CW601N
CW601N: 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 |
62.00 |
63.50 |
| Pb |
1.60 |
2.50 |
| Sn |
- |
0.10 |
| Fe |
- |
0.10 |
| Al |
- |
0.05 |
| Ni |
- |
0.30 |
| Total Others |
- |
0.10 |
| Zn |
Remainder |
Mechanical Properties According To EN12164 CW601N (As Per Temper 400)
| Range (mm) |
From |
To |
UTS Min (N/mm²) |
UTS Max (N/mm²) |
PS Min (N/mm²) |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
2 |
20 |
400 |
- |
200 |
12 |
- |
- |
| Hex (A/F) |
2 |
25 |
400 |
- |
200 |
12 |
- |
- |
| Square (A/F) |
2 |
25 |
400 |
- |
200 |
12 |
- |
- |
Physical Properties
| PHYSICAL PROPERTIES |
| Density (g/cm³) |
8.46 |
| Electrical Conductivity % IACS at 68°F |
26 |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F |
67 |
| Specific Heat Capacity (kJ/kgK) |
0.377 |
| Modulus of Elasticity in (GPa) |
105 |
| Coefficient of thermal expansion at 20 ?C (10-6/K) |
20.4 |
| Melting range |
885 – 910 °C |
| Hot working |
700 – 800 °C |
| Soft annealing |
450 – 650 °C |
| Thermal stress relieving |
200 – 300 °C |
Fabrication Properties
| FABRICATION PROPERTIES |
| Technique |
Suitability |
| Machinability* |
85% |
| Cold formability |
Good |
| Hot formability |
Good |
| Resistance welding |
Fair |
| Oxyacetylene Welding |
Not Recommended |
| Inert gas shield arc welding |
Not Recommended |
| Brazing |
Fair |
| Soldering |
Excellent |
