该数据集主要对首钢生产的20mm规格460MPa级抗震耐蚀耐火钢中板进行室温拉伸性能检测，将轧态试样在试验机上进行室温拉伸试验，屈服强度490-491MPa，抗拉强度636-640MPa，屈強比0.77，断后伸长率23.0%，强度、屈强比、塑性性能良好，达到目标的拉伸性能要求。

The data set is mainly used to test the tensile properties of 20mm 460MPa seismic corrosion resistant medium steel plate produced by Shougang at room temperature. The rolled specimens are tested at room temperature on a testing machine. The yield strength is 490-491mpa, the tensile strength is 636-640mpa, the compressive strength ratio is 0.77, and the elongation after fracture is 23.0%. Good strength, flexural strength ratio and plastic properties meet the requirements of tensile properties.elongation after fracture 28.5%, 27.0%.