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 | |
|---|---|
| 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 | |
|---|---|
| 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 |
TYPICAL USES
- Plumbing