Corrosion-resistant 5Cr steel and production method thereof
A corrosion-resistant, 5% cr technology, applied in the direction of heat treatment equipment, heat treatment process control, process efficiency improvement, etc., can solve the problems of high price, reduced life, corrosion degree and durability disadvantages, etc., to achieve excellent corrosion resistance, low cost effect
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[0021] The chemical composition and mass percentage of 5Cr corrosion-resistant steel are:
[0022] Composition 1: C: 0.063%, Si: 0.22%, Mn: 0.63%, P: 0.010%, S: 0.005%, Cr: 5.09%, N: 0.0420%, the balance is Fe and unavoidable impurities;
[0023] Component 2: C: 0.058%, Si: 0.18%, Mn: 0.69%, P: 0.010%, S: 0.005%, Cr: 4.83%, N: 0.0320%, and the balance is Fe and unavoidable impurities.
[0024] The production process of the corrosion-resistant steel is:
[0025] Molten iron→converter smelting→adding ferrochrome alloy→refining→continuous casting into billets→heating in heating furnace→controlled rolling→controlled cooling.
[0026] The steelmaking process and control are as follows: ferrochrome alloy is added at the end of the converter, and the continuous casting adopts full protection pouring.
[0027] Steel rolling process and control are:
[0028] The rolling process is controlled by the following two processes
[0029] Process 1: The heating temperature is 1185°C, the r...
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