Grade 303 is the version of grade 304 stainless steel. Grade 303 has sulfur, whereas grade 304 does not contain sulfur. Sulfur enhances the property of machinability in grade 303. Better machinability is required for specific applications. Sulfur also degrades corrosion resistance ability and lowers the toughness slightly, but is still comparable to other austenitic grades. Grade 303 hexagon bars are available in cold drawn and polished execution.
