{"id":7478,"date":"2026-10-10T11:52:17","date_gmt":"2026-10-10T03:52:17","guid":{"rendered":"https:\/\/soroyaglobal.com\/?p=7478"},"modified":"2026-10-10T11:52:18","modified_gmt":"2026-10-10T03:52:18","slug":"stainless-steel-fastener-grades-a2-70-vs-a4-80-a-buyers-guide","status":"publish","type":"post","link":"https:\/\/soroyaglobal.com\/zh\/stainless-steel-fastener-grades-a2-70-vs-a4-80-a-buyers-guide\/","title":{"rendered":"\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6\u7b49\u7ea7\uff1aA2-70 \u4e0e A4-80 \u5bf9\u6bd4\uff0c\u91c7\u8d2d\u6307\u5357"},"content":{"rendered":"<p>\u5f53B2B\u91c7\u8d2d\u65b9\u91c7\u8d2d\u4e0d\u9508\u94a2\u87ba\u6813\u3001\u87ba\u6bcd\u548c\u87ba\u9489\u65f6\uff0c\u8be2\u4ef7\u5355\uff08RFQ\uff09\u4e0a\u6700\u91cd\u8981\u7684\u4e00\u884c\u5c31\u662f\u7b49\u7ea7\u6807\u8bb0\u3002\u8bf8\u5982 <strong>A2-70<\/strong> \u4ee5\u53ca <strong>A4-80<\/strong> \u8fd9\u4e9b\u5e76\u975e\u53ef\u4ee5\u4e92\u6362\u7684\u8425\u9500\u672f\u8bed\u2014\u2014\u5b83\u4eec\u65e2\u5b9a\u4e49\u4e86\u5408\u91d1\u7684\u5316\u5b66\u6210\u5206\uff0c\u4e5f\u89c4\u5b9a\u4e86\u5176\u673a\u68b0\u5f3a\u5ea6\u3002\u9009\u62e9\u9519\u8bef\u4f1a\u5bfc\u81f4\u4f7f\u7528\u8fc7\u7a0b\u4e2d\u8fc7\u65e9\u8150\u8680\uff0c\u6216\u8005\u4e3a\u5e94\u7528\u573a\u666f\u5e76\u4e0d\u9700\u8981\u7684\u7b49\u7ea7\u652f\u4ed8\u989d\u5916\u8d39\u7528\u3002.<\/p>\n<h2>\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6\u7b49\u7ea7\u7684\u7f16\u7801\u65b9\u5f0f<\/h2>\n<p>\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6\u7684\u89c4\u683c\u89c4\u5b9a\u5982\u4e0b\uff1a <strong>ISO 3506<\/strong> \uff08\u53d6\u4ee3\u4e86\u6b64\u524d\u7684\u56fd\u5bb6\u6807\u51c6\uff0c\u5982DIN 267-13\uff09\u3002\u7c7b\u4f3c\u4e8e <strong>A2-70<\/strong> \u5305\u62ec\u4e24\u90e8\u5206\uff1a<\/p>\n<ul>\n<li><strong>\u5b57\u6bcd + \u7b2c\u4e00\u4e2a\u6570\u5b57<\/strong> \u6307\u4ee3\u5965\u6c0f\u4f53\u94a2\u7c7b\u3002. <strong>A2<\/strong> \u662f\u5e38\u89c1\u768418\/8\u7ea7\uff08\u5927\u81f4\u76f8\u5f53\u4e8eAISI 304\uff09\uff1b; <strong>A4<\/strong> \u662f\u542b\u94bc\u7684\u7b49\u7ea7\uff08\u5927\u81f4\u76f8\u5f53\u4e8eAISI 316\uff09\u3002.<\/li>\n<li><strong>\u7b2c\u4e8c\u4e2a\u6570\u5b57<\/strong> \u662f\u6027\u80fd\u7b49\u7ea7\uff0c\u7b49\u4e8e\u4ee510 N\/mm\u00b2\u4e3a\u5355\u4f4d\u7684\u6700\u5c0f\u6297\u62c9\u5f3a\u5ea6\u3002\u7b49\u7ea7 <strong>70<\/strong> \u6307\u81f3\u5c11700 N\/mm\u00b2\uff1b\u7b49\u7ea7 <strong>80<\/strong> \u5373\u81f3\u5c11\u4e3a800 N\/mm\u00b2\u3002.