{"id":1576,"date":"2026-01-21T00:34:29","date_gmt":"2026-01-20T17:34:29","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/inox-201-uu-nhuoc-diem-so-sanh-304-va-ung-dung-phu-hop-nhat\/"},"modified":"2026-01-21T00:34:29","modified_gmt":"2026-01-20T17:34:29","slug":"inox-201-uu-nhuoc-diem-so-sanh-304-va-ung-dung-phu-hop-nhat","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/inox-201-uu-nhuoc-diem-so-sanh-304-va-ung-dung-phu-hop-nhat\/","title":{"rendered":"Inox 201: \u01afu nh\u01b0\u1ee3c \u0111i\u1ec3m, so s\u00e1nh 304 v\u00e0 \u1ee9ng d\u1ee5ng ph\u00f9 h\u1ee3p nh\u1ea5t"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-inox-201-la-gi-thanh-phan-ky-hieu-va-tieu-chuan\">Inox 201 l\u00e0 g\u00ec? Th\u00e0nh ph\u1ea7n, k\u00fd hi\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n<\/a><\/li>\n<li><a href=\"#toc-1-uu-diem-noi-bat-cua-inox-201\">\u01afu \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a inox 201<\/a><\/li>\n<li><a href=\"#toc-2-nhuoc-diem-va-rui-ro-khi-chon-inox-201\">Nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 r\u1ee7i ro khi ch\u1ecdn inox 201<\/a><\/li>\n<li><a href=\"#toc-3-ung-dung-phu-hop-nhat-cua-inox-201-kem-dieu-kien-k\">\u1ee8ng d\u1ee5ng ph\u00f9 h\u1ee3p nh\u1ea5t c\u1ee7a inox 201 (k\u00e8m \u0111i\u1ec1u ki\u1ec7n khuy\u1ebfn ngh\u1ecb)<\/a><\/li>\n<li><a href=\"#toc-4-so-sanh-nhanh-201-vs-304-vs-430\">So s\u00e1nh nhanh: 201 vs 304 vs 430<\/a><\/li>\n<li><a href=\"#toc-5-quy-cach-inox-201-pho-bien-tai-viet-nam\">Quy c\u00e1ch inox 201 ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam<\/a><\/li>\n<li><a href=\"#toc-6-huong-dan-gia-cong-han-inox-201-de-dat-do-ben-toi-\">H\u01b0\u1edbng d\u1eabn gia c\u00f4ng &#038; h\u00e0n inox 201 \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ed9 b\u1ec1n t\u1ed1i \u01b0u<\/a><\/li>\n<li><a href=\"#toc-7-bao-duong-de-han-che-tra-ri-tren-inox-201\">B\u1ea3o d\u01b0\u1ee1ng \u0111\u1ec3 h\u1ea1n ch\u1ebf \u201ctr\u00e0 r\u1ec9\u201d tr\u00ean inox 201<\/a><\/li>\n<li><a href=\"#toc-8-cach-phan-biet-201-voi-304-khi-mua-hang\">C\u00e1ch ph\u00e2n bi\u1ec7t 201 v\u1edbi 304 khi mua h\u00e0ng<\/a><\/li>\n<li><a href=\"#toc-9-thong-so-ky-thuat-tieu-bieu-tham-khao-thiet-ke\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ti\u00eau bi\u1ec3u (tham kh\u1ea3o thi\u1ebft k\u1ebf)<\/a><\/li>\n<li><a href=\"#toc-10-ket-luan-khi-nao-nen-chon-inox-201\">K\u1ebft lu\u1eadn: Khi n\u00e0o n\u00ean ch\u1ecdn inox 201?