Stainless Steel Alloys Chemical Composition

United Industries offers a wide variety of stainless and corrosion resistant alloys for superior strength, bendability, temperature requirements and longevity.

Austenitic

ELEMENTST201T301T304LT309ST316LT321
(C) Carbon, max0.150.150.0350.080.0350.08
(Mn) Manganese, max5.50-7.52.002.002.002.002.00
(P) Phosphorus, max0.060.0450.0450.0450.0450.045
(S) Sulphur, max0.0300.0300.0300.0300.0300.030
(Si) Silicon, max1.001.001.000.751.001.00
(Cr) Chromium16.0-18.016.0-18.018.0-20.022.0-24.016.0-18.017.0-19.0
(Ni) Nickel3.5-5.56.0-8.08.0-12.012.0-15.010.0-15.09.0-12.0

Ferritic

ELEMENTST409T439T44HPT44418CRCB
(C) Carbon, max0.030.030.0090.0250.03
(Mn) Manganese, max1.001.000.351.001.00
(P) Phosphorus, max0.040.040.0230.040.04
(S) Sulphur, max0.020.030.0020.030.03
(Si) Silicon, max1.001.000.341.001.00
(Cr) Chromium10.50-11.7017.0-19.018.0017.50-19.5017.50-19.50
(Ni) Nickel, max0.050.050.301.001.00

6-Moly

(C) Carbon, max(Cr) Chromium(Ni) NickelMolyCuNPRENUNS
254-SMO0.0219.517.560.50.243S31254
Ultra-6XN0.03202460.750.245N08367
AL-6XN®0.03202460.750.245N08367

High Nickel

(C) Carbon, max(Cr) Chromium(Ni) NickelMolyCuPRENUNS
Alloy 6250.12058850N06625
Alloy 220.015205612.564N06022
C276®0.011657160.0568N10276