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Standard: GB5310-1995, ASTM A106-97a, ASTM A213-95a, JIS 3461-1998, JIS 3462-1998, DIN 17175-1979
Outside Diameter:
1. Size Ranges of Cold-rolled (drawn) steel Tubes: 22-114mm
2. Size Ranges of Hot-rolled(expanded) Steel Tubes: 76-426mm
Thickness:
1. Size Ranges of Cold-rolled (drawn) steel Tubes: 2.0-13mm
2. Size Ranges of Hot-rolled(expanded) Steel Tubes: 3.5-40mm
Commonly Used steel Grades: 20G, 20MnG, 25MnG, 15MoG, 20MoG, 12Cr1MoVG, 15CrMoG, 12Cr2MoG, 12Cr2MoWVTiB, 12Cr3MoVSiTiB