<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox 201 l\u00e0 m\u00e1c th\u00e9p kh\u00f4ng g\u1ec9 austenitic gi\u00e1 t\u1ed1t, ph\u1ed5 bi\u1ebfn trong gia c\u00f4ng trang tr\u00ed v\u00e0 \u0111\u1ed3 gia d\u1ee5ng t\u1ea1i Vi\u1ec7t Nam. B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch r\u00f5 \u01b0u \u0111i\u1ec3m, nh\u01b0\u1ee3c \u0111i\u1ec3m, ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt v\u00e0 \u1ee9ng d\u1ee5ng ph\u00f9 h\u1ee3p nh\u1ea5t c\u1ee7a inox 201, k\u00e8m so s\u00e1nh nhanh v\u1edbi 304 \u0111\u1ec3 b\u1ea1n ch\u1ecdn \u0111\u00fang v\u1eadt li\u1ec7u ngay t\u1eeb \u0111\u1ea7u d\u1ef1 \u00e1n.<\/p>\n<h2 id=\"toc-0-inox-201-la-gi-thanh-phan-ky-hieu-va-tieu-chuan\">Inox 201 l\u00e0 g\u00ec? Th\u00e0nh ph\u1ea7n, k\u00fd hi\u1ec7u v\u00e0 ti\u00eau chu\u1ea9n<\/h2>\n<p>&#8211; K\u00fd hi\u1ec7u qu\u1ed1c t\u1ebf: AISI 201, UNS S20100; theo JIS g\u1ea7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng SUS201.<br \/>\n&#8211; Ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m d\u1ea1ng t\u1ea5m\/cu\u1ed9n: ASTM A240\/A240M.<br \/>\n&#8211; Thu\u1ed9c h\u1ecd austenitic, niken th\u1ea5p (low-Ni), d\u00f9ng Mn v\u00e0 N \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh austenite thay cho m\u1ed9t ph\u1ea7n Ni.<\/p>\n<h3>Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc \u0111i\u1ec3n h\u00ecnh (ASTM A240, UNS S20100)<\/h3>\n<p>&#8211; C \u2264 0,15%<br \/>\n&#8211; Mn 5,5\u20137,5%<br \/>\n&#8211; Si \u2264 1,0%<br \/>\n&#8211; P \u2264 0,060%<br \/>\n&#8211; S \u2264 0,030%<br \/>\n&#8211; Cr 16,0\u201318,0%<br \/>\n&#8211; Ni 3,5\u20135,5%<br \/>\n&#8211; N \u2264 0,25%<br \/>\nGhi ch\u00fa: Tr\u00ean th\u1ecb tr\u01b0\u1eddng c\u00f2n c\u00f3 201L (C th\u1ea5p h\u01a1n) gi\u00fap h\u1ea1n ch\u1ebf nh\u1ea1y c\u1ea3m h\u00f3a khi h\u00e0n.<\/p>\n<h3>T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc (tr\u1ea1ng th\u00e1i \u1ee7 \u2013 tham kh\u1ea3o datasheet nh\u00e0 s\u1ea3n xu\u1ea5t)<\/h3>\n<p>&#8211; \u0110\u1ed9 b\u1ec1n k\u00e9o (UTS): kho\u1ea3ng 650\u2013860 MPa<br \/>\n&#8211; Gi\u1edbi h\u1ea1n ch\u1ea3y (YS 0,2%): kho\u1ea3ng 275\u2013380 MPa<br \/>\n&#8211; \u0110\u1ed9 gi\u00e3n d\u00e0i: ~ 40%<br \/>\n&#8211; \u0110\u1ed9 c\u1ee9ng: \u2264 95 HRB (annealed)<br \/>\n&#8211; T\u1ef7 tr\u1ecdng: ~7,9 g\/cm\u00b3<br \/>\n\u0110\u1eb7c tr\u01b0ng: b\u1ec1n h\u01a1n 304 \u1edf c\u00f9ng tr\u1ea1ng th\u00e1i, h\u00f3a b\u1ec1n bi\u1ebfn d\u1ea1ng nhanh (work hardening) n\u00ean ch\u1ecbu l\u1ef1c t\u1ed1t sau c\u00e1n\/\u00e9p ngu\u1ed9i.