{"id":1199,"date":"2025-10-19T00:34:42","date_gmt":"2025-10-18T17:34:42","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/tinh-trong-luong-inox-tam-ong-tron-ong-hop-cong-thuc-chuan\/"},"modified":"2025-10-19T00:34:42","modified_gmt":"2025-10-18T17:34:42","slug":"tinh-trong-luong-inox-tam-ong-tron-ong-hop-cong-thuc-chuan","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/tinh-trong-luong-inox-tam-ong-tron-ong-hop-cong-thuc-chuan\/","title":{"rendered":"T\u00ednh tr\u1ecdng l\u01b0\u1ee3ng Inox t\u1ea5m, \u1ed1ng tr\u00f2n, \u1ed1ng h\u1ed9p: c\u00f4ng th\u1ee9c chu\u1ea9n"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-nguyen-ly-chung-va-mat-do-inox-theo-mac\">Nguy\u00ean l\u00fd chung v\u00e0 m\u1eadt \u0111\u1ed9 inox theo m\u00e1c<\/a><\/li>\n<li><a href=\"#toc-1-cong-thuc-tinh-theo-tung-san-pham\">C\u00f4ng th\u1ee9c t\u00ednh theo t\u1eebng s\u1ea3n ph\u1ea9m<\/a><\/li>\n<li><a href=\"#toc-2-bang-quy-doi-nhanh-tham-khao-thuc-hanh\">B\u1ea3ng quy \u0111\u1ed5i nhanh (tham kh\u1ea3o th\u1ef1c h\u00e0nh)<\/a><\/li>\n<li><a href=\"#toc-3-sai-so-thuc-te-va-cach-kiem-soat\">Sai s\u1ed1 th\u1ef1c t\u1ebf v\u00e0 c\u00e1ch ki\u1ec3m so\u00e1t<\/a><\/li>\n<li><a href=\"#toc-4-quy-trinh-tinh-nhanh-3-buoc\">Quy tr\u00ecnh t\u00ednh nhanh 3 b\u01b0\u1edbc<\/a><\/li>\n<li><a href=\"#toc-5-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li>\n<li><a href=\"#toc-6-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Trong thi c\u00f4ng v\u00e0 gia c\u00f4ng inox, t\u00ednh \u0111\u00fang tr\u1ecdng l\u01b0\u1ee3ng t\u1ea5m, \u1ed1ng v\u00e0 h\u1ed9p gi\u00fap d\u1ef1 to\u00e1n ch\u00ednh x\u00e1c, ch\u1ecdn k\u1ebft c\u1ea5u an to\u00e0n v\u00e0 t\u1ed1i \u01b0u v\u1eadn chuy\u1ec3n. B\u00e0i vi\u1ebft n\u00e0y t\u1ed5ng h\u1ee3p c\u00f4ng th\u1ee9c, h\u1eb1ng s\u1ed1 quy \u0111\u1ed5i theo t\u1eebng m\u00e1c (201\/304\/316), k\u00e8m v\u00ed d\u1ee5 t\u00ednh \u0111i\u1ec3n h\u00ecnh v\u00e0 b\u1ea3ng quy \u0111\u1ed5i nhanh \u0111\u1ec3 b\u1ea1n \u00e1p d\u1ee5ng ngay.<\/p>\n<h2 id=\"toc-0-nguyen-ly-chung-va-mat-do-inox-theo-mac\">Nguy\u00ean l\u00fd chung v\u00e0 m\u1eadt \u0111\u1ed9 inox theo m\u00e1c<\/h2>\n<p>&#8211; C\u00f4ng th\u1ee9c n\u1ec1n t\u1ea3ng: Tr\u1ecdng l\u01b0\u1ee3ng = Th\u1ec3 t\u00edch \u00d7 Kh\u1ed1i l\u01b0\u1ee3ng ri\u00eang (m\u1eadt \u0111\u1ed9).