Wind power steel and preparation method thereof
A technology of electric steel and wind power, applied in the field of iron and steel smelting, can solve the problems of low service temperature, heavy maintenance workload, and no consideration of steel corrosion resistance, etc., and achieve excellent low-temperature toughness, stable and uniform performance
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[0023] By providing a wind power steel and a preparation method thereof, the present invention solves the defects that the existing wind power steel does not consider corrosion resistance and poor mechanical properties.
[0024] In order to solve the above problems, the main idea of the embodiment of the present invention is:
[0025] The wind power steel in the embodiment of the present invention contains the following chemical components by weight:
[0026] C: 0.05~0.10; Si: 0.31~0.42; Mn: 1.26~1.42; P: ≤0.015; S: ≤0.008; Als: 0.015~0.028; V: 0.10~0.15; Cr: 0.80~1.35; Mo: 0.10~ 0.20; Ce: 0.08~0.15;
[0027] Among them, 16.7≤(Cr+Mn) / Mo≤22.2; 2.56≤5C+8V+Mn≤2.87.
[0028] The reasons for the alloy composition design of the embodiment of the present invention are as follows:
[0029] C is the most effective element to improve the strength of steel. With the increase of carbon content, the tensile strength and yield strength of steel increase, but the elongation and impact t...
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