GB/T 20887.7
GB/T 20887.7 (Continuously hot rolled high strength steel sheet and strip for automobile- Part 7: Steels for hydraulic forming)· GB (China) · 4 materials
| Designation | Material group | |
|---|---|---|
| HR270HF | Structural and constructional steels | chevron_right |
| HR370HF | Structural and constructional steels | chevron_right |
| HR400HF | Structural and constructional steels | chevron_right |
| HR440HF | Structural and constructional steels | chevron_right |