SUS304 Stainless Steel: Corrosion Resistance Guide

Chemical Composition of Stainless Steel 304

Table 1. Chemical composition for 304 stainless steel alloys

%	304	304L	304H
C	0.0 - 0.07	0.0 - 0.03	0.04 - 0.08
Mn	0.0 - 2.0	0.0 - 2.00	0.0 - 2.0
Si	0.0 - 1.00	0.0 - 1.00	0.0 - 1.0
P	0.0 - 0.05	0.0 - 0.05	0.0 - 0.04
S	0.0 - 0.03	0.0 - 0.02	0.0 - 0.02
Cr	17.50 - 19.50	17.50 - 19.50	17.00 - 19.00
Ni	8.00 - 10.50	8.00 - 10.50	8.00 - 11.00
Fe	Balance	Balance	Balance
N	0.0-0.11	0.0-0.11	0.0 - 0.10

 

Stainless steel 304 has excellent corrosion resistance in a wide variety of environments and when in contact with different corrosive media. Pitting and crevice corrosion can occur in environments containing chlorides. Stress corrosion cracking can occur at temperatures over 60°C.