<br \/>\n&#8211; \u0110\u01a1n v\u1ecb khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; Chi\u1ec1u d\u00e0i, r\u1ed9ng, \u0111\u01b0\u1eddng k\u00ednh, chi\u1ec1u d\u00e0y: mm ho\u1eb7c m (th\u1ed1ng nh\u1ea5t trong m\u1ed9t c\u00f4ng th\u1ee9c).<br \/>\n  &#8211; M\u1eadt \u0111\u1ed9 (\u03c1): kg\/m3 ho\u1eb7c g\/cm3 (t\u01b0\u01a1ng \u1ee9ng v\u1edbi h\u1ec7 \u0111\u01a1n v\u1ecb b\u1ea1n ch\u1ecdn).<\/p>\n<p>M\u1eadt \u0111\u1ed9 inox tham kh\u1ea3o (\u1edf 20 \u00b0C):<br \/>\n&#8211; Inox 201: kho\u1ea3ng 7.90 g\/cm3 (\u2248 7,900 kg\/m3).<br \/>\n&#8211; Inox 304\/304L: kho\u1ea3ng 7.93 g\/cm3 (\u2248 7,930 kg\/m3).<br \/>\n&#8211; Inox 316\/316L: kho\u1ea3ng 7.98 g\/cm3 (\u2248 7,980 kg\/m3).<\/p>\n<p>Ghi ch\u00fa:<br \/>\n&#8211; S\u1eed d\u1ee5ng 7.93 (304) l\u00e0 chu\u1ea9n c\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam. 316 n\u1eb7ng h\u01a1n ~0.6%, 201 nh\u1eb9 h\u01a1n ~0.4% so v\u1edbi 304.<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng l\u00fd thuy\u1ebft c\u00f3 th\u1ec3 l\u1ec7ch 2\u20135% so v\u1edbi c\u00e2n th\u1ef1c t\u1ebf do dung sai chi\u1ec1u d\u00e0y, g\u00f3c bo \u1ed1ng h\u1ed9p, m\u1ed1i h\u00e0n, l\u1edbp ph\u1ee7.<\/p>\n<h2 id=\"toc-1-cong-thuc-tinh-theo-tung-san-pham\">C\u00f4ng th\u1ee9c t\u00ednh theo t\u1eebng s\u1ea3n ph\u1ea9m<\/h2>\n<h3>1) Inox t\u1ea5m (sheet\/plate)<\/h3>\n<p>C\u00f4ng th\u1ee9c t\u1ed5ng qu\u00e1t:<br \/>\n&#8211; N\u1ebfu nh\u1eadp theo m\u00e9t: Tr\u1ecdng l\u01b0\u1ee3ng (kg) = chi\u1ec1u d\u00e0y (mm) \u00d7 r\u1ed9ng (m) \u00d7 d\u00e0i (m) \u00d7 \u03c1 (kg\/m3) \/ 1000.<br \/>\n&#8211; Quy \u0111\u1ed5i nhanh theo m2 (cho 304): Tr\u1ecdng l\u01b0\u1ee3ng (kg\/m2) = 7.93 \u00d7 chi\u1ec1u d\u00e0y (mm).<br \/>\n  &#8211; V\u1edbi 201: 7.90 \u00d7 chi\u1ec1u d\u00e0y (mm).<br \/>\n  &#8211; V\u1edbi 316: 7.98 \u00d7 chi\u1ec1u d\u00e0y (mm).<\/p>\n<p>V\u00ed d\u1ee5 1 (t\u1ea5m 304 ti\u00eau chu\u1ea9n 1.22 \u00d7 2.44 m, d\u00e0y 1.5 mm):<br \/>\n&#8211; Di\u1ec7n t\u00edch = 1.22 \u00d7 2.44 = 2.9768 m2.<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng = 7.93 \u00d7 1.5 \u00d7 2.9768 = 35.38 kg.<\/p>\n<p>V\u00ed d\u1ee5 2 (t\u1ea5m 316 k\u00edch th\u01b0\u1edbc 1500 \u00d7 3000 mm, d\u00e0y 2.0 mm):<br \/>\n&#8211; Di\u1ec7n t\u00edch = 1.5 \u00d7 3.0 = 4.5 m2.<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng = 7.98 \u00d7 2.0 \u00d7 4.5 = 71.82 kg.<\/p>\n<h3>2) \u1ed0ng tr\u00f2n inox (h\u00e0n A554, c\u00f4ng nghi\u1ec7p A312, v.v.)