Home / Standards / GB/T 24595-2025 GB/T 24595-2025 Active Hot-rolled steel bars for quenched and tempered crankshafts 调质曲轴用热轧钢棒 Standard Type GBT ICS 77.140.60 CCS H 54 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A