Chemical composition of stainless steel
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This document provides information on the chemical composition specifications for various grades of stainless steel according to the JIS and AISI standards. It lists the allowable ranges for key elements like carbon, silicon, manganese, nickel, and chromium in different stainless steel categories including martensitic, ferritic, austenitic-ferritic, and austenitic grades. The categories and grades shown include specifications for elements that help determine properties like corrosion resistance.
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Chemical composition of stainless steel
- 1. Chemical composition of stainless steel Classification Specification Chemical Composition other JIS AISI C Si Mn P S Ni Cr Mo Cu N MartensiticGrades SUS403 403 Max.0.15 Max.0.50 Max.1.00 Max.0.040 Max.0.030 -1 11.50~13.00 - - - - SUS410 410 Max.0.15 Max.1.00 Max.1.00 Max.0.040 Max.0.030 -1 11.50~13.50 - - - - SUS410J1 - 0.08~0.18 Max.0.60 Max.1.00 Max.0.040 Max.0.030 -1 11.50~14.00 0.30~0.60 - - - SUS410F2 - Max.0.15 Max.1.00 Max.1.00 Max.0.040 Max.0.030 -1 11.50~13.50 - - - Pb0.050.30 SUS416 416 Max.0.15 Max.1.00 Max.1.25 Max.0.060 Min.0.15 -1 12.00~14.00 -2 - - - SUS420J1 420 0.16~0.25 Max.1.00 Max.1.00 Max.0.040 Max.0.030 -1 12.00~14.00 - - - - SUS420J2 420 0.26~0.40 Max.1.00 Max.1.00 Max.0.040 Max.0.030 -1 12.00~14.00 - - - - SUS420F 420F 0.26~0.40 Max.1.00 Max.1.25 Max.0.060 Min.0.15 -1 12.00~14.00 -2 - - - SUS420F2 - 0.26~0.40 Max.1.00 Max.1.00 Max.0.040 Max.0.030 -1 12.00~14.00 - - - Pb0.05~0.30 SUS431 431 Max.0.20 Max.1.00 Max.1.00 Max.0.040 Max.0.030 1.25~2.50 15.00~17.00 - - - - SUS440A 440A 0.60~0.75 Max.1.00 Max.1.00 Max.0.040 Max.0.030 -1 16.00~18.00 -3 - - - SUS440B 440B 0.75~0.95 Max.1.00 Max.1.00 Max.0.040 Max.0.030 -1 16.00~18.00 -3 - - - SUS440C 440C 0.95~1.20 Max.1.00 Max.1.00 Max.0.040 Max.0.030 -1 16.00~18.00 -3 - - - SUS440F S44020 0.95~1.20 Max.1.00 Max.1.25 Max.0.060 Min.0.15 -1 16.00~18.00 -3 - - - FerriticGrades SUS405 405 Max.0.08 Max.1.00 Max.1.00 Max.0.040 Max.0.030 - 11.50~14.50 - - - Al 0.10~0.30 SUS410L - Max.0.03 Max.1.00 Max.1.00 Max.0.040 Max.0.030 - 11.00~13.50 - - - - SUS430 430 Max.0.12 Max.0.75 Max.1.00 Max.0.040 Max.0.030 - 16.00~18.00 - - - - SUS430F 430F Max.0.12 Max.1.00 Max.1.25 Max.0.060 Min.0.15 - 16.00~18.00 -2 - - - SUS434 434 Max.0.12 Max.1.00 Max.1.00 Max.0.040 Max.0.030 - 16.00~18.00 0.75~1.25 - - - SUS447J1 - Max.0.01 Max.0.40 Max.0.40 Max.0.030 Max.0.020 - 28.50~32.00 1.50~2.50 - Max.0.015 - SUSXM27 - Max.0.01 Max.0.40 Max.0.40 Max.0.030 Max.0.020 - 25.00~27.50 0.75~1.50 - Max.0.015 - Austenitic Ferritic Grades SUS329J1 329 Max.0.08 Max.1.00 Max.1.50 Max.0.040 Max.0.030 3.00~6.00 23.00~28.00 1.00~3.00 - - - SUS329J3L S31803 Max.0.03 Max.1.00 Max.2.00 Max.0.040 Max.0.030 4.50~6.50 21.00~24.00 2.50~3.50 - 0.08~0.20 - SUS329J4L S31260 Max.0.03 Max.1.00 Max.1.50 Max.0.040 Max.0.030 5.50~7.50 24.00~26.00 2.50~3.50 - 0.08~0.30 - Austenitic Grades SUS201 201 Max.0.15 Max.1.00 5.50~7.50 Max.0.060 Max.0.030 3.50~5.50 16.00~18.00 - - 0.25?? - SUS202 202 Max.0.15 Max.1.00 7.50~10.00 Max.0.060 Max.0.030 4.00~6.00 17.00~19.00 - - Max.0.25 - SUS301 301 Max.0.15 Max.1.00 Max.2.00 Max.0.045 Max.0.030 6.00~8.00 16.00~18.00 - - - - SUS302 302 Max.0.15 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.00~10.00 17.00~19.00 - - - - SUS303 303 Max.0.15 Max.1.00 Max.2.00 Max.0.200 Min.0.15 8.00~10.00 17.00~19.00 -2 - - - SUS303Se 303Se Max.0.15 Max.1.00 Max.2.00 Max.0.200 Max.0.060 8.00~10.00 17.00~19.00 - - - Se Min.0.15 