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o: ASTM A240\/A240M; Cleveland-Cliffs (AK Steel) Stainless Steel 201 Data Sheet; Nickel Institute \u2013 Stainless Steels: Properties, Grades and Applications.<\/p>\n<h2 id=\"toc-1-uu-diem-noi-bat-cua-inox-201\">\u01afu \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a inox 201<\/h2>\n<p>&#8211; T\u1ed1i \u01b0u chi ph\u00ed: H\u00e0m l\u01b0\u1ee3ng Ni th\u1ea5p gi\u00fap gi\u00e1 th\u1ea5p h\u01a1n 304 \u0111\u00e1ng k\u1ec3 trong c\u00f9ng quy c\u00e1ch.<br \/>\n&#8211; C\u01a1 t\u00ednh cao \u1edf tr\u1ea1ng th\u00e1i ngu\u1ed9i: H\u00f3a b\u1ec1n nhanh, th\u00edch h\u1ee3p cho s\u1ea3n ph\u1ea9m y\u00eau c\u1ea7u \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t ho\u1eb7c ch\u1ecbu va \u0111\u1eadp nh\u1eb9 (khung, ph\u1ee5 ki\u1ec7n).<br \/>\n&#8211; \u0110\u1ed9 d\u1ebbo t\u1ea1o h\u00ecnh t\u1ed1t: C\u00e1n ngu\u1ed9i, u\u1ed1n, d\u1eadp k\u00e9o s\u00e2u \u1edf m\u1ee9c v\u1eeba ph\u1ea3i khi d\u00f9ng b\u00f4i tr\u01a1n \u0111\u00fang c\u00e1ch.<br \/>\n&#8211; H\u00e0n t\u1ed1t: MIG\/TIG, h\u1ed3 quang tay \u0111\u1ec1u ph\u00f9 h\u1ee3p; d\u00f9ng v\u1eadt li\u1ec7u h\u00e0n gi\u00e0u Ni (308L\/309L) \u0111\u1ec3 gi\u1ea3m n\u1ee9t n\u00f3ng v\u00e0 gi\u1eef t\u1ed5 ch\u1ee9c austenite \u1ed5n \u0111\u1ecbnh.<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t \u0111\u1eb9p: C\u00f3 \u0111\u1ee7 b\u1ec1 m\u1eb7t 2B, BA (b\u00f3ng g\u01b0\u01a1ng), HL\/No.4 cho trang tr\u00ed n\u1ed9i th\u1ea5t.<\/p>\n<h2 id=\"toc-2-nhuoc-diem-va-rui-ro-khi-chon-inox-201\">Nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 r\u1ee7i ro khi ch\u1ecdn inox 201<\/h2>\n<p>&#8211; \u0110\u1ed9 b\u1ec1n \u0103n m\u00f2n th\u1ea5p h\u01a1n 304: D\u1ec5 b\u1ecb r\u1ed7 (pitting), \u1ed1 v\u00e0ng \u201ctr\u00e0 r\u1ec9\u201d trong m\u00f4i tr\u01b0\u1eddng \u1ea9m, c\u00f3 chloride (g\u1ea7n bi\u1ec3n, h\u1ed3 b\u01a1i, khu b\u1ebfp m\u1eb7n).<br \/>\n&#8211; Nh\u1ea1y c\u1ea3m \u0103n m\u00f2n k\u1ebd h\u1edf\/\u0111i\u1ec3m h\u00e0n: \u0110\u1eb7c bi\u1ec7t v\u1edbi b\u1ea3n 201 C cao. Ch\u1ecdn 201L v\u00e0 x\u1eed l\u00fd th\u1ee5 \u0111\u1ed9ng h\u00f3a sau h\u00e0n s\u1ebd b\u1ec1n h\u01a1n.<br \/>\n&#8211; T\u1eeb t\u00ednh sau gia c\u00f4ng: \u1ede tr\u1ea1ng th\u00e1i \u1ee7 g\u1ea7n nh\u01b0 kh\u00f4ng nhi\u1ec5m t\u1eeb, nh\u01b0ng s\u1ebd h\u00fat nam ch\u00e2m sau u\u1ed1n\/c\u00e1n do martensite bi\u1ebfn d\u1ea1ng \u2013 kh\u00f4ng ph\u00f9 h\u1ee3p khi y\u00eau c\u1ea7u \u201ckh\u00f4ng nhi\u1ec5m t\u1eeb tuy\u1ec7t \u0111\u1ed1i\u201d.