AMS 4590 (TQ50)
- Hardness
- 30 HRC
- Thermal Conductivity
- 42 W/(m·K)
- Elongation
- 8 %
- Chemical Composition
- Cu: 78.7%, Al: 10.5%, Ni: 5%, Fe: 4.8%, Mn: 1%
Other Names
- UNS: C63020
- ASTM: B150 C63020
- CuAl11Ni5Fe5
- AMPCO M4
- Looser Aluminiumbronze 79
- NCS
Material Description
AMS 4590 is a high-strength nickel-aluminium bronze with excellent wear resistance, good corrosion resistance and mechanical properties comparable to quenched-and-tempered steels. Despite being a copper-based alloy, its machining behaviour is more similar to high-strength steel. Universal cutting tools designed for medium- to high-strength steels are recommended, while geometries specifically designed for soft non-ferrous metals are not suitable forthis material.