South Africa · SANS
CU2
SANS 1303-1:2008 — SANS 1303-1
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| Cu | 62 | 65.5 | ||
| Fe | 0.2 | |||
| Pb | 0.3 | |||
| Tot. other | 0.5 | Excluding Pb. | Excluding Pb. | |
| Zn | The rest. | The rest. |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bolts, screws, , nuts | ≥250 Nominal thread diameter M6 < d <= M39；≥340 Nominal thread diameter d <= M6 | ≥370；≥440 | ≥19；≥11 |