Tensile requirement of p265gh pressure vessel steel

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Vanadium mainly exists in the form of carbide in p265gh pressure vessel steel and so on steel. Its main function is to refine the structure and grain size of steel and reduce the strength and toughness of steel. When the solid solution is dissolved at high temperature, the hardenability is increased; conversely, if it is in the form of carbide, the hardenability is reduced. Vanadium increases the tempering stability of quenched steel and produces secondary hardening effect. The vanadium content in steel, except high speed tool steel, is generally less than 0.5%.

The boiler steel plate is a steel plate because all the containers have to withstand different pressures and strengths. Normal pressure is generally 31.4MPa or higher; the working temperature is usually between -20℃-450℃, and some are lower than -20℃. In order to enable the container to withstand higher pressure and reduce the weight of the structure itself, in addition to high-quality carbon steel, the steel material for the container is currently mostly low-alloy structural steel p265gh pressure vessel steel.