12Cr1MoV is a Cr-Mo-V low alloy heat-resistant steel imported from the former Soviet Union in the 1950s and 1960s. Vanadium is a kind of element which can reduce the area of γ phase. When it is dissolved in γ - Fe, the transformation of austenite into pearlite will be restrained, which is beneficial to the formation of austenite. The total amount of alloy in the steel is only half of that of 2.25Cr-1Mo steel, but the rupture strength (580 ℃) is 1.4 times of that of 2.25Cr-1Mo steel.

12Cr1MoVG high pressure boiler tube is a kind of boiler steel tube, which belongs to seamless steel pipe category. The manufacturing method of 12Cr1MoVG high pressure boiler tube is the same as that of seamless pipe. High pressure boiler tubes are often in high temperature and high pressure conditions when they are used. Under the action of high temperature flue gas and steam, oxidation and corrosion will occur. It is required that the steel pipe has high endurance strength, high oxidation resistance and corrosion resistance, and good microstructure stability. 12Cr1MoVG high pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air ducts and main steam pipes of high-pressure and ultra-high-pressure boilers.