<\/h3>\n<p>C\u00f4ng th\u1ee9c tr\u1ecdng l\u01b0\u1ee3ng theo m\u00e9t (OD v\u00e0 t t\u00ednh b\u1eb1ng mm):<br \/>\n&#8211; 304: Tr\u1ecdng l\u01b0\u1ee3ng (kg\/m) = 0.02490 \u00d7 t \u00d7 (OD \u2212 t).<br \/>\n&#8211; 201: 0.02481 \u00d7 t \u00d7 (OD \u2212 t).<br \/>\n&#8211; 316: 0.02507 \u00d7 t \u00d7 (OD \u2212 t).<br \/>\nTrong \u0111\u00f3 OD l\u00e0 \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i, t l\u00e0 chi\u1ec1u d\u00e0y th\u00e0nh \u1ed1ng. C\u00f4ng th\u1ee9c \u0111\u00e3 t\u00ednh \u0111\u00fang h\u00ecnh h\u1ecdc \u1ed1ng r\u1ed7ng.<\/p>\n<p>V\u00ed d\u1ee5 1 (\u1ed1ng 304 OD 38.1 mm, d\u00e0y 1.5 mm):<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng = 0.02490 \u00d7 1.5 \u00d7 (38.1 \u2212 1.5) = 1.366 kg\/m.<\/p>\n<p>V\u00ed d\u1ee5 2 (\u1ed1ng 304 OD 50.8 mm, d\u00e0y 1.5 mm):<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng = 0.02490 \u00d7 1.5 \u00d7 (50.8 \u2212 1.5) = 1.841 kg\/m.<\/p>\n<p>V\u00ed d\u1ee5 3 (\u1ed1ng 316 OD 60.5 mm, d\u00e0y 2.0 mm):<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng = 0.02507 \u00d7 2.0 \u00d7 (60.5 \u2212 2.0) = 2.939 kg\/m.<\/p>\n<h3>3) \u1ed0ng h\u1ed9p inox (vu\u00f4ng, ch\u1eef nh\u1eadt)<\/h3>\n<p>C\u00f4ng th\u1ee9c tr\u1ecdng l\u01b0\u1ee3ng theo m\u00e9t cho 304 (a, b, t t\u00ednh b\u1eb1ng mm):<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng (kg\/m) = 0.00793 \u00d7 [a \u00d7 b \u2212 (a \u2212 2t) \u00d7 (b \u2212 2t)].<br \/>\n&#8211; V\u1edbi 201 d\u00f9ng 0.00790; v\u1edbi 316 d\u00f9ng 0.00798.<br \/>\nTrong \u0111\u00f3 a, b l\u00e0 k\u00edch th\u01b0\u1edbc ngo\u00e0i, t l\u00e0 chi\u1ec1u d\u00e0y. C\u00f4ng th\u1ee9c gi\u1ea3 \u0111\u1ecbnh g\u00f3c vu\u00f4ng l\u00fd thuy\u1ebft; \u1ed1ng h\u1ed9p th\u1ef1c t\u1ebf c\u00f3 g\u00f3c bo n\u00ean tr\u1ecdng l\u01b0\u1ee3ng c\u00e2n th\u1ef1c t\u1ebf th\u01b0\u1eddng nh\u1ec9nh h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi l\u00fd thuy\u1ebft.<\/p>\n<p>V\u00ed d\u1ee5 1 (\u1ed1ng h\u1ed9p 304 40 \u00d7 80 \u00d7 1.5 mm):<br \/>\n&#8211; Di\u1ec7n t\u00edch m\u1eb7t c\u1eaft = 40\u00d780 \u2212 37\u00d777 = 3,200 \u2212 2,849 = 351 mm2.<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng = 0.00793 \u00d7 351 = 2.783 kg\/m.<\/p>\n<p>V\u00ed d\u1ee5 2 (\u1ed1ng h\u1ed9p 304 20 \u00d7 20 \u00d7 1.0 mm):<br \/>\n&#8211; Di\u1ec7n t\u00edch = 400 \u2212 18\u00d718 = 400 \u2212 324 = 76 mm2.<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng = 0.00793 \u00d7 76 = 0.602 kg\/m.