SUS303Cu - Max.0.15 Max.1.00 Max.3.00 Max.0.200 Min.0.15 8.00~10.00 17.00~19.00 -2 1.50~3.50 - - SUS304 304 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.00~10.50 18.00~20.00 - - - - SUS304L 304L Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 9.00~13.00 18.00~20.00 - - - - SUS304N1 304N Max.0.08 Max.1.00 Max.2.50 Max.0.045 Max.0.030 7.00~10.50 18.00~20.00 - - 0.10~0.25 - SUS304N2 - Max.0.08 Max.1.00 Max.2.50 Max.0.045 Max.0.030 7.50~10.50 18.00~20.00 - - 0.15~0.30 NbMax.0.15 SUS304LN 304LN Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.50~11.50 17.00~19.00 - - 0.12~0.22 - SUS304J3 - Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.00~10.50 17.00~19.00 - 1.00~3.00 - - SUS305 305 Max.0.12 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.50~13.00 17.00~19.00 - - - - SUS309S 309S Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 12.00~15.00 22.00~24.00 - - - - SUS310S 310S Max.0.08 Max.1.50 Max.2.00 Max.0.045 Max.0.030 19.00~22.00 24.00~26.00 - - - - SUS316 316 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.00~14.00 16.00~18.00 2.00~3.00 - - - SUS316L 316L Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 12.00~15.00 16.00~18.00 2.00~3.00 - - - SUS316N 316N Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.00~14.00 16.00~18.00 2.00~3.00 - 0.10~0.22 - SUS316LN 316LN Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.50~14.50 16.50~18.50 2.00~3.00 - 0.12~0.22 - SUS316Ti - Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.00~14.00 16.00~18.00 2.00~3.00 - - Ti Min.5xC% SUS316J1 - Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 10.00~14.00 17.00~19.00 1.20~2.75 1.00~2.50 - - SUS316J1L - Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 12.00~16.00 17.00~19.00 1.20~2.75 1.00~2.50 - - SUS316F - Max.0.08 Max.1.00 Max.2.00 Max.0.045 Min.0.10 10.00~14.00 16.00~18.00 2.00~3.00 - - - SUS317 317 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 11.00~15.00 18.00~20.00 3.00~4.00 - - - SUS317L 317L Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 11.00~15.00 18.00~20.00 3.00~4.00 - - - SUS317LN - Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 11.00~15.00 18.00~20.00 3.00~4.00 - 0.10~0.22 - SUS317J1 - Max.0.04 Max.1.00 Max.2.50 Max.0.045 Max.0.030 15.00~17.00 16.00~19.00 4.00~6.00 - - - SUS836L - Max.0.03 Max.1.00 Max.2.00 Max.0.045 Max.0.030 24.00~26.00 19.00~24.00 5.00~7.00 - Max.0.25 - SUS890L - Max.0.02 Max.1.00 Max.2.00 Max.0.045 Max.0.030 23.00~28.00 19.00~23.00 4.00~5.00 1.00~2.00 - - SUS321 321 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 9.00~13.00 17.00~19.00 - - - Ti Min.5xC% SUS347 347 Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 9.00~13.00 17.00~19.00 - - - NbMin.10xC% SUSXM7 304Cu Max.0.08 Max.1.00 Max.2.00 Max.0.045 Max.0.030 8.50~10.50 17.00~19.00 - 3.00~4.00 - - SUSXM15J1 - Max.0.08 3.00~5.00 Max.2.00 Max.0.045 Max.0.030 11.50~15.00 15.00~20.00 - - - - Precipitation Hardening Grades SUS630 S17400 Max.0.07 Max.1.00 Max.1.00 Max.0.040 Max.0.030 3.00~5.00 15.00~17.50 - 3.00~5.00 - Nb0.15~0.45 SUS631 S17700 Max.0.09 Max.1.00 Max.1.00 Max.0.040 Max.0.030 6.50~7.75 16.00~18.00 - - - Al 0.75~1.50 * SUS329J1 denotes austenitic and ferritic stainless steel. Note: Remarks: (1) May contain at most 0.6% Ni. 1) Ferritic SUS447J1 and SUSXM27 may contain at most 0.60% Ni. (2) May have at most 0.6% Mo added. SUS447J1 and SUSXM27 may contain at most 0.50% Ni, 0.20% Cu, and 0.50% Ni + Cu; and any alloy element other than listed can beadded if required. (3) May have at most 0.75% Mo added. 2) With SUSXM15J1 any alloy element other than listed can be added if required.