SLM® Cu-BASED ALLOYS
CuNi2SiCr
The low-alloyed copper-alloy CuNi2SiCr is a thermally hardenable alloy with a high stiffness, even at elevated temperatures. Due to the low additives, the properties of pure copper (e.g. strength, softening temperature) can be considerably improved, while other properties (e.g. electrical conductivity, thermal conductivity, corrosion resistance) are largely retained. Typical areas of application are, for example, toolmaking, conductive contacts in electrical engineering or valves.
Material characteristics
- Balanced combination of electrical and thermal conductivity
- High wear resistance
- High corrosion resistance, in particular to stress corrosion cracking
Typical application areas
- Welding technology
- Electrical engineering
- Tool construction
CuCr1Zr
CuCr1Zr is SLM Solutions’ copper alloy with the lowest concentration of alloying elements and, therefore, brings an excellent balance of mechanical and conductive properties. With up to 92 % IACS after heat-treatment, CuCr1Zr still features very high electrical conductivities at up to 300 MPa ultimate tensile strength. Chromium and zirconium help to maintain both high strength and hardness at elevated temperatures – ideal for rocket engines.
Material characteristics
- Highest electrical conductivity for SLM® copper alloys
- High temperature stability for strength and hardness
- Improved strength compared to pure copper
Typical application areas
- Aeronautics and space
- Electrical engineering