What is 12Cr2MoG high pressure boiler tube?
12Cr2MoG seamless boiler tube is a kind of seamless steel tube for boiler heating surface with special composition and performance. It is usually made of carbon steel, but also includes small amounts of alloying elements such as chromium, molybdenum, vanadium, etc. These elements increase the strength, toughness and corrosion resistance of boiler tubes.
Application of 12Cr2MoG steel pipe
12Cr2MoG alloy tube plays a vital role in boiler equipment. It is used on the heating surface that withstands high temperature and pressure, and is in direct contact with high temperature flue gas and water. It is one of the core components of the boiler. It has high mechanical strength and good corrosion resistance, can withstand the oxidation and corrosion of high-temperature flue gas, and ensures the normal operation of the boiler.
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Chemical composition of 12Cr2MoG high pressure pipe: C: 0.08~0.15 Si: ≤0.50 Mn: 0.40~0.60 P≤0.025 S≤0.015 Cr: 2.00~2.50 Mo: 0.90~1.13
Mechanical properties: tensile strength 450~600Mpa, yield strength ≥280Mpa, elongation after break ≥22%, longitudinal impact ≥40 Joules, transverse impact ≥27 Joules.
High-pressure boiler tube delivery status: normalized + tempered or quenched + tempered
Specifications and dimensions: 60.3-765*2-120, commonly used diameters are 60.3, 73, 88.9, 114.3, 168.3, 219.1, 273.1, 323.9, 355.6, 406.4, 457.2, 508, 559, 610, 660, 711, 762, also available Other sizes can be customized according to customer requirements.
GB 5310 Seamless Boiler Pipe Specification
The main uses of 12Cr2MoG high-pressure alloy pipes are: used in heating surface pipes, economizers, superheaters, reheaters, etc. of high-pressure boilers (working pressure is generally above 9.8Mpa, working temperature is between 450°C and 650°C).
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