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‌ASTM A795 is a standard specification for black and hot-dip galvanized welded and seamless steel pipe for fire protection service.‌

ASTM A209 specifies the requirements for various grades of minimum wall thickness seamless carbon-molybdenum alloy steel tubes. These grades include T1, T1a, and T1b, which are different in terms of their chemical composition and mechanical properties.

ASTM A192/ASME SA192: Seamless Carbon Steel Boiler Tubes for High-Pressure ServiceStandard: ASTM A192/ASME SA192

Standard:GB/T 11263 2010/JIS G3192/ GB/T 707-1988/ BS4-1 1993/ EN10034 1993/ EN 10029/ASTM A6-A6M /JIS G31301/GB/T 33814-2017