Home / Standards / GB/T 24522-2009 GB/T 24522-2009 Abolished Metallic materials - Method of test for the determination of resistance to stable crack extension using specimens of low constraint 金属材料 低拘束试样测定稳定裂纹扩展阻力的试验方法 Standard Type GBT ICS 77.040.10 CCS H22 Status 废止 Issue Date 2009-10-30 Implementation 2010-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A