Nov 30 2012
UNS C72800 has a copper content of not less than 82%.
The following table shows the mechanical properties of UNS C72800 rods as a function of heat treatment and thickness.
| Temper |
Thickness |
Tensile Str. |
Elong. |
Rockwell |
| B |
C |
F |
30T |
| TB00 |
6.35 mm. (0.25 in.) |
525MPa (76ksi) |
23% |
87 |
- |
- |
- |
| TF00 |
19.3 mm. (0.76 in.) |
1014MPa (147ksi) |
10% |
- |
33 |
- |
- |
|
- |
1000MPa (145ksi) |
- |
- |
34 |
- |
- |
| TH01 |
2.87 mm. (0.113 in.) |
1372MPa (199ksi) |
4% |
- |
- |
- |
- |
The chemical composition of UNS C72800 copper alloy is outlined in the following table.
| Element |
Content (%) |
| Nickel, Ni |
9.5-10.5 |
| Tin, Sn |
7.5-8.5 |
| Zinc, Zn |
1 |
| Iron, Fe |
0.5 |
| Niobium, Nb |
0.10-0.30 |
| Aluminum, Al |
0.1 |
| Manganese, Mn |
0.05-0.30 |
| Silicon, Si |
0.05 |
| Antimony, Sb |
0.02 |
| Titanium, Ti |
0.01 |
| Magnesium, Mg |
0.005-0.15 |
| Lead, Pb |
0.005 |
| Phosphorus, P |
0.005 |
| Boron, B |
0.001 |
| Bismuth, Bi |
0.001 |
| Sulfur, S |
0.0025 |
| Copper, Cu |
Remainder |