Product name: schedule 40 pipe，grade b steel pipe, black pipe, black steel tubing, schedule 40 black steel pipeMaterials: GR.B, X42, X56, P11, P22, ST37, ST44, ST52, S235JR, S355JR, STP430.Standard:A... View MoreProduct name: schedule 40 pipe，grade b steel pipe, black pipe, black steel tubing, schedule 40 black steel pipeMaterials: GR.B, X42, X56, P11, P22, ST37, ST44, ST52, S235JR, S355JR, STP430.Standard:API 5L, ASTM A106, A53, A335, ANSI B36.10Specification:Outer diameter: 1/4”- 40” (13.7mm-1016mm).Wall thickness: 1.5mm-80mm, Schedule 40, Schedule 80, .Schedule 20 Length: 2m- 12m.
