Russia · GOST
58
GOST 1050:1988 — Metal Products from nonalloyed structural quality and special steels - General specification
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| As | 0.08 | |||
| C | 0.55 | 0.63 | ||
| Cr | 0.15 | |||
| Cu | 0.3 | |||
| Mn | 0.2 | |||
| N | 0.008 | For BOF cold rolled steel sheets N=max 0.0060% | For BOF cold rolled steel sheets N=max 0.0060% | |
| Ni | 0.3 | |||
| P | 0.035 | |||
| S | 0.04 | |||
| Si | 0.1 | 0.3 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bars, d, t <= 80 mm | 315 | 600 | 12 | 28 | ||
| bars, not heat treated | HB ≤255 Rolled and forged product. | |||||
| bars, annealed or tempered | HB ≤217 Rolled and forged product. |