{"id":7479,"date":"2025-08-07T07:25:22","date_gmt":"2025-08-06T23:25:22","guid":{"rendered":"https:\/\/xzfastener.com\/?p=7479"},"modified":"2026-06-24T07:26:25","modified_gmt":"2026-06-23T23:26:25","slug":"a2-70-vs-a4-80-stainless-steel-bolts-strength-and-corrosion-balance","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/zh\/a2-70-vs-a4-80-stainless-steel-bolts-strength-and-corrosion-balance\/","title":{"rendered":"A2-70 \u4e0e A4-80 \u4e0d\u9508\u94a2\u87ba\u6813\uff1a\u5f3a\u5ea6\u548c\u8150\u8680\u5e73\u8861"},"content":{"rendered":"<p>A2-70 \u548c A4-80 \u4e0d\u9508\u94a2\u87ba\u6813\u662f\u5de5\u4e1a\u7d27\u56fa\u7cfb\u7edf\u4e2d\u6700\u5e38\u7528\u7684\u4e24\u79cd\u724c\u53f7\u3002\u4e4d\u4e00\u770b\uff0c\u4e24\u8005\u90fd\u5c5e\u4e8e\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6\uff0c\u4f46\u5b83\u4eec\u5728\u5f3a\u5ea6\u548c\u8010\u8150\u8680\u6027\u65b9\u9762\u7684\u6027\u80fd\u8868\u73b0\u5374\u622a\u7136\u4e0d\u540c\u3002<\/p>\n\n\n\n<p>\u5728\u5b9e\u9645\u91c7\u8d2d\u548c\u5de5\u7a0b\u5b9e\u8df5\u4e2d\uff0cA2-70\u548cA4-80\u7684\u9009\u62e9\u4e0d\u4ec5\u4ec5\u662f\u6750\u6599\u7c7b\u578b\u7684\u95ee\u9898\u3002\u5b83\u6d89\u53ca\u5e73\u8861\u673a\u68b0\u5f3a\u5ea6\u3001\u73af\u5883\u66b4\u9732\u548c\u957f\u671f\u53ef\u9760\u6027\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u4e0d\u9508\u94a2\u548c\u5de5\u4e1a\u7d27\u56fa\u4ef6\u7cfb\u7edf\uff0c\u4e70\u5bb6\u53ef\u4ee5\u67e5\u770b XZ Fastener <a href=\"https:\/\/xzfastener.com\/zh\/fastener-material\/stainless-steel\/\">\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6<\/a> \u548c <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/standard-fasteners\/\">\u6807\u51c6\u7d27\u56fa\u4ef6<\/a> \u9875\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. A2-70\u548cA4-80\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e86\u89e3\u4e0d\u9508\u94a2\u7684\u5206\u7c7b<\/h3>\n\n\n\n<p>\u8be5\u540d\u79f0\u57fa\u4e8eISO\u5c5e\u6027\u7b49\u7ea7\u3002 \u201cA2\u201d\u548c\u201cA4\u201d\u662f\u6307\u6750\u6599\u7cfb\u5217\uff0c\u800c\u201c70\u201d\u548c\u201c80\u201d\u662f\u6307\u6700\u5c0f\u62c9\u4f38\u5f3a\u5ea6\u6c34\u5e73\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Grade<\/th><th>\u6750\u6599\u7c7b\u578b<\/th><th>\u5f3a\u5ea6\u7b49\u7ea7<\/th><\/tr><\/thead><tbody><tr><td>A2-70<\/td><td>\u5965\u6c0f\u4f53\u4e0d\u9508\u94a2\uff08\u76f8\u5f53\u4e8e304\uff09<\/td><td>700 MPa \u62c9\u4f38\u5f3a\u5ea6<\/td><\/tr><tr><td>A4-80<\/td><td>\u5965\u6c0f\u4f53\u4e0d\u9508\u94a2\uff08\u76f8\u5f53\u4e8e316\uff09<\/td><td>800\u5146\u5e15\u62c9\u4f38\u5f3a\u5ea6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>A2-70\u5e7f\u6cdb\u5e94\u7528\u4e8e\u4e00\u822c\u73af\u5883\uff0c\u800cA4-80\u5219\u8bbe\u8ba1\u7528\u4e8e\u5177\u6709\u66f4\u9ad8\u5f3a\u5ea6\u8981\u6c42\u7684\u66f4\u6076\u52a3\u7684\u8150\u8680\u6761\u4ef6\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u5b9e\u529b\u5bf9\u6bd4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">A4-80\u63d0\u4f9b\u66f4\u9ad8\u7684\u673a\u68b0\u6027\u80fd<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8d22\u4ea7<\/th><th>A2-70<\/th><th>A4-80<\/th><\/tr><\/thead><tbody><tr><td>\u62c9\u4f38\u5f3a\u5ea6<\/td><td>700 