... .3-762mm,WT:2.5-60mm 2.Standard: ASME SA210,SA213,GB5310 3.Material: 20MnG,12Cr1MoVG,SA210, ... Outer diameter21.3-762mmWall thickness2.5-60mmStandardASME SA213,ASME SA210,ASTM A335,ASTM A333,DIN17175,GB/T9163, ... 12Cr2MoWVTiB540~735≥345≥18/ 10Cr9Mo1VNb≥585≥415≥20/ ASME SA210SA210A-1≥415≥255≥30≤143HBSA210C≥485≥275≥30≤ ... 179HB ASME SA213SA213 T11≥415≥205≥30≤163HBSA213 T12≥415 ...