{"id":7368,"date":"2022-04-07T03:45:08","date_gmt":"2022-04-06T19:45:08","guid":{"rendered":"https:\/\/xzfastener.com\/?p=7368"},"modified":"2026-06-24T03:46:48","modified_gmt":"2026-06-23T19:46:48","slug":"astm-fastener-threads-what-procurement-teams-need-to-know","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/vi\/astm-fastener-threads-what-procurement-teams-need-to-know\/","title":{"rendered":"ASTM Ch\u1ee7 \u0111\u1ec1 chi ti\u1ebft si\u1ebft ch\u1eb7t: Nh\u1eefng \u0111i\u1ec1u nh\u00f3m mua s\u1eafm c\u1ea7n bi\u1ebft"},"content":{"rendered":"<p>ASTM ren chi ti\u1ebft si\u1ebft ch\u1eb7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t chi ti\u1ebft k\u1ef9 thu\u1eadt \u0111\u01a1n gi\u1ea3n khi mua s\u1eafm. Trong th\u1ef1c t\u1ebf, ti\u00eau chu\u1ea9n ren, dung sai v\u00e0 \u0111\u1ed9 kh\u00edt c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh xem m\u1ed1i n\u1ed1i bu l\u00f4ng c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady hay b\u1ecb h\u1ecfng trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t ho\u1eb7c b\u1ea3o tr\u00ec hay kh\u00f4ng.<\/p>\n\n\n\n<p>Trong mua h\u00e0ng c\u00f4ng nghi\u1ec7p, t\u00f4i \u0111\u00e3 th\u1ea5y nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p ch\u1ecdn \u0111\u00fang lo\u1ea1i v\u1eadt li\u1ec7u, nh\u01b0ng ti\u00eau chu\u1ea9n ren sai ho\u1eb7c h\u1ec7 th\u1ed1ng ren kh\u00f4ng kh\u1edbp \u0111\u00e3 t\u1ea1o ra c\u00e1c v\u1ea5n \u0111\u1ec1 t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng. Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ren kh\u00f4ng ch\u1ec9 l\u00e0 chi ti\u1ebft gia c\u00f4ng\u2014n\u00f3 l\u00e0 y\u00eau c\u1ea7u c\u1ea5p h\u1ec7 th\u1ed1ng. (ASTM)<\/p>\n\n\n\n<p>\u0110\u1ec3 tham kh\u1ea3o v\u1ec1 h\u1ec7 th\u1ed1ng chi ti\u1ebft si\u1ebft ch\u1eb7t v\u00e0 ch\u1ee7ng lo\u1ea1i s\u1ea3n ph\u1ea9m, ng\u01b0\u1eddi mua c\u00f3 th\u1ec3 xem l\u1ea1i XZ Fastener's <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/standard-fasteners\/\">\u1ed1c v\u00edt ti\u00eau chu\u1ea9n<\/a> v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/products-tag\/threaded-rod\/\">thanh ren<\/a> trang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u201cASTM Ren\u201d th\u1ef1c s\u1ef1 c\u00f3 ngh\u0129a l\u00e0 g\u00ec<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM x\u00e1c \u0111\u1ecbnh v\u1eadt li\u1ec7u, kh\u00f4ng ch\u1ec9 h\u00ecnh d\u1ea1ng ren<\/h3>\n\n\n\n<p>M\u1ed9t s\u1ef1 hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn l\u00e0 cho r\u1eb1ng ASTM \u0111\u1ecbnh ngh\u0129a ch\u00ednh thread \u0111\u00f3. Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u, hi\u1ec7u su\u1ea5t c\u01a1 h\u1ecdc, x\u1eed l\u00fd nhi\u1ec7t v\u00e0 c\u00e1c y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m.