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Chemical Composition Of Stainless Steel

Home › Technical Info › Chemical Composition Of Stainless Steel


Chemical Composition Of Stainless Steel

Grade   AISI Chemical Composition – Per cent Nearest Equivalent Specification
C Max Mn Max P Max S Max Si Max Cr Ni Mo Other Element I.S. En’
AUSTENITIC
201 0.15 5.5/7.5 0.06 0.03 1 16.0/18.0 3.5/5.5 - - - -
202 0.15 7.5/10 0.06 0.03 1 17.0/19.0 4.0/06 - - - -
301 0.15 2.0max 0.45 0.04 1 16.0/18.0 6.0/08 - - 10Cr17Ni7 -
302 0.15 2 0.45 0.03 1 17.0/19.0 8.0/10.0 - E-4-3-4% 07Cr18Ni9 En-58A
302HQ 0.03 2 0.45 0.03 1 17.0/19.0 9.0/10.0 - CU:3-4.0 - -
303 0.15 2 0.45 0.15min 1 17.0/19.0 8.0/10.0 - E-4-1%max 15Cr18Ni9 En-58M
303EHS 0.15 2 0.02 0.3-0.33 1 17.0/19.0 8.0/10.0 - CU:1%Max - -
304 0.08 2 0.045 0.03 1 18.0/20.00 8.0/10.0 - - 04Cr18Ni10 En-58E
304L 0.03 2 0.045 0.03 1 18.0/20.00 8.0/10.0 - - 02Cr18Ni11 -
304H.C 0.05 2 0.045 0.03 1 18.0/20.00 8.5/9.5 - CU:2-2.50 - -
308 0.02 2 0.04 0.03 1 18.0/20.00 10.0/12.0 - - - -
308LER 0.03 1.5/2.0 0.025 0.02 0.5 19.0/21.0 9.5/11.0 - - - -
309 0.08 2.0max 0.045 0.03 1 22.0/24.0 12.0/15.0 - - 20Cr24Ni12 -
309LER 0.02 1.5/2.5 0.02 0.015 0.5 23.0/25.0 12.0/14.0 - - - -
309S 0.2 2 0.045 0.03 1 22.0/24.0 12.0/15.0 - - - -
310 0.03 2 0.045 0.03 1.5 24.0/26.0 19.0/22.0 - - 10Cr25Ni12 -
310S 0.08 2 0.045 0.03 1.5 24.0/26.0 19.0/22.0 - - - -
314 0.25 2 0.04 0.03 1.5to3 25.0/26.0 19.0/22.0 - - - -
316 0.08 2 0.045 0.03 1 16.0/18.0 10.0/14.0 2.0/3.0 - 04Cr17Ni12Mo2 En 58H
316L 0.03 2 0.045 0.03 1 16.0/18.0 10.0/14.0 2.0/3.0 - 03Cr17Ni12Mo2 -
316LER 0.02 1.5/2.0 0.02 0.02 0.5 18.0/20.0 12.0/14.0 2.0/2.75 - - -
316LER 0.08 2 0.045 0.03 1 16.0/18.0 10.0/14.0 2.0/3.0 Ti5xCmin - -
317 0.08 2 0.045 0.03 1 18.0/20.0 11.0/15.0 3.0/40   - -
317L 0.03 2 0.045 0.03 1 18.0/20.0 11.0/15.0 3.0/40 N:100/0.22 - -
317LN 0.03 2 0.045 0.03 1 18.0/20.0 11.0/15.0 3.0/40 N:100/0.22 - -
321 0.08 2 0.045 0.03 1 17.0/19.0 9.0/12.0 - Ti5xCmin 04Cr18Ni10Ti20 En-58C
347 0.08 2 0.045 0.03 1 17.0/19.0 9.0/12.0 - Nb/Ta10xCmin 04Cr18Ni10Nb-40 En-58G
904 L 0.02 2 0.045 0.035 1 19.0/23.0 23.0/28.0 40-50 CU1-12 - -
FERRITIC
410 0.15 0.15 0.04 0.03 1 11.50/13.5 0.6 - - 12Cr13 En-56A
416 0.15 0.15 0.06 0.15min 1 12.0/14.0 1.25/2.50 - - - -
420 0.15min 0.15min 0.04 0.03 1 12.0/14.0 0.6 - - - En-56C&D
430 0.12 0.12 0.04 0.03 1 16.0/18.0 0.6 - - 07Cr17 En-60
430L 0.03 0.03 0.04 0.03 1 16.0/18.0 0.6 - - - -
430F 0.12 0.12 0.06 0.15min 1 16.0/18.0 0.6 - - - -
431 0.2 0.2 0.04 0.03 1 15.0/17.0 1.25/2.50 - - - En-57
17.4-PH 0.07 0.07 0.04 0.03 1 15.0/17.0 3.0/5.0 - NB:0.15/0.45 - -
DUPLEX
1905 0.03 1.2/1.8 0.04 0.03 1.2/2 18.0/19.0 4.3/5.2 2.5/3 N:0.5/0.10 - -
2205 0.03 2 0.03 0.02 1 21.0/23.0 4.5/6.5 2.5/3 N:0.8/0.20 - -
2506 0.08 1 0.04 0.03 0.75 26.0/28.0 4/5 1.3/2 - - -