CW602N
CW602N a dezincification-resistant machining brass, is particularly suitable for use in warm, acidic waters. This material passes the dezincification test according to ISO 6509. For the manufacture of hot-stamped parts C35330 with better hot-working properties is recommended. To achieve dezincification resistance a heat treatment may be necessary after hot working.
Chemical Composition
| Elements |
Min (%) |
Max (%) |
| Cu |
61.00 |
63.00 |
| Pb |
1.70 |
2.80 |
| Sn |
- |
0.10 |
| Fe |
- |
0.10 |
| As |
0.02 |
0.15 |
| Al |
- |
0.05 |
| Mn |
- |
0.10 |
| Ni |
- |
0.30 |
| Total Others |
- |
0.20 |
| Zn |
Remainder |
Mechanical Properties According To EN12164 (As Per Temper R320)
| Range (mm) |
From |
To |
UTS Min (N/mm²) |
UTS Max (N/mm²) |
PS Min (N/mm²) |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
6 |
40 |
320 |
- |
200 |
20 |
- |
- |
| Hex (A/F) |
5 |
35 |
320 |
- |
200 |
20 |
- |
- |
| Square (A/F) |
5 |
35 |
320 |
- |
200 |
20 |
- |
- |
Physical Properties
| PHYSICAL PROPERTIES |
| Melting Point |
910°C |
| Density |
8.43 g/cm³ |
| Specific Heat |
377 |
| Thermal conductivity (20°C) |
117 W/m°K |
| Thermal expansion coefficient (20-200°C) |
20.7 x 10-6 per °C |
| Electrical conductivity |
26 % IACS |
| Electrical Resistivity |
0.066 ohm mm2/m |
| Modulus of Elasticity |
106 KN/mm2 |
Fabrication Properties
| FABRICATION PROPERTIES |
| Technique |
Suitability |
| Hot Working Temperature Range |
800-850°C |
| Hot Formability |
Very Good |
| Cold Formability |
Good |
| Machinability rating (free cutting brass = 100) |
75% |
| Annealing Temp. Range |
450-650°C |
| Stress Relieving Temp. Range |
250-350°C |
| Soldering |
Excellent |
| Brazing |
Good |
| Oxyacetylene Welding |
Not Recommended |
| Gas Shielded Arc Welding |
Not Recommended |
| Resistance welding |
Not Recommended |
