... Standard, Grade, Steel No: ASTM A106 Grade A, B, C ASTM A53 S Grade A, BGB/T8 163 10, 20 ... dip, Varnish, Passivation, Phosphating, Shot Blasting 2.Carbon Alloy Tube Application:Boiler, Superheater and Heat-ExchangerProduction Standard, Steel NO:ASTM A213 ... pressure purposeProduction Standard, Grade, Steel No:ASTM A178 Grade A, C, DASTM A192ASTM A210 GradeA-1, CDelivery Condition:Annealed, Normalized, ...