<\/li>\n<\/ul>\n<p>\u6240\u4ee5 <strong>A4-80<\/strong> \u8fd9\u662f\u4e00\u79cd316\u7cfb\u5217\u7d27\u56fa\u4ef6\uff0c\u7ecf\u8fc7\u51b7\u52a0\u5de5\u5904\u7406\uff0c\u5176\u6700\u5c0f\u6297\u62c9\u5f3a\u5ea6\u8fbe\u5230800 N\/mm\u00b2\u3002\u8be5\u6807\u8bb0\u5e94\u538b\u5370\u5728\u87ba\u6813\u7684\u5934\u90e8\u2014\u2014\u5982\u679c\u6ca1\u6709\uff0c\u5219\u65e0\u6cd5\u63d0\u4f9b\u8be5\u7b49\u7ea7\u7684\u72ec\u7acb\u8bc1\u660e\u3002.<\/p>\n<h2>A2-70 (304) \u4e0e A4-80 (316)\uff1a\u8be5\u9009\u7528\u54ea\u4e00\u79cd<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u5c5e\u6027<\/th>\n<th>A2-70\uff08\u7ea6304\uff09<\/th>\n<th>A4-80\uff08\u7ea6316\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5408\u91d1\u7cfb\u5217<\/td>\n<td>18% \u94ec \/ 8% \u954d\uff0c\u4e0d\u542b\u94bc<\/td>\n<td>~2% \u6dfb\u52a0\u94bc\u4ee5\u63d0\u9ad8\u6297\u70b9\u8680\u6027\u80fd<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u4f73\u73af\u5883<\/td>\n<td>\u5e72\u71e5\u73af\u5883\u3001\u5ba4\u5185\u4f7f\u7528\u3001\u6de1\u6c34\u3001\u901a\u7528\u7d27\u56fa<\/td>\n<td>\u6cbf\u6d77\/\u6d77\u6d0b\u3001\u6c2f\u5316\u7269\u66b4\u9732\u3001\u5316\u5b66\u3001\u98df\u54c1\u4e0e\u5236\u836f<\/td>\n<\/tr>\n<tr>\n<td>\u6700\u5c0f\u6297\u62c9\u5f3a\u5ea6<\/td>\n<td>700 N\/mm\u00b2\uff0870\u7ea7\uff09<\/td>\n<td>800 N\/mm\u00b2\uff0880\u7ea7\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u76f8\u5bf9\u6210\u672c<\/td>\n<td>\u8f83\u4f4e<\/td>\n<td>\u66f4\u9ad8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u51b3\u5b9a\u6027\u56e0\u7d20\u901a\u5e38\u662f\u73af\u5883\uff0c\u800c\u975e\u8f7d\u8377\u3002\u5bf9\u4e8e\u5927\u591a\u6570\u5e72\u71e5\u7684\u5ba4\u5185\u7ed3\u6784\u548c\u88c5\u914d\u5de5\u4f5c\u800c\u8a00\uff0cA2-70 \u5b8c\u5168\u8db3\u591f\u3002 \u5f53\u5b58\u5728\u6c2f\u5316\u7269\u3001\u76d0\u96fe\u3001\u5316\u5b66\u7269\u8d28\u6216\u6237\u5916\u6cbf\u6d77\u73af\u5883\u65f6\uff0cA4-80 \u4fbf\u662f\u6b63\u786e\u7684\u9009\u62e9\uff0c\u56e0\u4e3a 316 \u4e2d\u7684\u94bc\u80fd\u62b5\u6297\u70b9\u8680\uff0c\u800c 304 \u5219\u65e0\u6cd5\u505a\u5230\u8fd9\u4e00\u70b9\u3002.<\/p>\n<h2>\u91c7\u8d2d\u8ba2\u5355\u4e2d\u5e94\u5217\u660e\u7684\u901a\u7528\u4ea7\u54c1\u6807\u51c6<\/h2>\n<p>\u4ec5\u9760\u7b49\u7ea7\u662f\u4e0d\u591f\u7684\u2014\u2014\u4e70\u5bb6\u8fd8\u5e94\u660e\u786e\u6307\u5b9a\u8be5\u5177\u4f53\u96f6\u4ef6\u7684\u5c3a\u5bf8\u6807\u51c6\uff1a<\/p>\n<ul>\n<li><strong>\u516d\u89d2\u5934\u87ba\u6813\uff1a<\/strong> ISO 4014\uff08\u90e8\u5206\u87ba\u7eb9\uff09\u548c ISO 4017\uff08\u5168\u87ba\u7eb9\uff09\uff1b\u5386\u53f2\u4e0a\u7684 DIN 931 \u548c DIN 933\u3002.