CW605N: A ductile alloy with good machinability as well as bending and cold heading properties. Suitable for bicycle spoke nipples.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 61.00 | 62.00 |
| Pb | 0.80 | 1.60 |
| Fe | – | 0.20 |
| Sn | – | 0.20 |
| Ni | – | 0.30 |
| Al | – | 0.05 |
| Total Others | – | 0.50 |
| Zn | Remainder |
MECHANICAL PROPERTIES ACCORDING TO IS 319 GR III (AS PER TEMPER HB)
| Range (mm) | From | To | UTS Min (MPa) | PS Min (MPa) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 1.5 | 75 | 340 | 160 | 25 | 90 | 140 |
| Hex (A/F) | 3 | 70 | 340 | 160 | 25 | 90 | 140 |
| Square (A/F) | 3 | 60 | 340 | 160 | 25 | 90 | 140 |
| PHYSICAL PROPERTIES |
| Density | 8.46 g/cm3 |
| Melting Point | 910°C |
| Specific heat cap at 20˚C | 0.377 (kj/kgK) |
| Electrical conductivity | 14.7 (MS/m) |
| Modulus of Elasticity in (GPa) | 105 (GPa) |
| Coef of therm exp at 20˚C | 20.4 (10-6 /K) |
| Thermal Conductivity | 116 W/m.K |
| FABRICATION PROPERTIES |
| Technique | Suitability |
| Machinability (CuZn39Pb3 = 100 %) | 80% |
| Capacity for being cold worked | poor |
| Capacity for being hot worked | Fair |
| Suitability for soldering | Excellent |
| Suitability for Brazing | Good |
TYPICAL USES
- Precision Components Machining with Riveting operation.
