Home / Standards / GB/T 20878-2024 GB/T 20878-2024 Active Stainless steels—Designation and chemical composition 不锈钢 牌号及化学成分 Standard Type GBT ICS 77.140.20 CCS H40 Status 现行 Issue Date 2024-07-24 Implementation 2025-02-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A