Temperature has a great influence on the strength of the material, A572 Gr 65 CS steel carbon plate. When the temperature exceeds a certain value, the strength limit of the steel will be reduced. The higher the temperature, the lower the strength. In addition, the longer the steel is used at high temperature, the lower the strength. Therefore, if the steel works at high temperature for a long time, the instantaneous strength of the steel can not be used as its performance index, nor can the room temperature performance replace the high temperature performance.
A572 Gr 65 CS steel carbon plate, S690Q steel can be used to manufacture all kinds of construction machinery, such as drilling rigs, electric shovels, electric wheel dumpers, mining trucks, excavators, loaders, bulldozers, all kinds of cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts for mines and all kinds of engineering construction.Chemical composition analysis of S690Q: C: ≤ 0.200, Si: ≤ 0.800, Mn: ≤ 1.70, P: ≤ 0.020, s: ≤ 0.010, Cr: ≤ 1.500, Ni: ≤ 2.000, Mo: ≤ 0.700, Cu: ≤ 0.500, Ti: ≤ 0.050, V: ≤ 0.120, Nb: ≤ 0.060, B: ≤ 0.0050.
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