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
01. Chemical Composition (%)
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Copper
(Cu)
% Rest
Nickel
(Ni)
% 2.0-3.0
Silicon
(Si)
% 0.5-0.8
02. Supply Forms
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Custom Casting
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Hollow Bar / Pipe
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Flat Bar / Plate
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Round Bar
03. Mechanical Properties
engineering| Property Name | Imperial (psi) | Metric (MPa) | Test Method |
|---|---|---|---|
| Tensile Strength (Rm) | Rm | 550 - 650 N/mm² | |
| Yield Strength (Rp0.2) | min. 450 N/mm² | ||
| Hardness | 160 - 190 HB |
04. Technical Resources
folder_open05. Compliance Standards
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DIN
2.0855
EN
CW111C
Areas of Use
settings_suggest| 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. |
Notes
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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.