TW Metals stocks a wide range of stainless steel plates in 304/304L, 304 straight grade, 316/316L and 321 plate. These grades are part of the austenitic family of stainless. Austenitic stainless steel is one of the most widely used and versatile type of steel. While 304L stainless steel plates & sheets have excellent corrosion resistance, 316/316L plates have higher nickel content than 304 and 304L SS sheets giving them even better corrosion resistance especially in marine applications. Type 321 SS plates are a good choice for applications where heat is an issue. 321 can be used in applications up to 900°C where 304L is normally used up to 500°C.