Advanced Automotive Structural Steel

Mechanical property of the bainite dual phase steel

Remark: 1）a is test thickness, B is width of cold bending test, d is bending diameter. 2）The direction of stretching sample is Longitudinal, i.e. P14 sample in GB/T 228. The direction of cold bending is transverse, i.e. GB/T 232 flap type test.

Mechanical property of martensite DP steel

Remark:1）a refer to sample thickness, B refer to width of cold bending sample, d refers to bending diameter。2）The direction of stretching sample is Longitudinal, i.e.P14 sample in GB/T 228. The direction of cold bending sample is transverse, i.e. GB/T 232 flap type test.