Dec 18 2012
UNS C87700 silicon bronze has a copper content of not less than 87.5%.
The following table shows the mechanical properties of UNS C87700 forgings as a function of heat treatment.
Temper |
Tensile Str. |
Elong. |
M10 |
400 MPa (58 ksi) |
- |
| 300 MPa (43 ksi) |
3% |
|
200 MPa (29 ksi) |
- |
The chemical composition of UNS C87700 copper alloy is outlined in the following table.
Element |
Content (%) |
Copper, Cu |
87.5 |
Zinc, Zn |
7-9 |
Silicon, Si |
2.5-3.5 |
Tin, Sn |
2 |
Iron, Fe |
0.5 |
Nickel, Ni |
0.25 |
Phosphorous, P |
0.15 |
Manganese, Mn |
0.8 |
Antimony, Sb |
0.1 |
Leas. Pb |
0.09 |