<\/p>\n\n\n\n<p>H\u00ecnh d\u1ea1ng ren th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1edfi c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ed3ng h\u00e0nh nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng ASME, ANSI, ISO, ho\u1eb7c H\u1ec7 th\u1ed1ng Ti\u00eau chu\u1ea9n ren th\u1ed1ng nh\u1ea5t (UTS).<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Lo\u1ea1i ti\u00eau chu\u1ea9n<\/th><th>N\u00f3 ki\u1ec3m so\u00e1t nh\u1eefng g\u00ec<\/th><th>V\u00ed d\u1ee5<\/th><\/tr><\/thead><tbody><tr><td>ASTM<\/td><td>V\u1eadt li\u1ec7u, s\u1ee9c m\u1ea1nh, th\u1eed nghi\u1ec7m<\/td><td>ASTM A193 B7<\/td><\/tr><tr><td>ASME \/ ANSI<\/td><td>D\u1ea1ng ren v\u00e0 ti\u00eau chu\u1ea9n k\u00edch th\u01b0\u1edbc<\/td><td>ch\u1ee7 \u0111\u1ec1 UNC \/ UNF<\/td><\/tr><tr><td>ISO \/ DIN<\/td><td>H\u1ec7 th\u1ed1ng ren s\u1ed1 li\u1ec7u<\/td><td>M10 \u00d7 1.5<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n ch\u1ee7 \u0111\u1ec1 th\u1ed1ng nh\u1ea5t<\/td><td>Ch\u1ee7 \u0111\u1ec1 h\u1ec7 th\u1ed1ng inch<\/td><td>1\/2\u201d-13 UNC<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>S\u1ef1 t\u00e1ch bi\u1ec7t n\u00e0y l\u00e0 r\u1ea5t quan tr\u1ecdng. Nh\u00f3m mua s\u1eafm ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u1ea3 ti\u00eau chu\u1ea9n v\u1eadt li\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n ch\u1ec9 \u0111\u1ec1u \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H\u1ec7 th\u1ed1ng ren bu\u1ed9c ASTM th\u00f4ng d\u1ee5ng<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean inch th\u1ed1ng tr\u1ecb c\u00e1c \u1ee9ng d\u1ee5ng (ASTM)<\/h3>\n\n\n\n<p>H\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng b\u1eaft v\u00edt \u0111\u1ec1u s\u1eed d\u1ee5ng ren H\u1ee3p nh\u1ea5t. Hai lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 UNC (th\u00f4) v\u00e0 UNF (tinh t\u1ebf). (ASTM)<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Lo\u1ea1i ch\u1ee7 \u0111\u1ec1<\/th><th>Description<\/th><th>S\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/th><\/tr><\/thead><tbody><tr><td>UNC<\/td><td>Ren th\u00f4 th\u1ed1ng nh\u1ea5t<\/td><td>Bu l\u00f4ng k\u1ebft c\u1ea5u v\u00e0 m\u00e1y m\u00f3c n\u00f3i chung<\/td><\/tr><tr><td>UNF<\/td><td>Ch\u1ee7 \u0111\u1ec1 t\u1ed1t th\u1ed1ng nh\u1ea5t<\/td><td>L\u1eafp r\u00e1p ch\u00ednh x\u00e1c v\u00e0 ki\u1ec3m so\u00e1t k\u1eb9p cao h\u01a1n<\/td><\/tr><tr><td>8UN<\/td><td>D\u00f2ng h\u1ea1ng n\u1eb7ng th\u1ed1ng nh\u1ea5t<\/td><td>Bu l\u00f4ng m\u1eb7t b\u00edch \u0111\u01b0\u1eddng k\u00ednh l\u1edbn<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>V\u00ed d\u1ee5, bu l\u00f4ng \u0111inh ASTM A193 B7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ec7 th\u1ed1ng m\u1eb7t b\u00edch th\u01b0\u1eddng \u0111\u01b0\u1ee3c gh\u00e9p n\u1ed1i v\u1edbi ren UNC ho\u1eb7c 8UN t\u00f9y thu\u1ed9c v\u00e0o th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a m\u1eb7t b\u00edch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch ch\u1ee7 \u0111\u1ec1 trong mua s\u1eafm<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p