... in advanceProduct specification:Steel tube/pipeStainless Steel: ASTM A 312, A 213, A 249, A 269, A 358, A 240Type: 202, 304, 304L, 304H, 316, 316L ... , 420, 430 etc. Carbon Steel: ASTM A 106, A 53, API A 5L Gr A, B, C, ASTM A 333, Gr 1 to 6 Alloy Steel ... : ASTM A 335, GR P1, P2, P5, P9 ...