CuNi12Zn25Pb
MAILLECHORT Pb
Cu60-63 Ni11-13 Zn reste Pb0.5-1.5
| Chemical composition |
|---|
Cu60-63
Ni11-13
ZnBAL
Pb0.5-1.5
Sn0.2 max
Fe0.3 max
Mn0.5 max
Other0.2 max
| Alloy name | |
|---|---|
| RLSA no. | 490 |
| EN standard | CW404J |
| DIN standard | |
| UNS no.* | C79200 |
*Unified Numbering System (USA)
Characteristics and main uses
Le CuNi12Zn25Pb est un alliage nickel-argent contenant 12% de nickel et 25% de zinc. De part son ajout de plomb, il en fait un alliage adapté aux opérations d'usinage par enlèvement de copeaux.| Physical properties | Units | |
|---|---|---|
| Density (20°C) | 8,67 | Kg/dm³ |
| Melting point | 1020 | °C |
| Longitudinal elasticity modulus | 130 | GPa |
| Thermal conductivity | W/m·K | |
| Electrical conductivity | >4.35 | m/Ω·mm² |
| Electrical resistivity | <0.23 | µΩ·m |
| Linear expansion Coefficient | 16 | 10⁻⁶·K⁻¹ |
| IACS (International Annealed Copper Standard) | >7.5 | % |
| Poisson's ratio | 0,34 |
| Capabilities | |
|---|---|
| Corrosion resistance | 4 |
| Hot deformation | 1 |
| Cold deformation | 3 |
| Electrodepositing | |
| Diamond cutting | |
| Nitriding | |
| Mechanical polishing | 3 |
| Welding without filler | 1 |
| Brazing | 2 |
1 poor | 2 average | 3 good | 4 very good | - no info
