论文部分内容阅读
分析了美国、欧洲及日本等国标准中常见的同钢种(级)不锈钢管常温拉伸试验数据的要求,以及不锈钢管实际质保书中的相关数据。结果表明,标准中同钢种(级)不锈钢管常温拉伸试验数据要求虽然差别不大,但实际产品质保书中所提供的数据往往差异较大。分析了同钢种(级)不锈钢管常温拉伸数据分散度的影响因素。给出了常温拉伸试验数据分散度的合理范围,以及确保其合理和可比性的注意事项。
The requirements of the normal tensile test data of stainless steel pipes of the same grade (grade) commonly used in the United States, Europe and Japan were analyzed. The relevant data in the actual quality assurance book of stainless steel pipes were also analyzed. The results show that the data of the same type of stainless steel pipe (at the same time) at room temperature tensile test data although the difference is not very big, but the data provided in the actual product warranty book are often quite different. The influencing factors of the dispersion of the tensile data at room temperature of the same grade stainless steel tube were analyzed. The reasonable range of the dispersion data of the tensile test at room temperature is given, as well as the precautions to ensure its reasonableness and comparability.