Home / Standards / GB/T 34484.2-2018 GB/T 34484.2-2018 Active Heat-treatable steels—Part 2: Alloy steels for quenching and tempering 热处理钢 第2部分:淬火及回火合金钢 Standard Type GBT ICS 77.140.10 CCS H40 Status 现行 Issue Date 2018-09-17 Implementation 2019-06-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A