schedule 40 carbon steel pipe 1.Mateial: ASTM A53-2007, API 5CT, API 5L 2 ... AISI,DIN, EN,JIS 3.OD:1/8"-30" schedule 40 carbon steel pipe Product show: schedule 40 carbon steel pipe MaterialQ195,Q215,Q235,Q345StandardBS1387-1985, GB/T3091-2001, ASTM ... clients' requirement. Apart from carbon steel tube, we Shanghai Yikai Metal Products Co., Ltd is also supplying stainless steel pipe/sheet, coil, round ...