Nov 29 2012
Copper UNS C18900 has a copper content of not less than 98.7%.
The following table shows the mechanical properties of UNS C18900 rods as a function of heat treatment and thickness.
| Temper |
Thickness |
Tensile Str. |
Yield Str |
Elong. |
| O60 |
3.18mm (0.125in) |
262MPa (38ksi) |
62MPa (9ksi) |
48% |
An equivalent material to UNS C18700 copper alloy is MIL E-45829.
The chemical composition of UNS C18700 copper alloy is outlined in the following table.
| Element |
Content (%) |
| Tin, Sn |
0.6-0.9 |
| Silicon, Si |
0.15-0.40 |
| Manganese, Mn |
0.10-0.30 |
| Zinc, Zn |
0.10 |
| Phosphorous, P |
0.05 |
| Lead, Pb |
0.02 |
| Aluminum, Al |
0.01 |
| Copper, Cu |
Remainder |