... Pipe(Stainless Seamless steel pipe,stainless welded steel pipe). Material:TP304, TP304L, TP310 / S, TP316L, TP316 / 316L dual grade, TP317L, P321, TP347 Standards: ASTM ... . Applications: for fluid and gas transport; structural and machining applications. ASTM Standard Stainless steel seamless pipe