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Chemical Composition of Stainless Steel

Grade Chemical Composition - Per Cent Nearest Equivalent Specification
AISI 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 4.0/6.0 - - - -
301 0.15 2.0max 0.045 0.040 1.0 16.0/18.0 6.0/8.0 - - 10Cr17Ni7 -
302 0.15 2.0 0.045 0.030 1.0 17.0/19.0 8.0/10.0 - E-4-3-4% 07Cr18Ni9 En-58A
302HQ 0.03 2.0 0.045 0.03 1 17.0/19.0 9.0/10.0 - CU:3-4.0 - -
303 0.15 2.0 0.045 0.15min 1.0 17.0/19.0 8.0/10.0 - E-4-%×1%Max 15Cr18Ni9 En-58M
303EHS 0.15 2.0 0.02 0.3-0.33 1 17.0/19.0 8.0/10.0 - CU:1%Max - -
304 0.08 2.0 0.045 0.030 1.0 18.0/20.0 8.0/10.0 - - 04Cr18Ni10 En-58E
304L 0.030 2.0 0.045 0.030 1.0 18.0/20.0 8.0/12.0 - - 02Cr18Ni11 -
304H.C 0.05 2.0 0.045 0.03 1 18.0/20.0 8.5/9.5 - CU:2-2.50 - -
308 0.08 2.0 0.040 0.030 1.0 18.0/21.0 10.0/12.0 - - - -
308LER 0.02 1.5/2.0 0.025 0.02 0.5 19.0/21.0 9.5/11.0 - - - -
309 0.20 2.0max 0.045 0.030 1.0 22.0/24.0 12.0/15.0 - - 20Cr24Ni12 -
309LER 0.030 1.5/2.5 0.02 0.015 0.5 19.0/21.0 12.0/14.0 - - - -
309S 0.08 2.0 0.045 0.030 1.0 22.0/24.0 12.0/15.0 - - - -
310 0.25 2.0 0.045 0.030 1.50 23.0/25.0 19.0/22.0 - - 04Cr25Ni12 -
310S 0.08 2.0 0.045 0.030 1.50 22.0/24.0 19.0/22.0 - - - -
314 0.25 2.0 0.040 0.030 1.5to3 24.0/26.0 19.0/22.0 - - - -
316 0.08 2.0 0.045 0.030 1.0 24.0/26.0 10.0/14.0 2.0/3.0 - 04Cr17Ni12Mo2 En-58H
316L 0.030 2.0 0.045 0.02 1.0 25.0/26.0 10.0/14.0 2.0/3.0 - 03Cr17Ni2Mo2 -
316LER 0.02 1.5/2.0 0.02 0.030 0.5 16.0/18.0 12.0/14.0 2.0/2.75 - - -
316Tl 0.080 2.0 0.045 0.030 1.0 16.0/18.0 10.0/14.0 2.0/3.0 Ti5xCmin - -
317 0.08 2.0 0.045 0.030 1.0 18.0/20.0 11.0/15.0 3.0/4.0 - - -
317L 0.030 2.0 0.045 0.030 1.0 18.0/20.0 11.0/15.0 3.0/4.0 N:0.10/0.22 - -
317LN 0.03 2.0 0.045 0.03 1 18.0/20.0 11.0/15.0 3.0/4.0 N:0.10/0.22 - -
321 0.08 2.0 0.045 0.030 1.0 17.0/19.0 9.0/12.0 - Ti5xCmin 04Cr18Ni10Ti20 En-58C
347 0.08 2.0 0.045 0.030 1.0 17.0/19.0 9.0/12.0 - Nb/Ta10xCmin 04Cr18Ni10Nb-40 En-58G
904L 0.02 2.0 0.045 0.035 1 19.0/23.0 23.0/28.0 4.0-5.0 CU:1-2 - -
FERRITIC
410 0.15 1.00 0.04 0.03 1.0 11.50/13.5 0.60 - - 12Cr13 En-56A
416 0.15 1.25 0.06 0.15 min 1.0 12.0/14.0 1.25/2.50 - - - -
420 0.15 min 1.0 0.04 0.03 1.0 12.0/14.0 0.60 - - - En-56C&D
430 0.12 1.0 0.04 0.03 1.0 16.0/18.0 0.60 - - 07Cr17 En-60
430L 0.03 1.0 0.04 0.03 1.0 16.0/18.0 0.60 - - - -
430F 0.12 1.25 0.06 0.15 min 1.0 16.0/18.0 0.60 - - - -
431 0.2 1.0 0.04 0.03 1.0 15.0/17.0 1.25/2.5 - - - En-57
17.4-PH 0.07 1.0 0.04 0.03 1.0 15.0/17.0 3.0/5.0 - NB:0.15/0.45 - -

Mechanical Composition of Stainless Steel

Grade Tensile
Strength Mpa, (Min)		 Yield
Strength
Mpa, (Min)		 %Age
Elongation
in 50mm
gauge length min		 Hardness (Max)
BHN Rb
301 515 205 40 217 95
304 515 205 40 201 92
304L 485 170 40 201 92
310S 515 205 40 217 95
316 515 205 40 217 95
316L 485 170 40 217 95
317 515 205 35 217 95
317L 515 205 40 217 95
321 515 205 40 217 95
347 515 205 40 201 92
409 380 170 20 179 88
409M 430 275 20 187 90
410S 415 205 22 183 89
410 450 205 20 217 89
420 700( max ) - 15 217 95
430 450 205 22 183 89
JSL AUS 515 205 40 217 95
JS- 203 515 205 40 217 95
301M 515 205 40 217 95