<\/p>\n<p>V\u00ed d\u1ee5 3 (\u1ed1ng h\u1ed9p 304 30 \u00d7 60 \u00d7 1.2 mm):<br \/>\n&#8211; Di\u1ec7n t\u00edch = 1,800 \u2212 27.6 \u00d7 57.6 = 1,800 \u2212 1,589.76 = 210.24 mm2.<br \/>\n&#8211; Tr\u1ecdng l\u01b0\u1ee3ng = 0.00793 \u00d7 210.24 = 1.667 kg\/m.<\/p>\n<h2 id=\"toc-2-bang-quy-doi-nhanh-tham-khao-thuc-hanh\">B\u1ea3ng quy \u0111\u1ed5i nhanh (tham kh\u1ea3o th\u1ef1c h\u00e0nh)<\/h2>\n<h3>1) Tr\u1ecdng l\u01b0\u1ee3ng\/m2 t\u1ea5m inox 304 theo chi\u1ec1u d\u00e0y<\/h3>\n<p>&#8211; 0.5 mm: 3.97 kg\/m2<br \/>\n&#8211; 0.8 mm: 6.34 kg\/m2<br \/>\n&#8211; 1.0 mm: 7.93 kg\/m2<br \/>\n&#8211; 1.2 mm: 9.52 kg\/m2<br \/>\n&#8211; 1.5 mm: 11.90 kg\/m2<br \/>\n&#8211; 2.0 mm: 15.86 kg\/m2<br \/>\n&#8211; 3.0 mm: 23.79 kg\/m2<br \/>\n&#8211; 5.0 mm: 39.65 kg\/m2<\/p>\n<h3>2) Tr\u1ecdng l\u01b0\u1ee3ng t\u1ea5m 304 c\u1ee1 th\u00f4ng d\u1ee5ng<\/h3>\n<p>&#8211; 1219 \u00d7 2438 mm (4 \u00d7 8 ft):<br \/>\n  &#8211; 0.8 mm: 18.93 kg<br \/>\n  &#8211; 1.0 mm: 23.66 kg<br \/>\n  &#8211; 1.2 mm: 28.39 kg<br \/>\n  &#8211; 1.5 mm: 35.38 kg<br \/>\n  &#8211; 2.0 mm: 47.32 kg<br \/>\n  &#8211; 3.0 mm: 70.98 kg<br \/>\n&#8211; 1500 \u00d7 3000 mm:<br \/>\n  &#8211; M\u1ed7i 1.0 mm \u2248 35.69 kg; 2.0 mm \u2248 71.37 kg; 3.0 mm \u2248 107.06 kg.<\/p>\n<h3>3) \u1ed0ng tr\u00f2n 304 \u2013 m\u1ed9t s\u1ed1 size ph\u1ed5 bi\u1ebfn (kg\/m)<\/h3>\n<p>&#8211; OD 25.4 mm \u00d7 t 1.2 mm: 0.723 kg\/m<br \/>\n&#8211; OD 38.1 mm \u00d7 t 1.5 mm: 1.366 kg\/m<br \/>\n&#8211; OD 50.8 mm \u00d7 t 1.5 mm: 1.841 kg\/m<br \/>\n&#8211; OD 60.5 mm \u00d7 t 2.0 mm: 2.913 kg\/m<\/p>\n<h3>4) \u1ed0ng h\u1ed9p 304 \u2013 m\u1ed9t s\u1ed1 size ph\u1ed5 bi\u1ebfn (kg\/m)<\/h3>\n<p>&#8211; 20 \u00d7 20 \u00d7 1.0 mm: 0.602 kg\/m<br \/>\n&#8211; 40 \u00d7 40 \u00d7 1.2 mm: 1.603 kg\/m<br \/>\n&#8211; 40 \u00d7 80 \u00d7 1.5 mm: 2.783 kg\/m<br \/>\n&#8211; 50 \u00d7 100 \u00d7 2.0 mm: 5.028 kg\/m<\/p>\n<h2 id=\"toc-3-sai-so-thuc-te-va-cach-kiem-soat\">Sai s\u1ed1 th\u1ef1c t\u1ebf v\u00e0 c\u00e1ch ki\u1ec3m so\u00e1t<\/h2>\n<p>&#8211; Dung sai chi\u1ec1u d\u00e0y: Theo ASTM A480 (t\u1ea5m), ASTM A554\/A312 (\u1ed1ng), chi\u1ec1u d\u00e0y c\u00f3 bi\u00ean \u0111\u1ed9 cho ph\u00e9p; d\u00e0y th\u1ef1c c\u00f3 th\u1ec3 l\u1ec7ch so v\u1edbi danh ngh\u0129a, l\u00e0m ch\u00eanh 2\u20135% tr\u1ecdng l\u01b0\u1ee3ng.