... pipe include carbon steel seamless pipe, seamless roll steel pipe, Double-side buried arc spiral welded pipes, ERW pipe, SSAW pipe ... SPEC 5Lmaterial:10#, 20#, 16MN, Q295API Welded Steel Pipe For LSAW SSAW ERW 1. Steel Pipes (LSAW) OD ... 5L, API 5CT, ASTM material:16MN, Q2952. SSAW Steel Pipe OD: 219.1 - 4064mm (8" - 160") ... 2001, GB/T5040 material:16MN, Q2953. ERW Steel Pipe. Oil casing pipes: OD: 219.1 - ...