Material Overview
WIRBALIT® Copper Alloys
Our proprietary WIRBALIT® alloys form the foundation for electrodes, current-carrying components, and wear-critical parts used in resistance and arc welding. They are used where high electrical conductivity with minimal losses and high thermal conductivity are required.
WIRBALIT® HF/N/G (CuCr1Zr)
Precipitation-hardenable copper alloy with high electrical conductivity and wear resistance.
WIRBALIT® B (CuCo2Be)
Precipitation-hardened copper alloy with high hardness
WIRBALIT® D (CuNi2.5SiCr)
Precipitation-hardened copper alloy with high heat resistance and dimensional stability
WIRBALIT® CA (CuAl2O3)
Dispersion-strengthened copper alloy with high heat resistance
Catalog
Semi-Finished Parts
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Form and Sizes
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Round rods
3–200 mm
Tubes
Ø 50 / Ø 60 mm
Contact tubes
AD 6-16 mm – ID 0.93-4 mm
Flat bars
5×100 – 5×100 mm
Square bars
8×8 – 150×150 mm
Profiles
Custom
Hexagonal bars
10–36 mm
Rings
> 170 mm
Discs
> 150 mm
Plates
5–100 mm
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Drawing parts required? Simply upload your file and get a quote.
Material Data
Comparison of WIRBALIT® Copper Alloys
Materials | ||||
|---|---|---|---|---|
Composition | CuCr1Zr | CuCo2Be | CuNi2.5SiCr | CuAl2O3 |
Material No. / Standard | 2.1293 - CW106C C 18150 | 2.1285 - CW104C C17500 | DIN 17666 | C15715 |
Tensile strength (Rm MPa) | ≥ 490 | ≥ 690 | ≥ 570 | ≤530 |
Yield strength (Rp0.2 MPa) | ≥ 440 | ≥ 570 | ≥ 460 | ≤460 |
Hardness (HBW 2.5/62.5) | 150 -180 | 220-280 | ≥ 185 | 150-155 |
Electrical conductivity (% IACS) | ≥ 76 | ≥ 45 | ≥ 45 | ≈77% |
Melting temperature (Liquidus) °C | 1075 | 1056 | 1060 | 1083 |
Softening temperature °C | 475 | 500 | 475 | 980 |
The chemical, physical and mechanical properties of our WIRBALIT® materials are provided here.
Reliability Built into Every Material
With one of the largest inventories in Europe, we ensure immediate delivery of standard parts. Custom solutions are implemented quickly and flexibly thanks to in-house development and streamlined structures.
Sixty years of welding experience are built into every product and every consultation. This know-how keeps your production stable and your results dependable.
Every production step is monitored within a structured inspection system that identifies deviations early and logs them reliably. For critical applications, we offer part-specific testing tailored to your requirements.
As an active member of the German Welding Society (DVS), we contribute our practical experience directly to standards and guidelines. This results in solutions that meet current standards and shape those of tomorrow.
SVS Capabilities
Consulting required? Our material experts work with you to select and adapt the material to your needs.
Kai Kleinevoß
Head of Sales Wirbalit®
kleinevoss@svs-schweisstechnik.de
+49 208 99 328 15
WIRBALIT® alloys are supplied either in a cold-worked or additionally precipitation-hardened condition. Both processes significantly increase the mechanical strength without substantially impairing electrical conductivity.
Improper processing may lead to a loss of these properties and limit the suitability of the material for its intended application. Precipitation-hardened variants are particularly sensitive to thermal input. If the material-specific softening temperature is exceeded, the microstructure may change. This can introduce residual stresses and, in asymmetrical or complex geometries, promote crack formation.
Cold-forming methods such as machining or cold deformation are recommended.
Further information is available in our processing guidelines.