<br \/>\n&#8211; G\u00f3c bo \u1ed1ng h\u1ed9p: C\u00f4ng th\u1ee9c l\u00fd thuy\u1ebft d\u00f9ng g\u00f3c vu\u00f4ng; h\u1ed9p th\u1ef1c t\u1ebf c\u00f3 bo trong\/ngo\u00e0i, t\u0103ng di\u1ec7n t\u00edch m\u1eb7t c\u1eaft nh\u1eb9 \u2192 tr\u1ecdng l\u01b0\u1ee3ng th\u1ef1c l\u1edbn h\u01a1n t\u00ednh to\u00e1n.<br \/>\n&#8211; M\u1ed1i h\u00e0n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t: M\u1ed1i h\u00e0n TIG\/MIG c\u00f3 th\u1ec3 th\u00eam v\u1eadt li\u1ec7u; \u0111\u00e1nh b\u00f3ng hairline, NO.4 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn kh\u1ed1i l\u01b0\u1ee3ng.<br \/>\n&#8211; Th\u00e0nh ph\u1ea7n m\u00e1c th\u00e9p: M\u1eadt \u0111\u1ed9 bi\u1ebfn thi\u00ean nh\u1ecf theo th\u00e0nh ph\u1ea7n h\u1ee3p kim, nhi\u1ec7t luy\u1ec7n \u2192 ch\u00eanh v\u00e0i ph\u1ea7n ngh\u00ecn.<br \/>\n&#8211; C\u00e1ch ki\u1ec3m so\u00e1t:<br \/>\n  &#8211; S\u1eed d\u1ee5ng h\u1eb1ng s\u1ed1 \u0111\u00fang m\u00e1c: 201=7.90; 304=7.93; 316=7.98.<br \/>\n  &#8211; L\u00e0m tr\u00f2n +2\u20133% khi \u0111\u1eb7t h\u00e0ng \u1ed1ng h\u1ed9p \u0111\u1ec3 b\u00f9 g\u00f3c bo, dung sai.<br \/>\n  &#8211; C\u00e2n m\u1eabu th\u1ef1c t\u1ebf theo l\u00f4 \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh h\u1ec7 s\u1ed1 n\u1ebfu d\u1ef1 to\u00e1n s\u1ed1 l\u01b0\u1ee3ng l\u1edbn.<\/p>\n<h2 id=\"toc-4-quy-trinh-tinh-nhanh-3-buoc\">Quy tr\u00ecnh t\u00ednh nhanh 3 b\u01b0\u1edbc<\/h2>\n<p>1) X\u00e1c \u0111\u1ecbnh m\u00e1c inox (201\/304\/316) v\u00e0 k\u00edch th\u01b0\u1edbc danh ngh\u0129a (mm): t\u1ea5m (d\u00e0y \u00d7 r\u1ed9ng \u00d7 d\u00e0i), \u1ed1ng tr\u00f2n (OD \u00d7 t), \u1ed1ng h\u1ed9p (a \u00d7 b \u00d7 t).<br \/>\n2) Ch\u1ecdn c\u00f4ng th\u1ee9c \u0111\u00fang v\u00e0 h\u1eb1ng s\u1ed1 t\u01b0\u01a1ng \u1ee9ng m\u00e1c:<br \/>\n&#8211; T\u1ea5m 304: kg = 7.93 \u00d7 t(mm) \u00d7 di\u1ec7n t\u00edch (m2).<br \/>\n&#8211; \u1ed0ng tr\u00f2n 304: kg\/m = 0.02490 \u00d7 t \u00d7 (OD \u2212 t).<br \/>\n&#8211; \u1ed0ng h\u1ed9p 304: kg\/m = 0.00793 \u00d7 [a\u00d7b \u2212 (a \u2212 2t)(b \u2212 2t)].<br \/>\n3) \u00c1p d\u1ee5ng v\u00e0 c\u1ed9ng d\u1ef1 ph\u00f2ng 2\u20133% cho \u1ed1ng\/h\u1ed9p, 1\u20132% cho t\u1ea5m n\u1ebfu c\u1ea7n d\u1ef1 to\u00e1n mua h\u00e0ng.<\/p>\n<h2 id=\"toc-5-cau-hoi-thuong-gap\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<p>&#8211; Inox 304 n\u1eb7ng bao nhi\u00eau kg\/m3? Kho\u1ea3ng 7,930 kg\/m3 (7.93 g\/cm3).