28
Cu
Copper
% Rest
Copper Alloys
KUPROY® 3
High-Strength Beryllium Copper / CuBe2
KUPROY® 3 is a high-strength CuBe2 beryllium copper for springs, precision contacts, wear plates, mold parts and heavy-duty conductive components.
- ISO
- DIN EN 12163 / CW111C / 2.0855
- Density
- 8.8 g/cm³
01. Chemical Composition (%)
28
Ni
Nickel
% 2.0-3.0
14
Si
Silicon
% 0.5-0.8
02. Mechanical Properties
| Property | Unit | Value | Test Method |
|---|---|---|---|
| Tensile Strength (Rm) | Rm | 550 - 650 N/mm² | — |
| Yield Strength (Rp0.2) | — | min. 450 N/mm² | — |
| Hardness | — | 160 - 190 HB | — |
03. Applications
- Electrical Engineering: Heavy-duty switchgear components, contact carriers, and high-voltage circuit breaker parts.
- Resistance Welding: Electrode holders, spot welding electrodes, and components for welding stainless steel.
- Plastic Injection Molding: High-strength cooling pins, core inserts, and nozzles.
- Mechanical Parts: Valve guides, bearing bushes, and fasteners for high-temperature applications.
- Automotive: Connectors and specialized engine components requiring thermal resilience.
04. Supply Forms
Supply FormsCustom Casting, Hollow Bar / Pipe, Flat Bar / Plate, Round Bar
05. Standards and Comparable Grades
06. Technical Description
View Detailed Technical Description
With very high strength, fatigue resistance and useful conductivity, KUPROY® 3 is selected for precision applications requiring elastic recovery, wear resistance and long service life.