Home / Standards / GB/T 30064-2025 GB/T 30064-2025 Upcoming Metallic materials—Method of constraint loss correction of CTOD fracture toughness for fracture assessment of steel components 金属材料 钢构件断裂评估中裂纹尖端张开位移(CTOD)断裂韧度的拘束损失修正方法 Standard Type GBT ICS 77.040.10 CCS H22 Status 即将实施 Issue Date 2025-12-02 Implementation 2026-07-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A