MPa<\/td><td>800 MPa<\/td><\/tr><tr><td>\u5c48\u670d\u5f3a\u5ea6<\/td><td>\u8f83\u4f4e<\/td><td>\u66f4\u9ad8<\/td><\/tr><tr><td>\u8d1f\u8f7d\u80fd\u529b<\/td><td>\u4e2d\u7b49<\/td><td>\u66f4\u9ad8<\/td><\/tr><tr><td>\u5e94\u7528\u7c7b\u578b<\/td><td>\u4e00\u822c\u5de5\u4e1a\u7528\u9014<\/td><td>\u66f4\u9ad8\u8d1f\u8f7d+\u8150\u8680\u6027\u73af\u5883<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>A4-80 \u63d0\u4f9b\u66f4\u597d\u7684\u5f3a\u5ea6\uff0c\u4f46\u8fd9\u5e76\u4e0d\u81ea\u52a8\u4f7f\u5176\u6210\u4e3a\u6bcf\u79cd\u5e94\u7528\u7684\u6700\u4f73\u9009\u62e9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3\u3001\u8010\u8150\u8680\u6027\u80fd\u6bd4\u8f83<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6750\u6599\u6210\u5206\u662f\u5173\u952e\u533a\u522b<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u56e0\u7d20<\/th><th>A2-70<\/th><th>A4-80<\/th><\/tr><\/thead><tbody><tr><td>\u57fa\u6750<\/td><td>304 \u4e0d\u9508\u94a2<\/td><td>316 \u4e0d\u9508\u94a2<\/td><\/tr><tr><td>\u8010\u6c2f\u6027<\/td><td>\u4e2d\u7b49<\/td><td>\u9ad8<\/td><\/tr><tr><td>\u6d77\u6d0b\u9002\u5b9c\u6027<\/td><td>\u6709\u9650\u516c\u53f8<\/td><td>\u5408\u9002\u7684<\/td><\/tr><tr><td>\u8010\u5316\u5b66\u6027<\/td><td>\u4e00\u822c<\/td><td>\u6539\u8fdb<\/td><\/tr><tr><td>\u6237\u5916\u8010\u7528\u6027<\/td><td>\u597d<\/td><td>\u66f4\u597d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>A4-80 \u5728\u6709\u76d0\u3001\u5316\u5b66\u54c1\u6216\u9ad8\u6e7f\u5ea6\u7684\u73af\u5883\u4e2d\u8868\u73b0\u66f4\u597d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u5178\u578b\u5e94\u7528\u573a\u666f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9009\u62e9\u9996\u5148\u53d6\u51b3\u4e8e\u73af\u5883<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5e94\u7528\u9886\u57df<\/th><th>\u63a8\u8350\u7b49\u7ea7<\/th><\/tr><\/thead><tbody><tr><td>\u5ba4\u5185\u673a\u68b0<\/td><td>A2-70<\/td><\/tr><tr><td>\u4e00\u822c\u65bd\u5de5<\/td><td>A2-70<\/td><\/tr><tr><td>\u5ba4\u5916\u7ed3\u6784<\/td><td>A2-70 \u6216 A4-80<\/td><\/tr><tr><td>\u6cbf\u6d77\u6216\u6d77\u6d0b\u73af\u5883<\/td><td>A4-80<\/td><\/tr><tr><td>\u5316\u5b66\u52a0\u5de5<\/td><td>A4-80<\/td><\/tr><tr><td>\u98df\u54c1\u6216\u5236\u836f\u8bbe\u5907<\/td><td>A2-70 \u6216 A4-80 \u53d6\u51b3\u4e8e\u4ecb\u8d28<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u4e00\u822c\u7d27\u56fa\u4ef6\u7cfb\u7edf\uff0c\u4e70\u5bb6\u8fd8\u53ef\u4ee5\u67e5\u770b XZ Fastener \u7684 <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/standard-fasteners\/\">\u6807\u51c6\u7d27\u56fa\u4ef6<\/a> \u9875\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u5f3a\u5ea6\u4e0e\u8150\u8680\u5e73\u8861<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u66f4\u9ad8\u7684\u5f3a\u5ea6\u5e76\u4e0d\u603b\u662f\u610f\u5473\u7740\u66f4\u597d\u7684\u9009\u62e9<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u56e0\u7d20<\/th><th>A2-70<\/th><th>A4-80<\/th><\/tr><\/thead><tbody><tr><td>\u5b9e\u529b\u4f18\u52bf<\/td><td>\u4e2d\u7b49<\/td><td>\u66f4\u9ad8<\/td><\/tr><tr><td>\u8010\u8150\u8680<\/td><td>\u597d<\/td><td>\u66f4\u597d<\/td><\/tr><tr><td>\u6210\u672c\u6c34\u5e73<\/td><td>\u8f83\u4f4e<\/td><td>\u66f4\u9ad8<\/td><\/tr><tr><td>\u53ef\u7528\u6027<\/td><td>\u9ad8<\/td><td>\u4e2d\u7b49<\/td><\/tr><tr><td>\u5e94\u7528\u7075\u6d3b\u6027<\/td><td>\u5bbd<\/td><td>\u7279\u5b9a\u73af\u5883<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5728\u5b9e\u9645\u5de5\u7a0b\u4f7f\u7528\u4e2d\uff0c\u8bb8\u591a\u6545\u969c\u7684\u53d1\u751f\u5e76\u4e0d\u662f\u56e0\u4e3a\u87ba\u6813\u592a\u5f31\uff0c\u800c\u662f\u56e0\u4e3a\u9488\u5bf9\u73af\u5883\u9009\u62e9\u4e86\u9519\u8bef\u7684\u7b49\u7ea7\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u4e70\u5bb6\u5e38\u89c1\u9519\u8bef<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5bf9\u4e0d\u9508\u94a2\u724c\u53f7\u7684\u8bef\u89e3<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9519\u8bef<\/th><th>\u7ed3\u679c<\/th><\/tr><\/thead><tbody><tr><td>\u5047\u8bbe\u6240\u6709\u4e0d\u9508\u94a2\u90fd\u662f\u5e73\u7b49\u7684<\/td><td>\u8150\u8680\u6027\u80fd\u4e0d\u6b63\u786e<\/td><\/tr><tr><td>\u5728\u6d77\u6d0b\u73af\u5883\u4e2d\u4f7f\u7528 A2-70<\/td><td>\u8fc7\u65e9\u8150\u8680<\/td><\/tr><tr><td>\u4e3a\u6240\u6709\u5e94\u7528\u9009\u62e9 A4-80<\/td><td>\u4e0d\u5fc5\u8981\u7684\u6210\u672c\u589e\u52a0<\/td><\/tr><tr><td>\u5ffd\u89c6\u64e6\u4f24\u98ce\u9669<\/td><td>\u5b89\u88c5\u8fc7\u7a0b\u4e2d\u87ba\u7eb9\u635f\u574f<\/td><\/tr><tr><td>\u5728\u540c\u4e00\u7ec4\u4ef6\u4e2d\u6df7\u5408\u7b49\u7ea7<\/td><td>\u5173\u8282\u884c\u4e3a\u4e0d\u4e00\u81f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u6d82\u5c42\u6216\u6df7\u5408\u7cfb\u7edf\uff0c\u4e70\u5bb6\u53ef\u4ee5\u67e5\u770b XZ Fastener \u7684 <a href=\"https:\/\/xzfastener.com\/zh\/products-category\/various-coated-fasteners\/\">\u5404\u79cd\u6d82\u5c42\u7d27\u56fa\u4ef6<\/a> \u9875\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7. \u5b89\u88c5\u6ce8\u610f\u4e8b\u9879<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e0d\u9508\u94a2\u9700\u8981\u63a7\u5236\u62e7\u7d27<\/h3>\n\n\n\n<p>\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6\u7684\u6027\u80fd\u4e0e\u78b3\u94a2\u4e0d\u540c\u3002\u5b83\u4eec\u66f4\u5bb9\u6613\u78e8\u635f\uff0c\u5c24\u5176\u662f\u5728\u5e72\u71e5\u7d27\u56fa\u6761\u4ef6\u4e0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5b89\u88c5\u7cfb\u6570<\/th><th>\u8003\u8651\u56e0\u7d20<\/th><\/tr><\/thead><tbody><tr><td>\u626d\u77e9\u63a7\u5236<\/td><td>\u5bf9\u4e8e\u9884\u8f7d\u7a33\u5b9a\u6027\u81f3\u5173\u91cd\u8981<\/td><\/tr><tr><td>\u6da6\u6ed1<\/td><td>\u964d\u4f4e\u64e6\u4f24\u98ce\u9669<\/td><\/tr><tr><td>\u5de5\u5177\u9009\u62e9<\/td><td>\u907f\u514d\u8fc7\u5ea6\u6469\u64e6<\/td><\/tr><tr><td>\u87ba\u7eb9\u72b6\u51b5<\/td><td>\u5fc5\u987b\u5e72\u51c0\u4e14\u672a\u635f\u574f<\/td><\/tr><tr><td>\u7ec4\u88c5\u901f\u5ea6<\/td><td>\u5efa\u8bae\u63a7\u5236\u62e7\u7d27<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u87ba\u7eb9\u7cfb\u7edf\u7ec4\u4ef6\uff0c\u4e70\u5bb6\u8fd8\u53ef\u4ee5\u67e5\u770b