GB 4463
GB 4463 (Heat-treated steel bar for prestressed concrete)· GB (China) · 3 materials
| Designation | Material group | |
|---|---|---|
| 40Si2Mn | Structural and constructional steels | chevron_right |
| 45Si2Cr | Structural and constructional steels | chevron_right |
| 48Si2Mn | Structural and constructional steels | chevron_right |