DENSITY
8 kg/m³
MELTING POINT
870°C
TENSILE STRENGTH
1,380 MPa
MAX SERVICE TEMP
315°C
Beryllium Copper is a copper alloy used in aerospace applications. Melting point: 870 °C. Tensile strength: 1,380 MPa.
ABOUT BERYLLIUM COPPER
Beryllium Copper (CuBe) is a copper alloy with 1.8-2% beryllium that combines high strength with excellent conductivity and non-sparking properties. It is used in spacecraft mechanisms, electrical connectors, and springs where both conductivity and mechanical performance are required. It is also valued for tooling used around flammable propellants.
CHEMICAL COMPOSITION
Cu 97-98%, Be 1.8-2.0%, Co 0.2-0.3%
ROCKET & SPACECRAFT APPLICATIONS
●Non-sparking propellant handling tools
●Spacecraft electrical connectors
●Spring contacts
●Mold tooling for composites
●Relay and switch components
MANUFACTURING PROPERTIES
CORROSION RESISTANCE
Good
WELDABILITY
Fair
MACHINABILITY
Good
COST RATING
High
MECHANICAL PROPERTIES
| DENSITY | 8 kg/m³ |
| TENSILE STRENGTH | 1,380 MPa |
| YIELD STRENGTH | 1,170 MPa |
| STRENGTH-TO-WEIGHT | 167272.7 kN·m/kg |
THERMAL PROPERTIES
| MELTING POINT | 870 °C |
| MAX SERVICE TEMPERATURE | 315 °C |
| THERMAL CONDUCTIVITY | 115 W/m·K |
| THERMAL EXPANSION | 17.8 µm/m·K |
COMPLETE SPECIFICATIONS
| CATEGORY | Copper Alloy |
| DESIGNATIONS | UNS C17200, AMS 4650, CDA 172 |
| MANUFACTURER | Materion (Brush Wellman) |
| DENSITY | 8 kg/m³ |
| TENSILE STRENGTH | 1,380 MPa |
| YIELD STRENGTH | 1,170 MPa |
| MELTING POINT | 870 °C |
| MAX SERVICE TEMP | 315 °C |
| THERMAL CONDUCTIVITY | 115 W/m·K |
| THERMAL EXPANSION | 17.8 µm/m·K |
| CORROSION RESISTANCE | Good |
| WELDABILITY | Fair |
| MACHINABILITY | Good |
| COST RATING | High |