<br \/>\n&#8211; Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t h\u1ea1n ch\u1ebf: Kh\u00f4ng khuy\u1ebfn ngh\u1ecb cho m\u00f4i tr\u01b0\u1eddng >600\u00b0C d\u00e0i h\u1ea1n.<br \/>\n&#8211; Bi\u1ebfn \u0111\u1ed9ng ch\u1ea5t l\u01b0\u1ee3ng th\u1ecb tr\u01b0\u1eddng: M\u1ed9t s\u1ed1 l\u00f4 \u201cpseudo-201\u201d Ni qu\u00e1 th\u1ea5p d\u1ec5 g\u1ec9; c\u1ea7n ki\u1ec3m ch\u1ee9ng m\u00e1c b\u1eb1ng MTC\/XRF.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o: Nickel Institute \u2013 Guidelines for Corrosion; Cleveland-Cliffs Type 201; Outokumpu datasheets v\u1ec1 nh\u00f3m 200-series.<\/p>\n<h2 id=\"toc-3-ung-dung-phu-hop-nhat-cua-inox-201-kem-dieu-kien-k\">\u1ee8ng d\u1ee5ng ph\u00f9 h\u1ee3p nh\u1ea5t c\u1ee7a inox 201 (k\u00e8m \u0111i\u1ec1u ki\u1ec7n khuy\u1ebfn ngh\u1ecb)<\/h2>\n<p>&#8211; Trang tr\u00ed n\u1ed9i th\u1ea5t, v\u00e1ch, n\u1eb9p, ph\u00e0o ch\u1ec9, tay v\u1ecbn trong nh\u00e0: M\u00f4i tr\u01b0\u1eddng kh\u00f4\/\u0111i\u1ec1u h\u00f2a.<br \/>\n&#8211; \u0110\u1ed3 gia d\u1ee5ng, ph\u1ee5 ki\u1ec7n b\u1ebfp kh\u00f4: K\u1ec7 ch\u00e9n, th\u1edbt, \u1ea5m, dao k\u00e9o ph\u1ed5 th\u00f4ng; v\u1ec7 sinh v\u00e0 lau kh\u00f4 ngay sau khi ti\u1ebfp x\u00fac m\u1eb7n\/axit nh\u1eb9.<br \/>\n&#8211; V\u1ecf, \u1ed1p m\u00e1y, th\u00f9ng xe \u0111\u1ea9y trong nh\u00e0 x\u01b0\u1edfng kh\u00f4: \u01afu ti\u00ean b\u1ec1 m\u1eb7t 2B\/No.4\/HL.<br \/>\n&#8211; Khung k\u1ec7 tr\u01b0ng b\u00e0y, b\u00e0n gh\u1ebf qu\u00e1n c\u00e0 ph\u00ea trong nh\u00e0; \u1ed1ng h\u1ed9p trang tr\u00ed d\u00e0y 0,6\u20131,2 mm.<br \/>\n&#8211; \u1ed0ng trang tr\u00ed, lan can trong nh\u00e0; b\u1ea3ng hi\u1ec7u, ch\u1eef n\u1ed5i n\u1ed9i th\u1ea5t.<\/p>\n<p>Kh\u00f4ng khuy\u1ebfn ngh\u1ecb d\u00f9ng 201 cho:<br \/>\n&#8211; C\u00f4ng tr\u00ecnh ngo\u00e0i tr\u1eddi g\u1ea7n bi\u1ec3n, khu v\u1ef1c s\u01b0\u01a1ng mu\u1ed1i ho\u1eb7c m\u01b0a axit.<br \/>\n&#8211; Thi\u1ebft b\u1ecb ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi chloride\/axit ki\u1ec1m: b\u1ed3n n\u01b0\u1edbc, b\u1ed3n mu\u1ed1i, khu b\u1ebfp c\u00f4ng nghi\u1ec7p n\u1ea5u m\u1eb7n, h\u1ed3 b\u01a1i.<br \/>\n&#8211; Ng\u00e0nh h\u00f3a ch\u1ea5t, th\u1ef1c ph\u1ea9m c\u00f3 CIP m\u1ea1nh ho\u1eb7c y\u00eau c\u1ea7u v\u1ec7 sinh nghi\u00eam ng\u1eb7t \u2013 chuy\u1ec3n sang 304\/316.<\/p>\n<h2 id=\"toc-4-so-sanh-nhanh-201-vs-304-vs-430\">So s\u00e1nh nhanh: 201 vs 304 vs 430<\/h2>\n<p>&#8211; Th\u00e0nh ph\u1ea7n:<br \/>\n  &#8211; 201: Cr 16\u201318%, Ni 3,5\u20135,5%, Mn cao.