It is a special high-strength brass bar with improved strength and wear resistance by solid solution strengthening and precipitation strengthening of Mn-Si intermetallic compounds.
Demand for higher-strength, more wear-resistant copper alloys is increasing as machinery and equipment continue to operate at higher speeds and performance levels. In addition, good machinability during production is also required. UH 13 is a lead-free copper alloy that combines high strength with excellent machinability, and can serve as a cost-effective alternative to stainless steel and bronze for components, contributing to overall cost reduction.
UH13 has high-strength and excellent wear resistance.
It is suitably used for sliding parts such as bearings and gears such as a cylinder block, a shoe, a liner, a thrust metal, a screw nut, a hub wheel, a bush, and pinion gear.
It shows chemical components of UH13.
| Cu | Al | Zn | Pb | Mn | Si | |
|---|---|---|---|---|---|---|
| UH13 | 62.0 | 3.0 | Rem. | <0.1 | 3.0 | 1.0 |
It shows physical properties of UH13.
| Property | Representative Value |
|---|---|
| UH13 | |
| Specific Gravity (293K) | 7.9 |
| Coefficient of Thermal Expansion (×10-6/K：293～573K) |
20 |
| Thermal Conductivity (W/(m・K)：293K) |
101 |
| Electrical Conductivity (%IACS:293K) |
23 |
It shows chemical components of UH13.
| Property | Representative Value |
|---|---|
| UH13 | |
| Tensile Strength (N/mm2) |
730 |
| 0.2% Yield Strength (N/mm2) |
500 |
| Elongation (%) |
10 |
| HV | 230 |
| HRB | 98 |
When referring to the wear test results in the Amsler type abrasion test (under lubrication), the reduced wear amount of UH13 is equal to or less than 1/2 of C5191, and it is possible to confirm the excellent wear resistance.
