16Mn alloy seamless steel pipe OD:1/2"---24" WT:Sch10 --Sch160 Standard: GB ASTM DIN JIS EN Material: 16Mn A335 .12CrMo e 16Mn alloy seamless steel pipe1StandardA210-C St52.4 St52 DIN1629/4 DIN1629/3 A335-P11 A335-P22 A335-P52Material16Mn 15MnV 12Cr1MoV 12Cr2MoV Cr5Mo CHINESE3OD1/4-24 13mm-610mm4WTSCH20,SCH40,SCH60,SCH80,SCH100,SCH120,SCH160,XXS5UsageBoiler user ,water transport,,building, ...