AK Steel Type 304 is a variation of the
basic 18-8 grade, Type 302, with a higher
chromium and lower carbon content.
Lower carbon minimizes chromium car-
bide precipitation due to welding and its
susceptibility to intergranular corrosion.
In many instances, it can be used in the
”as-welded“ condition, while Type 302
must be annealed in order to retain
adequate corrosion resistance.