<br \/>\n  &#8211; 304: Cr 18\u201320%, Ni 8\u201310,5% \u2192 ch\u1ed1ng g\u1ec9 t\u1ed1t h\u01a1n.<br \/>\n  &#8211; 430 (ferritic): Cr ~16\u201318%, g\u1ea7n nh\u01b0 kh\u00f4ng Ni \u2192 r\u1ebb, nhi\u1ec5m t\u1eeb, ch\u1ed1ng g\u1ec9 k\u00e9m h\u01a1n 304 v\u00e0 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng\/nh\u1ec9nh h\u01a1n ho\u1eb7c k\u00e9m 201 t\u00f9y m\u00f4i tr\u01b0\u1eddng.<br \/>\n&#8211; \u0110\u1ed9 b\u1ec1n \u0103n m\u00f2n:<br \/>\n  &#8211; 304 t\u1ed1t nh\u1ea5t trong ba m\u00e1c, d\u00f9ng \u0111\u01b0\u1ee3c ngo\u00e0i tr\u1eddi (kh\u00f4ng bi\u1ec3n).<br \/>\n  &#8211; 201 trung b\u00ecnh, ph\u00f9 h\u1ee3p trong nh\u00e0, kh\u00f4 r\u00e1o.<br \/>\n  &#8211; 430 th\u1ea5p, ch\u1ee7 y\u1ebfu n\u1ed9i th\u1ea5t kh\u00f4 ho\u1eb7c chi ti\u1ebft \u00edt quan tr\u1ecdng.<br \/>\n&#8211; T\u1eeb t\u00ednh:<br \/>\n  &#8211; 201\/304: kh\u00f4ng nhi\u1ec5m t\u1eeb \u1edf tr\u1ea1ng th\u00e1i \u1ee7, d\u1ec5 nhi\u1ec5m t\u1eeb sau gia c\u00f4ng ngu\u1ed9i.<br \/>\n  &#8211; 430: nhi\u1ec5m t\u1eeb r\u00f5 r\u1ec7t.<br \/>\n&#8211; C\u01a1 t\u00ednh v\u00e0 gia c\u00f4ng:<br \/>\n  &#8211; 201 h\u00f3a b\u1ec1n nhanh, b\u1ec1n v\u1eefng sau c\u00e1n ngu\u1ed9i; c\u1ea7n l\u1ef1c t\u1ea1o h\u00ecnh cao h\u01a1n 304.<br \/>\n  &#8211; 304 t\u1ea1o h\u00ecnh \u201cd\u1ec5 ch\u1ecbu\u201d h\u01a1n, c\u1eeda s\u1ed5 \u1ee9ng d\u1ee5ng r\u1ed9ng.<br \/>\n  &#8211; 430 t\u1ea1o h\u00ecnh v\u1eeba ph\u1ea3i, h\u00e0n k\u00e9m h\u01a1n austenitic.<br \/>\n&#8211; Gi\u00e1:<br \/>\n  &#8211; Th\u1ea5p \u2192 cao: 430 < 201 < 304 (th\u1ef1c t\u1ebf c\u00f2n ph\u1ee5 thu\u1ed9c cu\u1ed9n\/l\u00f4 v\u00e0 th\u1ecb tr\u01b0\u1eddng Ni\/Mn).\n\nG\u1ee3i \u00fd ch\u1ecdn m\u00e1c:\n- \u01afu ti\u00ean \u0111\u1ed9 b\u1ec1n g\u1ec9 v\u00e0 ngo\u00e0i tr\u1eddi: 304 (ho\u1eb7c 316 n\u1ebfu c\u00f3 chloride).\n- \u01afu ti\u00ean chi ph\u00ed, m\u00f4i tr\u01b0\u1eddng kh\u00f4, trang tr\u00ed n\u1ed9i th\u1ea5t: 201.\n- C\u1ea7n nhi\u1ec5m t\u1eeb v\u00e0 gi\u00e1 th\u1ea5p: 430.\n\n\n\n<h2 id=\"toc-5-quy-cach-inox-201-pho-bien-tai-viet-nam\">Quy c\u00e1ch inox 201 ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam<\/h2>\n<p>&#8211; T\u1ea5m\/cu\u1ed9n c\u00e1n ngu\u1ed9i: d\u00e0y 0,3\u20133,0 mm; kh\u1ed5 1.000\/1.219 mm; b\u1ec1 m\u1eb7t 2B, BA, No.4\/HL, ph\u1ee7 PVC.<br \/>\n&#8211; T\u1ea5m c\u00e1n n\u00f3ng: d\u00e0y >3 mm (\u00edt ph\u1ed5 bi\u1ebfn h\u01a1n \u1edf 201).<br \/>\n&#8211; \u1ed0ng \u2013 h\u1ed9p trang tr\u00ed: d\u00e0y 0,4\u20131,5 mm; d\u00e0i 6 m; b\u1ec1 m\u1eb7t BA\/HL\/No.4.