<\/li>\n<li><strong>\u516d\u89d2\u87ba\u6bcd\uff1a<\/strong> ISO 4032\uff1b\u5386\u53f2\u4e0a\u7684DIN 934\u3002.<\/li>\n<li><strong>\u5185\u516d\u89d2\u87ba\u6813\uff1a<\/strong> ISO 4762\u3002.<\/li>\n<\/ul>\n<p>\u4e00\u4e2a\u5b8c\u6574\u7684\u660e\u7ec6\u9879\u76ee\u5982\u4e0b\u6240\u793a\uff1a <em>\u201cM12\u00d740 \u5185\u516d\u89d2\u87ba\u6813\uff0c\u7b26\u5408 ISO 4017 \u6807\u51c6\uff0cA4-70 \u7ea7\uff0c\u7ecf\u949d\u5316\u5904\u7406\uff0c\u9644\u6709 3.1 \u8bc1\u4e66\u3002\u201d<\/em><\/p>\n<h2>\u91c7\u8d2d\/\u8be2\u4ef7\u6e05\u5355<\/h2>\n<ol>\n<li><strong>\u8bf7\u660e\u786e\u8bf4\u660e\u5e74\u7ea7\u3002simplified Chinese (Mainland).<\/strong> \u4e0d\u8981\u4ec5\u63a5\u53d7\u201c\u4e0d\u9508\u94a2\u201d\u8fd9\u4e00\u8868\u8ff0\u2014\u2014\u8981\u6c42\u6bcf\u884c\u90fd\u6ce8\u660eA2-70\u6216A4-80\u3002.<\/li>\n<li><strong>\u8bf7\u63d0\u4f9b\u7ebf\u53f7\u548c\u5c3a\u5bf8<\/strong> \u516c\u5236\u89c4\u683c\uff08\u4f8b\u5982 M10\u00d730\uff09\uff0c\u5e26\u7c97\u7259\u6216\u7ec6\u7259\u3002.<\/li>\n<li><strong>\u8bf7\u6307\u51fa\u8be5\u5c3a\u5bf8\u6807\u51c6<\/strong> \uff08ISO\/DIN\uff09\u9002\u7528\u4e8e\u8be5\u4ea7\u54c1\u7c7b\u578b\u3002.<\/li>\n<li><strong>\u7533\u8bf7\u6750\u6599\u8ba4\u8bc1<\/strong> \u7b26\u5408 EN 10204 3.1 \u6807\u51c6\uff0c\u5e76\u9644\u6709\u53ef\u8ffd\u6eaf\u7684\u7194\u7089\u7f16\u53f7\u3002\u5173\u4e8e\u5982\u4f55\u5ba1\u67e5\u8fd9\u4e9b\u6587\u4ef6\uff0c\u8bf7\u53c2\u9605\u6211\u4eec\u53d1\u5e03\u7684\u300a\u91c7\u8d2d\u65b9\u6838\u67e5\u6e05\u5355\u300b\uff0c\u8be5\u6587\u4ef6\u4f4d\u4e8e <a href=\"https:\/\/soroyaglobal.com\/zh\/stainless-steel-pipe-mill-test-certificate-buyer-checklist\/\">\u94a2\u5382\u68c0\u9a8c\u8bc1\u4e66<\/a>.<\/li>\n<li><strong>\u6838\u5bf9\u673a\u5934\u6807\u8bb0<\/strong> \u5bf9\u968f\u673a\u62bd\u53d6\u7684\u6837\u672c\u4e0e\u6807\u6ce8\u7684\u7b49\u7ea7\u8fdb\u884c\u6bd4\u5bf9\u3002.<\/li>\n<li><strong>\u786e\u8ba4\u8868\u9762\u72b6\u51b5<\/strong> \uff08\u672a\u5904\u7406\u3001\u949d\u5316\uff09\u53ca\u5305\u88c5\uff0c\u56e0\u6b64\u7d27\u56fa\u4ef6\u5728\u9001\u8fbe\u65f6\u4fdd\u6301\u6e05\u6d01\uff0c\u4e14\u65e0\u56e0\u642c\u8fd0\u9020\u6210\u7684\u6c61\u67d3\u3002.<\/li>\n<\/ol>\n<h2>\u5e38\u89c1\u7684\u8d2d\u7269\u8bef\u533a<\/h2>\n<p>\u6700\u5e38\u89c1\u7684\u9519\u8bef\u662f\u5c06\u5965\u6c0f\u4f53 <strong>A2-70<\/strong> \u91c7\u7528\u78b3\u94a2 <strong>8.8\u7ea7<\/strong>\u2014\u2014\u4e24\u8005\u867d\u7136\u90fd\u6807\u6709\u201c70\/8.8\u201d\u7c7b\u578b\u7684\u5f3a\u5ea6\u7f16\u53f7\uff0c\u4f46\u6750\u8d28\u5b8c\u5168\u4e0d\u540c\uff0c\u4e0d\u80fd\u4e92\u6362\u4f7f\u7528\u3002 \u7b2c\u4e8c\u70b9\u662f\u5728\u5b58\u5728\u878d\u96ea\u76d0\u6216\u6cbf\u6d77\u7a7a\u6c14\u7684\u73af\u5883\u4e2d\u6307\u5b9a\u4f7f\u7528A2\u6750\u6599\uff0c\u8fd9\u4f1a\u5bfc\u81f4\u9508\u6591\u548c\u7ec4\u4ef6\u5931\u6548\u3002\u7b2c\u4e09\u70b9\u662f\u5728\u672a\u91cd\u65b0\u6838\u67e5\u8ba4\u8bc1\u7684\u60c5\u51b5\u4e0b\u6df7\u7528\u4e0d\u540c\u751f\u4ea7\u6279\u6b21\u7684\u6750\u6599\uff0c\u8fd9\u4f1a\u7834\u574f\u70ed\u5904\u7406\u7f16\u53f7\u7684\u53ef\u8ffd\u6eaf\u6027\u3002.<\/p>\n<h2>\u4e3a\u4ec0\u4e48\u9009\u62e9SOROYA\u6765\u786e\u4fdd\u5206\u7ea7\u51c6\u786e<\/h2>\n<p>\u5728\u9879\u76ee\u521d\u671f\u5c31\u6307\u5b9a\u6b63\u786e\u7684\u7d27\u56fa\u4ef6\u7b49\u7ea7\uff0c\u65e2\u80fd\u9632\u6b62\u56e0\u8150\u8680\u5bfc\u81f4\u7684\u5931\u6548\uff0c\u53c8\u80fd\u907f\u514d\u5728\u4e0d\u5fc5\u8981\u7684316\u6750\u8d28\u4e0a\u8d85\u652f\uff0c\u540c\u65f6\u786e\u4fdd\u6bcf\u9897\u87ba\u6813\u90fd\u80fd\u8ffd\u6eaf\u5230\u94a2\u5382\u8bc1\u4e66\u3002 \u65e0\u8bba\u60a8\u7684\u9879\u76ee\u9700\u8981\u901a\u7528\u578bA2-70\u8fd8\u662f\u8010\u6c2f\u5316\u7269\u578bA4-80\uff0cSOROYA\u7684\u91c7\u8d2d\u56e2\u961f\u90fd\u80fd\u6839\u636e\u60a8\u8981\u6c42\u7684\u6807\u51c6\uff0c\u7edf\u4e00\u91c7\u8d2d\u516d\u89d2\u87ba\u6813\u3001\u87ba\u6bcd\u548c\u87ba\u9489\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u652f\u6301\u6587\u4ef6\u3002.<\/p>\n<p><strong>SOROYA PTE. LTD.<\/strong><br \/>\nEmail\uff1anancy@soroya.com.sg<br \/>\nWhatsApp\uff1a+65 8058 3416<\/p>","protected":false},"excerpt":{"rendered":"<p>When a B2B buyer sources stainless steel bolts, nuts, and screws, the single most important line on the RFQ is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7479,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-7478","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/posts\/7478","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/comments?post=7478"}],"version-history":[{"count":1,"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/posts\/7478\/revisions"}],"predecessor-version":[{"id":7480,"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/posts\/7478\/revisions\/7480"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/media\/7479"}],"wp:attachment":[{"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/media?parent=7478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/categories?post=7478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/soroyaglobal.com\/zh\/wp-json\/wp\/v2\/tags?post=7478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}