... : ASTM A312 ,ASTM 2.GRADE :TP304,TP304L,TP316L, 3. O.D: 6-880 mm 4.W.T:0.5-60 mm DescriptionAstm A312 304 Seamless Stainless ... %)301 (Ni : 6%), 304, TP304, TP304L/304L, 321, TP321, 316, TP316L, 316L, 316Ti317, 317L, 309S, 310S(2520), 347, Duplex 2205, Duplex ...