Home / Standards / GB/T 38684-2020 GB/T 38684-2020 Active Metallic materials—Sheet and strip—Biaxial stress-strain curve by means of bulge test—Optical measuring systems 金属材料 薄板和薄带 双轴应力-应变曲线胀形试验 光学测量方法 Standard Type GBT ICS 77.040.10 CCS H22 Status 现行 Issue Date 2020-03-31 Implementation 2020-10-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A