Home / Standards / GB/T 222-2025 GB/T 222-2025 Active Steels and alloys—Permissible deviations of product analyzed chemical composition 钢及合金 成品化学成分允许偏差 Standard Type GBT ICS 77.080.20 CCS H40 Status 现行 Issue Date 2025-08-29 Implementation 2025-12-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A