<br \/>\n&#8211; D\u00e2y, \u0111ai: d\u00f9ng cho ph\u1ee5 ki\u1ec7n, k\u1eb9p, l\u00f2 xo nh\u1eb9.<br \/>\nL\u01b0u \u00fd: H\u00e3y y\u00eau c\u1ea7u MTC (Mill Test Certificate) ghi r\u00f5 UNS S20100\/201L, ti\u00eau chu\u1ea9n ASTM A240\/A554 (cho \u1ed1ng), b\u1ec1 m\u1eb7t v\u00e0 sai l\u1ec7ch \u0111\u1ed9 d\u00e0y.<\/p>\n<h2 id=\"toc-6-huong-dan-gia-cong-han-inox-201-de-dat-do-ben-toi-\">H\u01b0\u1edbng d\u1eabn gia c\u00f4ng &#038; h\u00e0n inox 201 \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ed9 b\u1ec1n t\u1ed1i \u01b0u<\/h2>\n<p>&#8211; T\u1ea1o h\u00ecnh:<br \/>\n  &#8211; D\u00f9ng b\u00e1n k\u00ednh u\u1ed1n trong \u2265 1,0\u20131,5 l\u1ea7n chi\u1ec1u d\u00e0y \u0111\u1ec3 h\u1ea1n ch\u1ebf n\u1ee9t m\u00e9p.<br \/>\n  &#8211; B\u00f4i tr\u01a1n \u0111\u1ea7y \u0111\u1ee7 khi d\u1eadp\/k\u00e9o s\u00e2u; thay d\u1ee5ng c\u1ee5 m\u00f2n \u0111\u1ec3 tr\u00e1nh x\u01b0\u1edbc.<br \/>\n  &#8211; Ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 v\u00e0 l\u01b0\u1ee3ng bi\u1ebfn d\u1ea1ng m\u1ed7i b\u01b0\u1edbc v\u00ec 201 work-hardening nhanh.<br \/>\n&#8211; H\u00e0n:<br \/>\n  &#8211; V\u1eadt li\u1ec7u h\u00e0n khuy\u1ebfn ngh\u1ecb: ER308L\/309L (MIG\/TIG) ho\u1eb7c que E308L-16 (SMAW) \u0111\u1ec3 gi\u1ea3m n\u1ee9t n\u00f3ng.<br \/>\n  &#8211; Gi\u1eef nhi\u1ec7t \u0111\u1ea7u v\u00e0o v\u1eeba ph\u1ea3i, tr\u00e1nh v\u00f9ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec7t qu\u00e1 r\u1ed9ng; l\u00e0m s\u1ea1ch k\u1ef9 tr\u01b0\u1edbc\/sau h\u00e0n.<br \/>\n  &#8211; Th\u1ee5 \u0111\u1ed9ng h\u00f3a sau h\u00e0n b\u1eb1ng dung d\u1ecbch g\u1ed1c nitric\/citric theo h\u01b0\u1edbng d\u1eabn nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 ph\u1ee5c h\u1ed3i l\u1edbp th\u1ee5 \u0111\u1ed9ng Cr2O3.<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t:<br \/>\n  &#8211; \u0110\u00e1nh x\u01b0\u1edbc\/\u0111\u00e1nh b\u00f3ng \u0111\u1ed3ng \u0111\u1ec1u; ph\u1ee7 phim b\u1ea3o v\u1ec7 trong su\u1ed1t qu\u00e1 tr\u00ecnh gia c\u00f4ng l\u1eabn v\u1eadn chuy\u1ec3n.<\/p>\n<h2 id=\"toc-7-bao-duong-de-han-che-tra-ri-tren-inox-201\">B\u1ea3o d\u01b0\u1ee1ng \u0111\u1ec3 h\u1ea1n ch\u1ebf \u201ctr\u00e0 r\u1ec9\u201d tr\u00ean inox 201<\/h2>\n<p>&#8211; V\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 b\u1eb1ng dung d\u1ecbch trung t\u00ednh pH~7; tr\u00e1nh h\u00f3a ch\u1ea5t ch\u1ee9a chloride.<br \/>\n&#8211; R\u1eeda \u2013 lau kh\u00f4 ngay sau khi ti\u1ebfp x\u00fac mu\u1ed1i, n\u01b0\u1edbc bi\u1ec3n, n\u01b0\u1edbc m\u1eafm, ch\u1ea5t t\u1ea9y clo.