ASTM A240 321 stainless steel is a Ni Cr Ti type austenitic stainless steel, its performance is very similar to the 304, but due to the addition of titanium, it has a better intergranular corrosion resistance and high temperature strength.
321 ahama waa Ni-CR-Ti nooca-austenitic ahama, ay qaab ciyaareed aad uula mid tahay 304 ah, laakiin ay sabab u dheer ee titanium biraha, waxa uu leeyahay iska caabin ah daxalka fiican intergranular ah iyo xoog heerkulka sare.