Wire Materials: Type 304, Type 304 L, Type 316 and Type 316 L. Type 304 often refers to as "18-8" ... , please contact us. Wire Materials: Type 304, Type 304 L, Type 316 and Type 316 L. Type 304 often refers to as "18- ... elevated temperature up to 1400 Degrees Fahrenheit. Type 304 L is very similar to T-304, the ... salts, such as chlorides are present. Type 316 L: Type 316 L is very similar to T-316, the ...