nh\u1ecf d\u1eabn \u0111\u1ebfn l\u1ed7i hi\u1ec7n tr\u01b0\u1eddng<\/h3>\n\n\n\n<p>S\u1ef1 kh\u00f4ng ph\u00f9 h\u1ee3p c\u1ee7a ch\u1ee7 \u0111\u1ec1 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng r\u00f5 r\u00e0ng trong qu\u00e1 tr\u00ecnh mua s\u1eafm. C\u00e1c b\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 tr\u00f4ng \u0111\u00fang nh\u01b0ng l\u1ea1i b\u1ecb l\u1ed7i trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>L\u1ed7i mua s\u1eafm<\/th><th>K\u1ebft qu\u1ea3 tr\u01b0\u1eddng<\/th><\/tr><\/thead><tbody><tr><td>Tr\u1ed9n c\u00e1c ch\u1ee7 \u0111\u1ec1 s\u1ed1 li\u1ec7u v\u00e0 inch<\/td><td>L\u1ed7i l\u1eafp r\u00e1p t\u1ea1i ch\u1ed7<\/td><\/tr><tr><td>L\u1ef1a ch\u1ecdn cao \u0111\u1ed9 sai<\/td><td>\u0110ai \u1ed1c kh\u00f4ng th\u1ec3 \u0103n kh\u1edbp \u0111\u00fang c\u00e1ch<\/td><\/tr><tr><td>Dung sai kh\u00f4ng ph\u00f9 h\u1ee3p<\/td><td>Ph\u00f9 h\u1ee3p l\u1ecfng l\u1ebbo ho\u1eb7c ch\u1eb7t ch\u1ebd<\/td><\/tr><tr><td>Thay th\u1ebf s\u1ee3i m\u1ecbn cho s\u1ee3i th\u00f4<\/td><td>Gi\u1ea3m s\u1ef1 tham gia ho\u1eb7c lo\u1ea1i b\u1ecf r\u1ee7i ro<\/td><\/tr><tr><td>B\u1ecf qua ti\u00eau chu\u1ea9n \u0111ai \u1ed1c<\/td><td>Th\u1ea5t b\u1ea1i s\u1edbm khi t\u1ea3i tr\u01b0\u1edbc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ren ph\u1ea3i lu\u00f4n \u0111\u01b0\u1ee3c x\u00e1c minh gi\u1eefa bu l\u00f4ng, \u0111ai \u1ed1c, l\u1ed7 ren v\u00e0 b\u1ed9 ph\u1eadn giao ph\u1ed1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM Ren bu\u1ed9c trong c\u00e1c \u1ee9ng d\u1ee5ng c\u01b0\u1eddng \u0111\u1ed9 cao<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Thi\u1ebft k\u1ebf lu\u1ed3ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00e0nh vi t\u1ea3i<\/h3>\n\n\n\n<p>Trong c\u00e1c h\u1ec7 th\u1ed1ng bu l\u00f4ng c\u01b0\u1eddng \u0111\u1ed9 cao, h\u00ecnh d\u1ea1ng ren \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i tr\u01b0\u1edbc v\u00e0 \u0111\u1ed9 m\u1ecfi. (ASTM)<\/p>\n\n\n\n<p>V\u00ed d\u1ee5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c s\u1ee3i th\u00f4 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng t\u1ed1t h\u01a1n v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n hi\u1ec7n tr\u01b0\u1eddng.<\/li>\n\n\n\n<li>S\u1ee3i m\u1ecbn cung c\u1ea5p di\u1ec7n t\u00edch \u1ee9ng su\u1ea5t k\u00e9o cao h\u01a1n \u1edf m\u1ed9t s\u1ed1 k\u00edch c\u1ee1.<\/li>\n\n\n\n<li>Chu\u1ed7i ren n\u1eb7ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng m\u1eb7t b\u00edch n\u01a1i c\u1ea7n c\u00f3 s\u1ef1 g\u1eafn k\u1ebft l\u1edbn h\u01a1n.