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Product Introduction
Powder Introduction
Copper–chromium (CuCr) contact materials exhibit excellent breaking capability, superior arc‑erosion resistance, and low current‑limiting characteristics, making them widely used in vacuum circuit breakers and vacuum contactors rated at 126 kV and below. Among these properties, the uniformity of chromium distribution and the degree of grain refinement are critical factors that determine the material’s core performance, directly influencing its electrical and thermal conductivity, service life, and long-term quality stability.
Our CuCr25–CuCr50 spherical powders are produced using high‑temperature, high‑vacuum gas atomization. This process enables rapid solidification of the alloy melt at extremely high cooling rates of 105–107 K/s, resulting in a refined microstructure and uniform compositional distribution. The powders exhibit excellent sphericity; relevant images are shown in Figure 1.
Figure 1. Morphology of CuCr30 powder (left: 15–53 μm; right: 53–150 μm)
| Chemical composition |
|
Cu |
Cr |
O |
N |
| CuCr30 |
Bal. |
28.00-32.00 |
≤0.07 |
≤0.005 |
|
| CuCr50 |
Bal. |
47.00-52.00 |
≤0.07 |
≤0.005 |
| Physical properties |
D10(μm) |
D50(μm) |
D90(μm) |
Loose packing density (g/cm³) |
Tap density (g/cm³) |
Flowability (s/50g) |
| 15.63 |
39.39 |
62.03 |
4.39 |
5.40 |
18.90 |
Application areas
By utilizing high-quality spherical powders in processes such as laser/electron-beam powder bed fusion (SLM/EBM) and hot isostatic pressing (HIP), materials with superior performance can be produced. Copper-chromium contacts, resistance welding electrodes, high-strength conductive connectors, and other components for specific applications. , thereby enabling you to easily expand the application scope of the original CuCr25–50.
CuCr
Category:
Brand: Asia Materials
Category: Copper Alloy Powder
Product Name: CuCr
European and American grades: /
Specifications and model numbers: 0–20 µm, 15–53 µm, 45–105 µm, 53–150 µm
Reference standard: /
Appearance: Nearly spherical
Oxygen content: ≤500 ppm
For more product details, please contact our product experts. We look forward to your call.
Product Introduction
Powder Introduction
Copper–chromium (CuCr) contact materials exhibit excellent breaking capability, superior arc‑erosion resistance, and low current‑limiting characteristics, making them widely used in vacuum circuit breakers and vacuum contactors rated at 126 kV and below. Among these properties, the uniformity of chromium distribution and the degree of grain refinement are critical factors that determine the material’s core performance, directly influencing its electrical and thermal conductivity, service life, and long-term quality stability.
Our CuCr25–CuCr50 spherical powders are produced using high‑temperature, high‑vacuum gas atomization. This process enables rapid solidification of the alloy melt at extremely high cooling rates of 105–107 K/s, resulting in a refined microstructure and uniform compositional distribution. The powders exhibit excellent sphericity; relevant images are shown in Figure 1.
Figure 1. Morphology of CuCr30 powder (left: 15–53 μm; right: 53–150 μm)
| Chemical composition |
|
Cu |
Cr |
O |
N |
| CuCr30 |
Bal. |
28.00-32.00 |
≤0.07 |
≤0.005 |
|
| CuCr50 |
Bal. |
47.00-52.00 |
≤0.07 |
≤0.005 |
| Physical properties |
D10(μm) |
D50(μm) |
D90(μm) |
Loose packing density (g/cm³) |
Tap density (g/cm³) |
Flowability (s/50g) |
| 15.63 |
39.39 |
62.03 |
4.39 |
5.40 |
18.90 |
Application areas
By utilizing high-quality spherical powders in processes such as laser/electron-beam powder bed fusion (SLM/EBM) and hot isostatic pressing (HIP), materials with superior performance can be produced. Copper-chromium contacts, resistance welding electrodes, high-strength conductive connectors, and other components for specific applications. , thereby enabling you to easily expand the application scope of the original CuCr25–50.
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