Stainless Steel 304/304L in bar, plate, and tube SPECIFICATIONS: GRADE STAINLESS STEEL 304/304L, AISI 304, UNS S30400, UNS S30403 Castle Metals distributes a wide range of Stainless 304 in bar, plate and tube from our distribution centers in the U.S., Canada, Mexico, Shanghai, Singapore, France, and the U.K. When customers confer …