<\/li>\n<\/ul>\n\n\n\n<p>| H\u1ec7 ren | H\u00e0nh vi c\u01a1 h\u1ecdc | Xem x\u00e9t mua s\u1eafm |<br>|&#8212;|&#8212;|<br>| UNC | L\u1eafp r\u00e1p d\u1ec5 d\u00e0ng h\u01a1n, khoan dung h\u01a1n | \u0110\u01b0\u1ee3c \u01b0a chu\u1ed9ng trong x\u00e2y d\u1ef1ng t\u1ed5ng h\u1ee3p |<br>| UNF | \u0110\u1ed9 ch\u00ednh x\u00e1c t\u1ea3i tr\u01b0\u1edbc cao h\u01a1n | Y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t c\u00e0i \u0111\u1eb7t s\u1ea1ch h\u01a1n |<br>| 8UN | H\u1ec7 th\u1ed1ng m\u1eb7t b\u00edch \u0111\u01b0\u1eddng k\u00ednh l\u1edbn | Ph\u1ea3i tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt m\u1eb7t b\u00edch |<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi \u1ed1c v\u00edt c\u00f3 \u0111\u1ed9 b\u1ec1n cao, ng\u01b0\u1eddi mua c\u0169ng n\u00ean xem x\u00e9t XZ Fastener's <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/high-strength-fasteners\/\">\u1ed1c v\u00edt c\u01b0\u1eddng \u0111\u1ed9 cao<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ch\u1ea5t li\u1ec7u v\u00e0 ch\u1ec9: Sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">ASTM c\u1ea5p kh\u00f4ng \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng ren ch\u00ednh x\u00e1c<\/h3>\n\n\n\n<p>M\u1ed9t l\u1ed7i mua s\u1eafm th\u01b0\u1eddng g\u1eb7p l\u00e0 ch\u1ec9 t\u1eadp trung v\u00e0o lo\u1ea1i v\u1eadt li\u1ec7u ASTM ch\u1eb3ng h\u1ea1n nh\u01b0 A193 B7 ho\u1eb7c A320 L7 trong khi b\u1ecf qua \u0111\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt c\u1ee7a s\u1ee3i.<\/p>\n\n\n\n<p>Ch\u1ea5t li\u1ec7u quy\u1ebft \u0111\u1ecbnh s\u1ee9c m\u1ea1nh. Ch\u1ee7 \u0111\u1ec1 x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Parameter<\/th><th>R\u1ee7i ro n\u1ebfu b\u1ecf qua<\/th><\/tr><\/thead><tbody><tr><td>ASTM l\u1edbp<\/td><td>\u0110\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc kh\u00f4ng ch\u00ednh x\u00e1c<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n ch\u1ee7 \u0111\u1ec1<\/td><td>L\u1eafp r\u00e1p kh\u00f4ng kh\u1edbp<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111ai \u1ed1c<\/td><td>Suy kh\u1edbp s\u1edbm<\/td><\/tr><tr><td>T\u00ecnh tr\u1ea1ng l\u1edbp ph\u1ee7<\/td><td>Bi\u1ebfn \u0111\u1ed5i m\u00f4-men xo\u1eafn<\/td><\/tr><tr><td>Tr\u1ea1ng th\u00e1i b\u00f4i tr\u01a1n<\/td><td>T\u1ea3i tr\u01b0\u1edbc kh\u00f4ng nh\u1ea5t qu\u00e1n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>C\u1ea3 hai \u0111\u1ec1u ph\u1ea3i \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh r\u00f5 r\u00e0ng trong RFQ v\u00e0 b\u1ea3n v\u1ebd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u01b0\u01a1ng t\u00e1c l\u1edbp ph\u1ee7 v\u00e0 ren<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ec1 m\u1eb7t ho\u00e0n thi\u1ec7n thay \u0111\u1ed5i hi\u1ec7u su\u1ea5t ren<\/h3>\n\n\n\n<p>H\u00e0nh vi c\u1ee7a s\u1ee3i b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 d\u00e0y l\u1edbp ph\u1ee7 v\u00e0 ma s\u00e1t. C\u00e1c \u1ed1c v\u00edt c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u1ee7 b\u1eb1ng m\u1ea1 k\u1ebdm, m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng, v\u1ea3y k\u1ebdm ho\u1eb7c oxit \u0111en. (ASTM, PTFE)<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Lo\u1ea1i l\u1edbp ph\u1ee7<\/th><th>T\u00e1c \u0111\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/th><\/tr><\/thead><tbody><tr><td>M\u1ea1 k\u1ebdm<\/td><td>Thay \u0111\u1ed5i ma s\u00e1t v\u1eeba ph\u1ea3i<\/td><\/tr><tr><td>M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/td><td>Ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 v\u1eeba v\u1eb7n c\u1ee7a ch\u1ec9<\/td><\/tr><tr><td>PTFE l\u1edbp ph\u1ee7<\/td><td>Ma s\u00e1t th\u1ea5p, thay \u0111\u1ed5i m\u1ed1i quan h\u1ec7 m\u00f4-men xo\u1eafn-ti\u1ec1n t\u1ea3i<\/td><\/tr><tr><td>v\u1ea3y k\u1ebdm<\/td><td>Ki\u1ec3m so\u00e1t ma s\u00e1t, ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t<\/td><\/tr><tr><td>Oxit \u0111en<\/td><td>Thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng chi ti\u1ebft si\u1ebft ch\u1eb7t \u0111\u01b0\u1ee3c ph\u1ee7, h\u00e3y xem XZ Fastener <a href=\"https:\/\/xzfastener.com\/vi\/products-category\/various-coated-fasteners\/\">\u1ed1c v\u00edt tr\u00e1ng kh\u00e1c nhau<\/a>, <a href=\"https:\/\/xzfastener.com\/vi\/fastener-coating\/hot-dip-galvanizing\/\">m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/a>v\u00e0 <a href=\"https:\/\/xzfastener.com\/vi\/fastener-coating\/teflon-coating\/\">PTFE l\u1edbp ph\u1ee7<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra mua s\u1eafm cho Ch\u1ed1t c\u00f3 ren (ASTM)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng g\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>M\u1ee5c<\/th><th>Requirement<\/th><\/tr><\/thead><tbody><tr><td>ASTM \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u<\/td><td>v\u00ed d\u1ee5, A193 B7, A320 L7<\/td><\/tr><tr><td>Ti\u00eau chu\u1ea9n ch\u1ee7 \u0111\u1ec1<\/td><td>UNC, UNF, ho\u1eb7c 8UN<\/td><\/tr><tr><td>\u0110\u01b0\u1eddng k\u00ednh v\u00e0 chi\u1ec1u d\u00e0i<\/td><td>\u0110\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng inch<\/td><\/tr><tr><td>Th\u00f4ng s\u1ed1 \u0111ai \u1ed1c<\/td><td>ASTM A194 ho\u1eb7c t\u01b0\u01a1ng \u0111\u01b0\u01a1ng<\/td><\/tr><tr><td>Y\u00eau c\u1ea7u v\u00f2ng \u0111\u1ec7m<\/td><td>N\u1ebfu thi\u1ebft k\u1ebf y\u00eau c\u1ea7u<\/td><\/tr><tr><td>Lo\u1ea1i s\u01a1n<\/td><td>Bao g\u1ed3m ki\u1ec3m so\u00e1t \u0111\u1ed9 d\u00e0y v\u00e0 ma s\u00e1t<\/td><\/tr><tr><td>Y\u00eau c\u1ea7u m\u00f4-men xo\u1eafn<\/td><td>N\u1ebfu l\u1eafp r\u00e1p \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t t\u1ea3i tr\u01b0\u1edbc<\/td><\/tr><tr><td>Ki\u1ec3m tra v\u00e0 ch\u1ee9ng nh\u1eadn<\/td><td>MTC, truy xu\u1ea5t ngu\u1ed3n g\u1ed1c s\u1ed1 nhi\u1ec7t<\/td><\/tr><tr><td>Chi ti\u1ebft \u1ee9ng d\u1ee5ng<\/td><td>M\u1eb7t b\u00edch, k\u1ebft c\u1ea5u, m\u00e1y m\u00f3c, v.v.