Home / Standards / GB/T 40732-2021 GB/T 40732-2021 Active Non-destructive testing of welds—Ultrasonic testing—Testing of welds in austenitic steels and nickel-based alloys 焊缝无损检测 超声检测 奥氏体钢和镍基合金焊缝检测 Standard Type GBT ICS 25.160.40 CCS J33 Status 现行 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会