<br \/>\n&#8211; D\u00f9ng c\u00f9ng m\u1ed9t c\u00f4ng th\u1ee9c cho 201\/316 \u0111\u01b0\u1ee3c kh\u00f4ng? \u0110\u01b0\u1ee3c, nh\u01b0ng ph\u1ea3i thay h\u1ec7 s\u1ed1 m\u1eadt \u0111\u1ed9: 201\u22487.90; 316\u22487.98.<br \/>\n&#8211; V\u00ec sao \u1ed1ng h\u1ed9p c\u00e2n n\u1eb7ng h\u01a1n l\u00fd thuy\u1ebft? Do g\u00f3c bo v\u00e0 m\u1ed1i h\u00e0n l\u00e0m t\u0103ng di\u1ec7n t\u00edch m\u1eb7t c\u1eaft so v\u1edbi m\u00f4 h\u00ecnh g\u00f3c vu\u00f4ng l\u00fd t\u01b0\u1edfng.<br \/>\n&#8211; K\u00edch th\u01b0\u1edbc 4\u00d78 ft t\u01b0\u01a1ng \u0111\u01b0\u01a1ng bao nhi\u00eau? Kho\u1ea3ng 1219 \u00d7 2438 mm, di\u1ec7n t\u00edch ~2.9768 m2.<\/p>\n<h2 id=\"toc-6-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>C\u1ed1t l\u00f5i \u0111\u1ec3 t\u00ednh tr\u1ecdng l\u01b0\u1ee3ng inox ch\u00ednh x\u00e1c l\u00e0 d\u00f9ng \u0111\u00fang h\u1ec7 s\u1ed1 m\u1eadt \u0111\u1ed9 theo m\u00e1c v\u00e0 c\u00f4ng th\u1ee9c ph\u00f9 h\u1ee3p h\u00ecnh d\u1ea1ng:<br \/>\n&#8211; T\u1ea5m 304: kg = 7.93 \u00d7 t(mm) \u00d7 m2.<br \/>\n&#8211; \u1ed0ng tr\u00f2n 304: kg\/m = 0.02490 \u00d7 t \u00d7 (OD \u2212 t).<br \/>\n&#8211; \u1ed0ng h\u1ed9p 304: kg\/m = 0.00793 \u00d7 [a\u00d7b \u2212 (a \u2212 2t)(b \u2212 2t)].<br \/>\n\u0110i k\u00e8m v\u00ed d\u1ee5 v\u00e0 b\u1ea3ng quy \u0111\u1ed5i nhanh \u1edf tr\u00ean, b\u1ea1n c\u00f3 th\u1ec3 d\u1ef1 to\u00e1n ch\u00ednh x\u00e1c cho \u0111a s\u1ed1 t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf. Khi \u0111\u1eb7t h\u00e0ng s\u1ed1 l\u01b0\u1ee3ng l\u1edbn ho\u1eb7c k\u1ebft c\u1ea5u quan tr\u1ecdng, n\u00ean c\u00e2n ki\u1ec3m m\u1eabu v\u00e0 c\u1ed9ng d\u1ef1 ph\u00f2ng 2\u20135% \u0111\u1ec3 b\u00f9 dung sai s\u1ea3n xu\u1ea5t v\u00e0 h\u00ecnh h\u1ecdc th\u1ef1c t\u1ebf.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00f4ng th\u1ee9c t\u00ednh tr\u1ecdng l\u01b0\u1ee3ng Inox t\u1ea5m, \u1ed1ng v\u00e0 h\u1ed9p cho 201\/304\/316, h\u1eb1ng s\u1ed1 quy \u0111\u1ed5i, v\u00ed d\u1ee5 th\u1ef1c t\u1ebf v\u00e0 b\u1ea3ng quy \u0111\u1ed5i nhanh. T\u00ednh \u0111\u00fang ngay l\u1ea7n \u0111\u1ea7u.<\/p>\n","protected":false},"author":7,"featured_media":1024,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1199","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1199","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=1199"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1199\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1024"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}