Method for eliminating surface cracks of ultra-wide ferrite stainless steel middle-thick plate
A surface crack and ferrite technology, which is applied in the field of ferritic stainless steel plate rolling, can solve the problems of not considering the proportion of equiaxed grains in the continuous casting slab, not considering the influence of stainless steel surface grinding and spraying, etc., and achieves the benefit of coordinated deformation , shorten the forming interval, and solve the effect of possibility
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[0037] The following embodiments are used to specifically illustrate the content of the present invention, and these embodiments are only a general description of the content of the present invention, and do not limit the content of the present invention.
[0038] Table 1 is the chemical composition of the example steel, Table 2 is the smelting process system of the example steel, Table 3 is the processing method of the example steel casting billet; Table 4 is the rolling method of the example steel; Table 5 is the example The reduction rate of each pass of the steel; Table 6 shows the annealing process and structure of the example steel; Table 7 shows the performance of the example stainless steel.
[0039] Table 1 The chemical composition of the embodiment of the present invention (wt, %)
[0040] ExampleC Si MnCr Ti Nb NiCuN Ca 10.0420.350.2616.60.060.100.410.150.0560.0011 20.0690.420.3116.80.080.130.350.210.0610.0015 30.0530.540.5217.20.050.120.210.320.0720.0013 40.0560.110....
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