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Stainless Steel Chart

Compositions of Common Stainless Steel Grades
Maximum weight % unless a range or minimum is shown

Types:
S-A = Austenitic
S-F = Ferritic
S-M = Martensitic
S-D = Duplex
S-M-PH = Martensitic, Precipitation Hardenable
S-A-PH = Austenitic, Precipitation Hardenable

304 304L 316 316L
Type S-A S-A S-A S-A
C 0.08 0.03 0.08 0.03
Mn 2.00 2.00 2.00 2.00
P 0.045 0.045 0.045 0.045
S 0.030 0.030 0.030 0.030
Si 1.00 1.00 1.00 1.00
Ni 8.00-10.50 8.00-12.00 10.00-14.00 10.00-14.00
Cr 18.00-20.00 18.00-20.00 16.00-18.00 16.00-18.00
Mo - - 2.00-3.00 2.00-3.00
V - - - -
Cu - - - -
Other - - - -
Source SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89


317 321 347 403
Type S-A S-A S-A S-M
C 0.08 0.08 0.08 0.15
Mn 2.00 2.00 2.00 1.00
P 0.045 0.045 0.045 0.040
S 0.030 0.030 0.030 0.030
Si 1.00 1.00 1.00 0.50
Ni 11.00-15.00 9.00-12.00 9.00-13.00 -
Cr 18.00-20.00 17.00-19.00 17.00-19.00 11.50-13.00
Mo 3.00-4.00 - - -
V - - - -
Cu - - - -
Other - Ti, 5xC min. Cb-Ta, 10xC min. -
Source SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89


405 410 416 420
Type S-F S-M S-M S-M
C 0.08 0.15 0.15 0.15 min.
Mn 1.00 1.00 1.25 1.00
P 0.040 0.040 0.06 0.040
S 0.030 0.030 0.15 min. 0.030
Si 1.00 1.00 1.00 1.00
Ni - - - -
Cr 11.50-14.50 11.50-13.50 12.00-14.00 12.00-14.00
Mo - - 0.6 -
V - - Zr 0.60 max. -
Cu - - - -
Other Al, 0.10-0.30 - - -
Source SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89


431 440A 440C Duplex 2205
Type S-M S-M S-M S-D
C 0.20 0.60-0.75 0.95-1.20 0.030
Mn 1.00 1.00 1.00 2.00
P 0.040 0.040 0.040 0.030
S 0.030 0.030 0.030 0.020
Si 1.00 1.00 1.00 1.00
Ni 1.25-2.50 - - 4.50-6.50
Cr 15.00-17.00 16.00-18.00 16.00-18.00 22.0-23.0
Mo - 0.75 0.75 3.00-3.50
V - - - -
Cu - - - -
Other - - - N, 0.14-0.20
Source SAE J405 JAN89 SAE J405 JAN89 SAE J405 JAN89 UNS S32205


13-8 Mo PH 15-5 PH 17-4 PH 254 SMO®
Type S-M-PH S-M-PH S-M-PH S-A
C 0.05 0.07 0.07 0.020
Mn 0.10 1.00 1.00 1.00
P 0.008 0.040 0.040 0.030
S 0.010 0.030 0.030 0.010
Si 0.10 1.00 1.00 0.80
Ni 7.50-8.50 3.50-5.50 3.00-5.00 17.50-18.50
Cr 12.25-13.25 14.00-15.50 15.0-17.5 19.50-20.50
Mo 2.00-2.50 - - 6.00-6.50
V - - - -
Cu - 2.50-4.50 3.00-5.00 0.50-1.00
Other Al, 0.90-1.35 (1) Cb, 0.15-0.45 Cb, 0.15-0.45 N, 0.180-0.220
Source UNS S13889 UNS S15500 UNS S17400 UNS S31254


Nitronic 50 Nitronic 60 Ferralium® 255 A286
Type S-A S-A S-D S-A-PH
C 0.06 0.10 0.04 0.08
Mn 4.00-6.00 7.00-9.00 1.5 2.00
P 0.040 0.040 0.04 0.025
S 0.030 0.030 0.030 0.025
Si 1.00 3.50-4.50 1.00 1.00
Ni 11.50-13.50 8.00-9.00 4.50-6.50 24.00-27.00
Cr 20.50-23.50 16.00-18.00 24.0-27.0 13.50-16.00
Mo 1.50-3.00 - 2.9-3.9 1.00-1.50
V 0.10-0.30 - - 0.10-0.50
Cu - - 1.50-2.50 -
Other Cb, 0.10-0.30; N, 0.20-0.40 N, 0.08-0.18 N, 0.10-0.25 Ti, 1.90-2.35; B, 0.003-0.010; Co, 1.00; Al, 0.35
Source UNS S20910 UNS S21800 UNS S32550 AMS 5525G

(1) See specification for additional residual element requirements

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