Project Description
W-12Zn
EN 1982 CC482KCuSn11Pb2-C
- Tin bronze alloy with 12% tin and 2% zinc.
- Wisco has a large stock of rectangular bars and round solid and hollow bars with immediate availability.
Chemical composition
| % min. | % máx | |
|---|---|---|
| Cu | 83,5 | 87,0 |
| Ni | 2,0 | |
| P | 0,4 | |
| Pb | 0,7 | 2,5 |
| Sn | 10,5 | 12,5 |
| Zn | 2,0 | |
| Al | 0,01 | |
| Fe | 0,20 | |
| Mn | 0,20 | |
| S | 0,08 | |
| Sb | 0,2 | |
| Si | 0,01 |
Mechanical properties (Minimum values)
| Moulding process and nomination | Continuous (GC) | Centrifugal (GZ) |
|---|---|---|
| Tensile Strength Rm (MPa) |
280 | 280 |
| Yield Point 0,2% Rp0,2 (MPa) |
150 | 150 |
| Elongation 5D A (%) |
5 | 5 |
| HBW (10-1000) | 90 | 90 |
Physical properties
| Density kg/dm3 |
8,7 |
|---|---|
| Specific Heat J/(g*K) |
0,373 |
| Thermal Expansion 10-6 K |
18,6 |
| Thermal Conductivity W/(m*K) |
55 |
| Electrical Conductivity MS/m |
6,5 |
Closest international standards
| Area | Standard | Alloy | Code | Former Denomination | Status |
|---|---|---|---|---|---|
| Germany | DIN 1705 : 1981 | CuSn12Pb | 2.1061 | ||
| Spain | UNE 37-103-2 : 1981 | CuSn12Pb2 | C-3350 | 3 – 8 – 6 – 1 | |
| Europe | EN 1982 : 1998 | CuSn11Pb2-C | CC482K | Rg 3 CuSn3Pb7Zn9 | |
| ISO | ISO 1338 : 1977 | CuSn12Pb2 |
Optional thermal treatments available on clients’ request
| Process | Temperature | Time | Cooling | Time |
|---|---|---|---|---|
| Stabilised | 400°C | 1.5h | En horno | 4h |
| Step change | 630°C | 1.5h | En horno | 6h |