8\u3002\u7136\u800c\uff0c440 \u4e0d\u9508\u94a2\u7b49\u7ea7\u4e2d\u8f83\u9ad8\u7684\u78b3\u542b\u91cf\u901a\u5e38\u610f\u5473\u7740\u8fd9\u4e9b\u5408\u91d1\u6bd4 304 \u4e0d\u9508\u94a2\u66f4\u5bb9\u6613\u53d7\u5230\u8150\u8680\u3002\u8fd9\u79cd\u654f\u611f\u6027\u662f\u7531\u4e8e\u6bcf\u5355\u4f4d\u78b3\u4e2d\u7684\u94ec\u542b\u91cf\u8f83\u4f4e\uff0c\u5e76\u4e14\u6ca1\u6709\u954d\uff0c\u4ece\u800c\u964d\u4f4e\u4e86\u5f62\u6210\u949d\u5316\u6c27\u5316\u94ec\u5c42\u7684\u80fd\u529b\u3002<\/p>\n<h2 id=\"composition-differences-between-440-and-304-stainless-steel\">440 \u548c 304 \u4e0d\u9508\u94a2\u7684\u6210\u5206\u5dee\u5f02<\/h2>\n<h3>304 \u4e0d\u9508\u94a2\u6210\u5206<\/h3>\n<ul>\n<li>\u94ec\uff1a18%<\/li>\n<li>\u954d\uff1a8%<\/li>\n<li>\u78b3\uff1a&lt;0.08%<\/li>\n<\/ul>\n<h3>440 \u4e0d\u9508\u94a2\u6210\u5206<\/h3>\n<ul>\n<li>\u94ec\uff1a 16-18%<\/li>\n<li>\u78b3\uff1a 0.6-1.2%<\/li>\n<li>\u954d\uff1a0%<\/li>\n<\/ul>\n<h2 id=\"mechanical-properties-comparing-440-and-304-stainless-steel\">\u673a\u68b0\u6027\u80fd\uff1a440 \u548c 304 \u4e0d\u9508\u94a2\u7684\u6bd4\u8f83<\/h2>\n<table border=\"1\">\n<tbody>\n<tr>\n<th>\u7269\u4e1a<\/th>\n<th>440 \u4e0d\u9508\u94a2<\/th>\n<th>304 \u4e0d\u9508\u94a2<\/th>\n<\/tr>\n<tr>\n<td>\u786c\u5ea6<\/td>\n<td>\u66f4\u9ad8<\/td>\n<td>\u8f83\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>\u62c9\u4f38\u5f3a\u5ea6<\/td>\n<td>\u66f4\u9ad8<\/td>\n<td>\u8f83\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>\u8010\u8150\u8680\u6027<\/td>\n<td>\u8f83\u4f4e<\/td>\n<td>\u66f4\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u6210\u578b\u6027<\/td>\n<td>\u8f83\u4f4e<\/td>\n<td>\u66f4\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u673a\u68b0\u52a0\u5de5\u6027\u80fd<\/td>\n<td>\u66f4\u5177\u6311\u6218\u6027<\/td>\n<td>\u66f4\u5bb9\u6613<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"machinability-and-formability-440-vs-304-stainless-steel\">\u53ef\u52a0\u5de5\u6027\u548c\u53ef\u6210\u5f62\u6027\uff1a440 \u4e0d\u9508\u94a2\u4e0e 304 \u4e0d\u9508\u94a2<\/h2>\n<h3>\u673a\u68b0\u52a0\u5de5\u6027\u80fd<\/h3>\n<p>440 \u4e0d\u9508\u94a2\u5c5e\u4e8e 440 \u7cfb\u5217\u9a6c\u6c0f\u4f53\u9ad8\u78b3\u4e0d\u9508\u94a2\uff0c\u901a\u5e38\u5305\u62ec 440A\u3001440B \u548c 440C \u7b49\u7b49\u7ea7\uff0c\u5176\u4e2d 440C \u7684\u786c\u5ea6\u6700\u9ad8\u3002\u8fd9\u79cd\u9ad8\u78b3\u542b\u91cf\u8d4b\u4e88\u94a2\u6750\u66f4\u9ad8\u7684\u5f3a\u5ea6\u548c\u8010\u78e8\u6027\uff0c\u6709\u5229\u4e8e\u751f\u4ea7\u5207\u524a\u5de5\u5177\u548c\u8010\u7528\u90e8\u4ef6\u3002\u7136\u800c\uff0c\u540c\u6837\u7684\u7279\u6027\u4e5f\u4f7f\u5f97 440 \u4e0d\u9508\u94a2\u901a\u5e38\u6bd4 304 \u4e0d\u9508\u94a2\u66f4\u96be\u52a0\u5de5\u3002440 \u94a2\u7684\u786c\u5ea6\u66f4\u9ad8\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u66f4\u5bb9\u6613\u78e8\u635f\u5207\u524a\u5de5\u5177\uff0c\u5e76\u4e14\u9700\u8981\u66f4\u575a\u56fa\u7684\u52a0\u5de5\u8bbe\u5907\u6216\u7279\u5b9a\u7684\u52a0\u5de5\u6280\u672f\u624d\u80fd\u6709\u6548\u5730\u5bf9\u5176\u8fdb\u884c\u6210\u578b\u3002<\/p>\n<h3>\u6210\u578b\u6027<\/h3>\n<p>\u53e6\u4e00\u65b9\u9762\uff0c304 \u4e0d\u9508\u94a2\u5c5e\u4e8e\u5965\u6c0f\u4f53\uff0c\u56e0\u5176\u78b3\u542b\u91cf\u8f83\u4f4e\u3001\u94ec\u548c\u954d\u542b\u91cf\u8f83\u9ad8\u800c\u5177\u6709\u51fa\u8272\u7684\u6210\u5f62\u6027\u548c\u53ef\u710a\u6027\u3002\u8fd9\u79cd\u6210\u5206\u4e0d\u4ec5\u4f7f 304 \u4e0d\u9508\u94a2\u4e0d\u6613\u8150\u8680\uff0c\u800c\u4e14\u5728\u673a\u68b0\u52a0\u5de5\u8fc7\u7a0b\u4e2d\u4e5f\u66f4\u5bb9\u6613\u52a0\u5de5\u3002\u5b83\u6bd4 440 \u4e0d\u9508\u94a2\u66f4\u8f6f\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4e0d\u4f1a\u5f88\u5feb\u78e8\u635f\u5207\u524a\u5de5\u5177\uff0c\u4ece\u800c\u53ef\u4ee5\u8fdb\u884c\u66f4\u7b80\u5355\u3001\u66f4\u7ecf\u6d4e\u7684\u52a0\u5de5\u3002\u8fd9\u5728\u9700\u8981\u5927\u91cf\u6210\u5f62\u548c\u710a\u63a5\u7684\u5e94\u7528\u4e2d\u5c24\u5176\u6709\u76ca\uff0c\u4f7f 304 \u4e0d\u9508\u94a2\u6210\u4e3a\u98df\u54c1\u52a0\u5de5\u548c\u5236\u836f\u7b49\u884c\u4e1a\u7684\u9996\u9009\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u884c\u4e1a\u7684\u6e05\u6d01\u5ea6\u548c\u6613\u4e8e\u5236\u9020\u90fd\u662f\u4f18\u5148\u8003\u8651\u7684\u56e0\u7d20\u3002<\/p>\n<h2 id=\"heat-treatment-processes-for-440-and-304-stainless-steel\">440 \u548c 304 \u4e0d\u9508\u94a2\u7684\u70ed\u5904\u7406\u5de5\u827a<\/h2>\n<h3>440\u4e0d\u9508\u94a2\u70ed\u5904\u7406<\/h3>\n<p>440 \u4e0d\u9508\u94a2\u4ee5\u9ad8\u78b3\u542b\u91cf\u800c\u95fb\u540d\uff0c\u88ab\u5f52\u7c7b\u4e3a\u9a6c\u6c0f\u4f53\u5408\u91d1\uff0c\u56e0\u5176\u5f3a\u5ea6\u548c\u786c\u5ea6\u800c\u95fb\u540d\u3002440 \u4e0d\u9508\u94a2\u7684\u70ed\u5904\u7406\u5de5\u827a\u901a\u5e38\u5305\u62ec\u5c06\u94a2\u52a0\u70ed\u5230 925-1065\u00b0C \u7684\u6e29\u5ea6\u8303\u56f4\uff0c\u7136\u540e\u8fdb\u884c\u6dec\u706b\uff0c\u5373\u4f7f\u7528\u7a7a\u6c14\u6216\u6cb9\u8fdb\u884c\u5feb\u901f\u51b7\u5374\u3002\u8fd9\u79cd\u6dec\u706b\u8fc7\u7a0b\u81f3\u5173\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u5c06\u94a2\u8f6c\u53d8\u4e3a\u9a6c\u6c0f\u4f53\uff0c\u4e00\u79cd\u975e\u5e38\u575a\u786c\u7684\u6676\u4f53\u7ed3\u6784\u3002\u6dec\u706b\u540e\uff0c440 \u4e0d\u9508\u94a2\u8981\u8fdb\u884c\u56de\u706b\uff0c\u5373\u6839\u636e\u6240\u9700\u7684\u786c\u5ea6\u6c34\u5e73\u5c06\u94a2\u91cd\u65b0\u52a0\u70ed\u5230\u8f83\u4f4e\u7684\u6e29\u5ea6\uff0c\u901a\u5e38\u5728 