China · GB
25
GB 3206:1982 — Carbon constructional quality steel wires
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.22 | 0.29 | ||
| Cr | 0.25 | |||
| Cu | 0.25 | |||
| Mn | 0.5 | 0.8 | ||
| Ni | 0.3 | |||
| P | 0.035 | |||
| S | 0.035 | |||
| Si | 0.17 | 0.37 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| Wires | 539–784 | ≥7 | ≥40 | |||
| cold drawnsteel wire | 635–980 非标准数据，仅供参考；540–785 非标准数据，仅供参考 | ≥7 非标准数据，仅供参考 | ≥40 非标准数据，仅供参考 |