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng thanh ren v\u00e0 bu l\u00f4ng \u0111inh t\u00e1n, XZ Fastener <a href=\"https:\/\/xzfastener.com\/vi\/products-tag\/threaded-rod\/\">thanh ren<\/a> trang c\u00f3 th\u1ec3 gi\u00fap ng\u01b0\u1eddi mua ki\u1ec3m tra ch\u00e9o c\u1ea5u h\u00ecnh ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Khuy\u1ebfn ngh\u1ecb cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n<p>C\u00e1c s\u1ee3i chi ti\u1ebft si\u1ebft ch\u1eb7t kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c x\u1eed l\u00fd t\u00e1ch bi\u1ec7t kh\u1ecfi v\u1eadt li\u1ec7u v\u00e0 thi\u1ebft k\u1ebf \u1ee9ng d\u1ee5ng. Ch\u1ea5t li\u1ec7u x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n, nh\u01b0ng s\u1ee3i ch\u1ec9 x\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a h\u1ec7 th\u1ed1ng. (ASTM)<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c nh\u00f3m mua s\u1eafm, c\u00e1ch ti\u1ebfp c\u1eadn an to\u00e0n nh\u1ea5t l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>X\u00e1c nh\u1eadn ASTM l\u1edbp.<\/li>\n\n\n\n<li>X\u00e1c nh\u1eadn h\u1ec7 th\u1ed1ng lu\u1ed3ng (UNC, UNF, ho\u1eb7c 8UN).<\/li>\n\n\n\n<li>X\u00e1c nh\u1eadn kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a \u0111ai \u1ed1c v\u00e0 v\u00f2ng \u0111\u1ec7m.<\/li>\n\n\n\n<li>X\u00e1c minh \u0111i\u1ec1u ki\u1ec7n l\u1edbp ph\u1ee7 v\u00e0 m\u00f4-men xo\u1eafn.<\/li>\n\n\n\n<li>\u0110\u1ea3m b\u1ea3o truy xu\u1ea5t ngu\u1ed3n g\u1ed1c v\u00e0 ch\u1ee9ng nh\u1eadn \u0111\u1ea7y \u0111\u1ee7.<\/li>\n<\/ul>\n\n\n\n<p>Khi c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh th\u1eb3ng h\u00e0ng, c\u00e1c ch\u1ed1t s\u1ebd ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady trong c\u00e1c \u1ee9ng d\u1ee5ng k\u1ebft c\u1ea5u, m\u1eb7t b\u00edch, m\u00e1y m\u00f3c v\u00e0 \u00e1p su\u1ea5t. N\u1ebfu kh\u00f4ng, ngay c\u1ea3 nh\u1eefng v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i ch\u00ednh x\u00e1c c\u0169ng c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng \u1edf giai \u0111o\u1ea1n l\u1eafp r\u00e1p. (ASTM)<\/p>","protected":false},"excerpt":{"rendered":"<p>ASTM fastener threads are often treated as a simple specification detail in procurement. In reality, thread standard, tolerance, and fit can determine whether a bolted joint performs reliably or fails during installation or service. In industrial purchasing, I have seen many cases where the correct ASTM material grade was selected, but the wrong thread standard [&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":[496],"class_list":["post-7368","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-thread-types-pitch-tolerance"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/comments?post=7368"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7368\/revisions"}],"predecessor-version":[{"id":7369,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/posts\/7368\/revisions\/7369"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/media?parent=7368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/categories?post=7368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/vi\/wp-json\/wp\/v2\/tags?post=7368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}