<br \/>\n&#8211; Tr\u00e1nh b\u1eaby k\u1ebd h\u1edf: thi\u1ebft k\u1ebf l\u1ed7 tho\u00e1t n\u01b0\u1edbc, bo tr\u00f2n m\u00e9p, tr\u00e1m k\u00edn khe b\u1ea9n.<br \/>\n&#8211; V\u1edbi c\u00f4ng tr\u00ecnh ngo\u00e0i tr\u1eddi bu\u1ed9c d\u00f9ng 201: t\u0103ng t\u1ea7n su\u1ea5t r\u1eeda n\u01b0\u1edbc ng\u1ecdt v\u00e0 ph\u1ee7 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t (clear coat) \u2013 gi\u1ea3i ph\u00e1p t\u1ea1m th\u1eddi, kh\u00f4ng thay th\u1ebf 304\/316.<\/p>\n<h2 id=\"toc-8-cach-phan-biet-201-voi-304-khi-mua-hang\">C\u00e1ch ph\u00e2n bi\u1ec7t 201 v\u1edbi 304 khi mua h\u00e0ng<\/h2>\n<p>&#8211; Nam ch\u00e2m kh\u00f4ng \u0111\u1ee7: 201\/304 \u0111\u1ec1u c\u00f3 th\u1ec3 nhi\u1ec5m t\u1eeb sau gia c\u00f4ng \u2013 kh\u00f4ng d\u00f9ng l\u00e0m b\u1eb1ng ch\u1ee9ng duy nh\u1ea5t.<br \/>\n&#8211; Ki\u1ec3m tra nhanh t\u1ea1i ch\u1ed7:<br \/>\n  &#8211; S\u00fang XRF ph\u00e2n t\u00edch th\u00e0nh ph\u1ea7n l\u00e0 \u0111\u00e1ng tin c\u1eady nh\u1ea5t.<br \/>\n  &#8211; B\u1ed9 test Ni (DMG spot test) tr\u00ean b\u1ec1 m\u1eb7t m\u00e0i s\u1ea1ch: 304 ph\u1ea3n \u1ee9ng m\u1ea1nh h\u01a1n nh\u1edd Ni cao.<br \/>\n&#8211; H\u1ed3 s\u01a1 ch\u1ea5t l\u01b0\u1ee3ng:<br \/>\n  &#8211; Y\u00eau c\u1ea7u MTC theo ASTM, ghi th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh, nhi\u1ec7t luy\u1ec7n.<br \/>\n  &#8211; Ki\u1ec3m tra in\/kh\u1eafc tr\u00ean t\u1ea5m\/\u1ed1ng (grade marking) kh\u1edbp h\u00f3a \u0111\u01a1n.<br \/>\n&#8211; Th\u1eed nghi\u1ec7m m\u00f4 ph\u1ecfng s\u1eed d\u1ee5ng:<br \/>\n  &#8211; Phun s\u01b0\u01a1ng m\u1eb7n (salt spray) ho\u1eb7c \u0111\u1eb7t m\u1eabu trong m\u00f4i tr\u01b0\u1eddng \u1ea9m chloride c\u00f3 ki\u1ec3m so\u00e1t \u0111\u1ec3 so s\u00e1nh t\u01b0\u01a1ng \u0111\u1ed1i (n\u1ed9i b\u1ed9 x\u01b0\u1edfng).<\/p>\n<h2 id=\"toc-9-thong-so-ky-thuat-tieu-bieu-tham-khao-thiet-ke\">Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ti\u00eau bi\u1ec3u (tham kh\u1ea3o thi\u1ebft k\u1ebf)<\/h2>\n<p>&#8211; Th\u00e0nh ph\u1ea7n: theo ASTM A240 cho UNS S20100.<br \/>\n&#8211; C\u01a1 t\u00ednh \u1ee7: UTS ~ 650\u2013860 MPa; YS ~ 275\u2013380 MPa; EL ~ 40%; HRB \u2264 95.<br \/>\n&#8211; T\u1ef7 tr\u1ecdng: ~7,9 g\/cm\u00b3; D\u1eabn nhi\u1ec7t v\u00e0 gi\u00e3n n\u1edf t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nh\u00f3m austenitic.<br \/>\n&#8211; Nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c khuy\u1ebfn ngh\u1ecb: d\u01b0\u1edbi ~600\u00b0C cho t\u00ednh n\u0103ng \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ec1n g\u1ec9 h\u1ee3p l\u00fd.