... :18-406mm 3.material:20#,45#,12Cr1MoV 10# CARBON STEEL PIPEStandard: GB,ASTM,DIN,JIS; Grade ... : 10#, 20#, 45#, 16Mn; Application: Structure Pipe,Fluid pipe, low /mid pressure boiler pipe NameMild carbon ... GB, DIN, API,JISMaterialASTM A106 /A53 Gr. A/B, API 5L Gr.A/BDIN17175 1.013/1.0405PackingStandard package , beveled ... are according to the ISO9001:2000 strictly 10# Carbon Steel Pipe