ISO/API carbon steel pipe/steel tube 1.Type: smls welded 2.Material: a106b a53b 3.Standard: ... time:7-35 days after payment in advanceProduct specification:Steel tube/pipeStainless Steel: ASTM A 312, A 213, A 249, A ... , 420, 430 etc. Carbon Steel: ASTM A 106, A 53, API A 5L Gr A, B, C, ASTM A 333, Gr ... , GR P1, P2, P5, P9, P11, P22, P91 Types : RoundSize : Seamless: 1/4” Upto 28" NBWelded: 1/2" NB to 60 ...