GB/T 20887.1-2017 | GB/T 20887.2-2022 | GB/T 20887.3-2022 | GB/T 20887.4-2022 | GB/T20887.5-2022 | GB/T20887.6-2017 | GB/T20887.7-2017 |
冷成形用高屈服强度钢 | 高扩孔钢 | 双相钢 | 相变诱导塑性钢 | 马氏体钢 | 复相钢 | 液压成形用钢 |
HR315F | HR300/450HE | HR300/540DP | HR400/590TR | HR900/1180MS | HR660/760CP | HR270HF |
HR355F | HR380/540HE | HR330/580DP | HR450/780TR | HR1050/1400MS | HR720/950CP | HR370HF |
HR380F | HR440/580HE | HR380/680DP | HR400HF | |||
HR420F | HR520/680HE | HR450/780DP | HR440HF | |||
HR460F | HR600/780HE | |||||
HR500F | HR780/980HE | |||||
HR550F | ||||||
HR600F | ||||||
HR650F | ||||||
HR700F | ||||||
HR900F | ||||||
HR960F | ||||||