20MnMoNi55 is a nuclear power steel plate, steel plate for boilers and pressure vessels20MnMoNi55, WYJ217-2007 steel plate for boilers and pressure vessels is the enterprise standard of Wuyang Iron and Steel Company, which is suitable for the production and inspection of steel plates with a thickness of no more than 150mm.
20MnMoNi55 steel plate fixed rolling: Wugang Xiangyang
20MnMoNi55 grade Explanation: 20 means that the carbon content is 0.2%; 55 indicates that the Ni element content is between 54.5-55.5%. It is suitable for the production and inspection of thick steel plates with a thickness of no more than 150mm. 20MnMoNi55 steel plate is read as: 20 manganese-molybdenum nickel five-five. 20MnMo-R steel plate is read: 20 manganese-molybdenum-capacity.
WYJ217-2007 contains grades such as 20MnMoNi55 and 20MnMoR.
20MnMoNi55 heat treatment state: normalized + tempered or quenched + tempered.
Chemical composition of 20MnMoNi55 and 20MnMoR:
chemical composition (mass fraction)/%
C as 0.15~0.25
Si0.10~0.35
Mn1.15~1.55
P≤0.015
S ≤0.012
20MnMoNi55 is widely used in petroleum, chemical power stations, boilers and other industries for the production of reaction washing heat exchangers, oil and gas tanks, liquefied gas, nuclear reactors, pressure shells, boiler drums, liquefied petroleum gas cylinders, hydropower stations, high-pressure water pipes, turbines, volutes and other equipment and components.
2024-06-04
2024-06-04
2024-06-04
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