Home / Standards / GB/T 46169-2025 GB/T 46169-2025 Active Metallic materials—Steel—Method of test for the determination of brittle crack arrest toughness, Kca 金属材料 钢 脆性裂纹止裂韧度Kca测定的试验方法 Standard Type GBT ICS 77.040.10 CCS H22 Status 现行 Issue Date 2025-08-29 Implementation 2026-03-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A