150-370\u00b0C \u4e4b\u95f4\u3002\u56de\u706b\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u7ed9\u539f\u672c\u6613\u788e\u7684\u9a6c\u6c0f\u4f53\u7ed3\u6784\u5e26\u6765\u4e00\u5b9a\u7a0b\u5ea6\u7684\u97e7\u6027\u3002<\/p>\n<h3>304\u4e0d\u9508\u94a2\u70ed\u5904\u7406<\/h3>\n<p>\u76f8\u6bd4\u4e4b\u4e0b\uff0c304 \u4e0d\u9508\u94a2\u5c5e\u4e8e\u5965\u6c0f\u4f53\u7c7b\u578b\uff0c\u4ee5\u5176\u51fa\u8272\u7684\u8010\u8150\u8680\u6027\u548c\u5ef6\u5c55\u6027\u800c\u95fb\u540d\u3002304 \u4e0d\u9508\u94a2\u7684\u70ed\u5904\u7406\u4e0e 440 \u4e0d\u9508\u94a2\u6709\u5f88\u5927\u4e0d\u540c\uff0c\u56e0\u4e3a 304 \u4e0d\u9508\u94a2\u7684\u78b3\u542b\u91cf\u8f83\u4f4e\uff0c\u800c\u94ec\u548c\u954d\u542b\u91cf\u8f83\u9ad8\u3002\u4e0e 440 \u4e0d\u540c\uff0c304 \u4e0d\u80fd\u901a\u8fc7\u70ed\u5904\u7406\u786c\u5316\uff0c\u800c\u662f\u9700\u8981\u9000\u706b\u3002\u9000\u706b\u6d89\u53ca\u5c06\u94a2\u52a0\u70ed\u5230\u5927\u7ea6 1040\u00b0C \u7684\u6e29\u5ea6\uff0c\u8fd9\u5141\u8bb8\u94a2\u7684\u5185\u90e8\u7ed3\u6784\u91cd\u65b0\u6392\u5217\u6210\u66f4\u5747\u5300\u548c\u5ef6\u5c55\u6027\u7684\u7ed3\u6784\uff0c\u7136\u540e\u8fdb\u884c\u5feb\u901f\u6dec\u706b\u3002\u8be5\u8fc7\u7a0b\u4e0d\u4ec5\u6709\u52a9\u4e8e\u7f13\u89e3\u5185\u90e8\u5e94\u529b\uff0c\u800c\u4e14\u8fd8\u63d0\u9ad8\u4e86\u94a2\u7684\u8010\u8150\u8680\u6027\u3002<\/p>\n<h2 id=\"summary-chart-of-what-is-the-difference-between-304-and-420-stainless-steel\">304 \u548c 440 \u4e0d\u9508\u94a2\u4e4b\u95f4\u7684\u5dee\u5f02\u603b\u7ed3\u8868<\/h2>\n<table border=\"1\">\n<tbody>\n<tr>\n<th>\u7279\u70b9<\/th>\n<th>304 \u4e0d\u9508\u94a2<\/th>\n<th>440 \u4e0d\u9508\u94a2<\/th>\n<\/tr>\n<tr>\n<td>\u4e3b\u8981\u5408\u91d1\u5143\u7d20<\/td>\n<td>18% \u94ec\u30018% \u954d<\/td>\n<td>16-18% \u94ec\u30010% \u954d\u30010.6-1.2% \u78b3<\/td>\n<\/tr>\n<tr>\n<td>\u8010\u8150\u8680\u6027<\/td>\n<td>\u9ad8<\/td>\n<td>\u4e2d\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>\u786c\u5ea6<\/td>\n<td>\u8f83\u4f4e<\/td>\n<td>\u66f4\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u6210\u578b\u6027<\/td>\n<td>\u9ad8<\/td>\n<td>\u8f83\u4f4e<\/td>\n<\/tr>\n<tr>\n<td>\u673a\u68b0\u52a0\u5de5\u6027\u80fd<\/td>\n<td>\u66f4\u5bb9\u6613<\/td>\n<td>\u66f4\u5177\u6311\u6218\u6027<\/td>\n<\/tr>\n<tr>\n<td>\u5e94\u7528<\/td>\n<td>\u53a8\u623f\u7535\u5668\u3001\u6c7d\u8f66\u96f6\u90e8\u4ef6\u3001\u533b\u7597\u5668\u68b0<\/td>\n<td>\u5207\u524a\u5200\u5177\u3001\u624b\u672f\u5668\u68b0\u3001\u8f74\u627f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"conclusion\">\u7ed3\u8bba<\/h2>\n<p>\u603b\u4e4b\uff0c\u5728\u6bd4\u8f83 440 \u4e0d\u9508\u94a2\u548c 304 \u4e0d\u9508\u94a2\u65f6\uff0c\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u5b83\u4eec\u7684\u5316\u5b66\u6210\u5206\u3001\u786c\u5ea6\u3001\u8010\u8150\u8680\u6027\u548c\u5e94\u7528\u3002440 \u4e0d\u9508\u94a2\u542b\u78b3\u91cf\u8f83\u9ad8\uff0c\u786c\u5ea6\u548c\u8fb9\u7f18\u4fdd\u6301\u6027\u66f4\u9ad8\uff0c\u9002\u5408\u7528\u4f5c\u5207\u524a\u5de5\u5177\u548c\u5200\u7247\u3002\u7136\u800c\uff0c\u4e0e 304 \u4e0d\u9508\u94a2\u76f8\u6bd4\uff0c\u5b83\u7684\u8010\u8150\u8680\u6027\u8f83\u5dee\u3002\u53e6\u4e00\u65b9\u9762\uff0c304 \u4e0d\u9508\u94a2\u542b\u94ec\u8f83\u591a\u3001\u78b3\u8f83\u5c11\uff0c\u5177\u6709\u51fa\u8272\u7684\u8010\u8150\u8680\u6027\uff0c\u66f4\u9002\u5408\u5728\u6076\u52a3\u73af\u5883\u4e2d\u5e7f\u6cdb\u5e94\u7528\uff0c\u4f8b\u5982\u98df\u54c1\u52a0\u5de5\u548c\u533b\u7597\u8bbe\u5907\u3002\u56e0\u6b64\uff0c440 \u548c 304 \u4e0d\u9508\u94a2\u4e4b\u95f4\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u5e94\u7528\u7684\u5177\u4f53\u8981\u6c42\uff0c\u5e73\u8861\u5f3a\u5ea6\u3001\u8010\u7528\u6027\u548c\u8010\u8150\u8680\u6027\u7b49\u56e0\u7d20\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u76ee\u5f55 SS420 \u548c SS304\uff1a\u54ea\u4e2a\u66f4\u597d\uff1f \u4f7f\u7528 304 \u548c 440 \u4e0d\u9508\u94a2\u7684\u7f3a\u70b9\u548c\u4f18\u70b9 \u5e94\u7528\uff1a\u5728\u54ea\u91cc\u4f7f\u7528 440 \u548c 304 \u4e0d\u9508\u94a2 \u8010\u8150\u8680\u6027\uff1a440 \u4e0d\u9508\u94a2\u4e0e 304 \u6210\u5206 440 \u548c 304 \u4e0d\u9508\u94a2\u4e4b\u95f4\u7684\u5dee\u5f02 \u673a\u68b0\u6027\u80fd\uff1a\u6bd4\u8f83 440 \u548c 304 \u4e0d\u9508\u94a2 \u53ef\u52a0\u5de5\u6027\u548c\u53ef\u6210\u5f62\u6027\uff1a440 [\u2026]<\/p>","protected":false},"author":1,"featured_media":3852,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","content-type":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-4008","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-material-selection-guide"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/posts\/4008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/comments?post=4008"}],"version-history":[{"count":2,"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/posts\/4008\/revisions"}],"predecessor-version":[{"id":4011,"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/posts\/4008\/revisions\/4011"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/media\/3852"}],"wp:attachment":[{"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/media?parent=4008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/categories?post=4008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/machining-quote.com\/zh\/wp-json\/wp\/v2\/tags?post=4008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}