Alloy pipes are categorized into structural seamless pipes and high-pressure heat-resistant alloy pipes. The main differences lie in the production standards and industries for alloy pipes. Annealing and tempering processes are used to alter the mechanical properties of alloy pipes, achieving the necessary processing conditions. Their performance offers higher versatility than that of general seamless steel pipes, with a higher content of chromium in their chemical composition, providing excellent resistance to high and low temperatures, as well as corrosion.
The materials for alloy pipes generally include: 16-50Mn, 27SiMn, 40Cr, 12-42CrMo, 16Mn, 12Cr1MoV, T91, 27SiMn, 30CrMo, 15CrMo, 20G, Cr9Mo, 10CrMo910, 15Mo3, 15CrMoV, 35CrMoV, 45CrMo, 15CrMoG, 12CrMoV, 45Cr, 50Cr, and 45CrNiMo.
High-pressure alloy pipe materials and grades: 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb, SA210A1, SA210C, SA213 T11, SA213 T12, SA213 T22, SA213 T23, SA213 T91, SA213 T92, ST45.8/Ⅲ, 15Mo3, 13CrMo44, 10CrMo910, etc.