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o ch\u00ednh:<br \/>\n&#8211; ASTM A240\/A240M \u2013 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip.<br \/>\n&#8211; Cleveland-Cliffs (AK Steel): Stainless Steel Type 201 Data Sheet.<br \/>\n&#8211; Nickel Institute: Stainless Steels \u2013 Properties, Grades and Corrosion Resistance Guides.<br \/>\n&#8211; Outokumpu: 200-series stainless steel grade information.<\/p>\n<h2 id=\"toc-10-ket-luan-khi-nao-nen-chon-inox-201\">K\u1ebft lu\u1eadn: Khi n\u00e0o n\u00ean ch\u1ecdn inox 201?<\/h2>\n<p>&#8211; Ch\u1ecdn 201 khi b\u1ea1n c\u1ea7n t\u1ed1i \u01b0u chi ph\u00ed cho h\u1ea1ng m\u1ee5c trong nh\u00e0, kh\u00f4 r\u00e1o, trang tr\u00ed\/gi\u00e1 k\u1ec7\/\u1ed1p v\u1ecf, ch\u1ecbu \u0103n m\u00f2n v\u1eeba ph\u1ea3i v\u00e0 c\u00f3 k\u1ebf ho\u1ea1ch v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3.<br \/>\n&#8211; Tr\u00e1nh 201 cho m\u00f4i tr\u01b0\u1eddng \u1ea9m m\u1eb7n, ngo\u00e0i tr\u1eddi ven bi\u1ec3n, b\u1ed3n\/b\u1ebfp m\u1eb7n, h\u00f3a ch\u1ea5t \u2013 thay b\u1eb1ng 304\/316 \u0111\u1ec3 an to\u00e0n v\u00f2ng \u0111\u1eddi.<br \/>\n&#8211; \u0110\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng b\u1eb1ng MTC, ki\u1ec3m tra th\u00e0nh ph\u1ea7n (XRF\/DMG), quy tr\u00ecnh h\u00e0n \u2013 th\u1ee5 \u0111\u1ed9ng h\u00f3a \u0111\u00fang k\u1ef9 thu\u1eadt.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn m\u00e1c, quy c\u00e1ch, ho\u1eb7c b\u00e1o gi\u00e1 cu\u1ed9n\/t\u1ea5m\/\u1ed1ng inox 201 ti\u00eau chu\u1ea9n ASTM? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n k\u1ef9 thu\u1eadt v\u00e0 gi\u00e1 t\u1ed1t:<br \/>\n&#8211; Hotline: 0343.417.281<br \/>\n&#8211; Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ph\u00e2n t\u00edch inox 201 t\u1eeb th\u00e0nh ph\u1ea7n, c\u01a1 t\u00ednh \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n \u0103n m\u00f2n. So s\u00e1nh 304 v\u00e0 g\u1ee3i \u00fd \u1ee9ng d\u1ee5ng ph\u00f9 h\u1ee3p nh\u1ea5t cho x\u01b0\u1edfng, c\u00f4ng tr\u00ecnh \u0111\u1ec3 t\u1ed1i \u01b0u chi ph\u00ed.<\/p>\n","protected":false},"author":7,"featured_media":1059,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1576","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\/1576","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=1576"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1576\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1059"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}