About 321 material 321 stainless steel is Ni-Cr-Ti-type austenitic stainless steel, its performance is very similar to the 304, but due to the addition of the metal titanium, it has a better intergranular corrosion resistance and high temperature strength.
321 igwe anaghị agba nchara bụ Ni-ČR-edebata-ụdị austenitic igwe anaghị agba nchara, ya ịrụ ọrụ dị yiri nnọọ ka 304, ma n'ihi na mgbakwunye na nke metal titanium, o nwere a mma intergranular corrosion-eguzogide ma na elu okpomọkụ ike.