XZ Fastener \u7684 <a href=\"https:\/\/xzfastener.com\/zh\/products-tag\/threaded-rod\/\">\u87ba\u7eb9\u6746<\/a> \u7c7b\u522b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">8. \u4f55\u65f6\u9009\u62e9A2-70<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9002\u7528\u4e8e\u4e00\u822c\u73af\u5883<\/h3>\n\n\n\n<p>A2-70\u56e0\u5176\u6210\u672c\u4e0e\u6027\u80fd\u7684\u5e73\u8861\u800c\u88ab\u5e7f\u6cdb\u5e94\u7528\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u4f7f\u7528\u6848\u4f8b<\/th><th>\u539f\u56e0<\/th><\/tr><\/thead><tbody><tr><td>\u5ba4\u5185\u8bbe\u5907<\/td><td>\u65e0\u4fb5\u8680\u6027\u8150\u8680\u66b4\u9732<\/td><\/tr><tr><td>\u4e00\u822c\u5927\u4f1a<\/td><td>\u8db3\u591f\u7684\u5f3a\u5ea6\u8981\u6c42<\/td><\/tr><tr><td>\u975e\u5173\u952e\u7ed3\u6784<\/td><td>\u6210\u672c\u6548\u76ca<\/td><\/tr><tr><td>\u5e72\u71e5\u73af\u5883<\/td><td>\u6027\u80fd\u7a33\u5b9a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>A2-70 \u4ecd\u7136\u662f\u5927\u591a\u6570\u6807\u51c6\u4e0d\u9508\u94a2\u5e94\u7528\u7684\u9ed8\u8ba4\u9009\u62e9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">9. \u4f55\u65f6\u9009\u62e9A4-80<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9700\u8981\u6076\u52a3\u7684\u73af\u5883\u548c\u66f4\u9ad8\u7684\u8d1f\u8f7d<\/h3>\n\n\n\n<p>\u5f53\u5f3a\u5ea6\u548c\u8010\u8150\u8680\u6027\u90fd\u81f3\u5173\u91cd\u8981\u65f6\u5e94\u9009\u62e9A4-80\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u4f7f\u7528\u6848\u4f8b<\/th><th>\u539f\u56e0<\/th><\/tr><\/thead><tbody><tr><td>\u6d77\u6d0b\u73af\u5883<\/td><td>\u9700\u8981\u9ad8\u6297\u6c2f\u6027<\/td><\/tr><tr><td>\u5316\u5de5\u5382<\/td><td>\u6fc0\u8fdb\u7684\u5a92\u4f53\u66dd\u5149<\/td><\/tr><tr><td>\u9ad8\u8d1f\u8f7d\u63a5\u5934<\/td><td>\u9700\u8981\u66f4\u9ad8\u7684\u62c9\u4f38\u5f3a\u5ea6<\/td><\/tr><tr><td>\u6d77\u4e0a\u8bbe\u5907<\/td><td>\u957f\u671f\u8150\u8680\u4fdd\u62a4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u5bf9\u4e8e\u4e0d\u9508\u94a2\u6750\u6599\u7cfb\u7edf\uff0c\u4e70\u5bb6\u53ef\u4ee5\u67e5\u770b XZ Fastener \u7684 <a href=\"https:\/\/xzfastener.com\/zh\/fastener-material\/stainless-steel\/\">\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6<\/a> \u9875\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e70\u5bb6\u8be2\u4ef7\u6e05\u5355<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u660e\u786e\u5b9a\u4e49\u73af\u5883\u548c\u5f3a\u5ea6<\/h3>\n\n\n\n<p>\u6b63\u786e\u7684RFQ\u5e94\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7d27\u56fa\u4ef6\u7c7b\u578b\u3001\u5c3a\u5bf8\u548c\u6807\u51c6\u3002<\/li>\n\n\n\n<li>\u6750\u6599\u724c\u53f7\uff08A2-70 \u6216 A4-80\uff09\u3002<\/li>\n\n\n\n<li>\u673a\u68b0\u5f3a\u5ea6\u8981\u6c42\u3002<\/li>\n\n\n\n<li>\u73af\u5883\u66b4\u9732\u6761\u4ef6\u3002<\/li>\n\n\n\n<li>\u8010\u8150\u8680\u9884\u671f\u3002<\/li>\n\n\n\n<li>\u626d\u77e9\u6216\u5b89\u88c5\u8981\u6c42\u3002<\/li>\n\n\n\n<li>\u8868\u9762\u5149\u6d01\u5ea6\u6216\u949d\u5316\u8981\u6c42\u3002<\/li>\n\n\n\n<li>\u68c0\u67e5\u548c\u8ba4\u8bc1\u8981\u6c42\u3002<\/li>\n\n\n\n<li>\u5e94\u7528\u56fe\u7eb8\u6216\u89c4\u683c\u53c2\u8003\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u5bf9\u4e8e\u57fa\u4e8e\u9879\u76ee\u7684\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6\uff0c\u8bf7\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u53d1\u9001\u8981\u6c42 <a href=\"https:\/\/xzfastener.com\/zh\/home\/contact-us\/\">XZ Fastener \u8054\u7cfb\u6211\u4eec<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6700\u7ec8\u63a8\u8350<\/h2>\n\n\n\n<p>A2-70 \u548c A4-80 \u4e0d\u662f\u53ef\u4e92\u6362\u7684\u724c\u53f7\u3002 A2-70\u9002\u7528\u4e8e\u5177\u6709\u4e2d\u7b49\u8150\u8680\u98ce\u9669\u7684\u4e00\u822c\u5de5\u4e1a\u73af\u5883\uff0c\u800cA4-80\u5219\u8bbe\u8ba1\u7528\u4e8e\u66f4\u9ad8\u5f3a\u5ea6\u548c\u66f4\u5177\u8150\u8680\u6027\u7684\u6761\u4ef6\u3002<\/p>\n\n\n\n<p>\u6b63\u786e\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u73af\u5883\u3001\u8d1f\u8f7d\u8981\u6c42\u548c\u957f\u671f\u670d\u52a1\u671f\u671b\u3002\u5f53\u6b63\u786e\u8bc4\u4f30\u8fd9\u4e9b\u56e0\u7d20\u65f6\uff0c\u4e0d\u9508\u94a2\u7d27\u56fa\u4ef6\u5728\u4e00\u822c\u548c\u6076\u52a3\u7684\u5de5\u4e1a\u5e94\u7528\u4e2d\u90fd\u53ef\u4ee5\u63d0\u4f9b\u53ef\u9760\u7684\u6027\u80fd\u5e76\u5ef6\u957f\u4f7f\u7528\u5bff\u547d\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>A2-70 and A4-80 stainless steel bolts are two of the most commonly used grades in industrial fastening systems. At first glance, both belong to stainless steel fasteners, but their performance behavior is very different when it comes to strength and corrosion resistance. In real procurement and engineering practice, the selection between A2-70 and A4-80 is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[504],"class_list":["post-7479","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-strength-grades-mechanical-properties"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/7479","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/comments?post=7479"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/7479\/revisions"}],"predecessor-version":[{"id":7480,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/posts\/7479\/revisions\/7480"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/media?parent=7479"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/categories?post=7479"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/zh\/wp-json\/wp\/v2\/tags?post=7479"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}