API 5L carbon steel pipe 1: PED , ISO , API certificate. 2: Outer Diameter:32-630mm 3: ASTM ... A106 Gr.B 4: Appli:Fluid pip API 5L carbon ... SCH160-XXS (4) Standard :ASTM A106-B ASTM A53-B API 5L-BAPI 5L, X42, X52, and 5CT ,J55 ,K55SAE1020 ... ,Electricity,Machine building industy,Chemical industy,Petroleum,Traffic. API 5L carbon steel pipe