C18150 Chromium Zirconium Copper

Chemical Composition:

Cr: 0.50-1.50%
Zr: 0.05-0.25%
Cu: Balance
Note: Copper plus additions equal 99.70% minimum.

Typical Physical Properties:

Density at 68°F: 0.321 Lbs./In.3
Specific Gravity: 8.89
Melting Point (Liquidus): 1080°C (1976°F)
               (Solidus): 1070°C (1958°F)
Coefficient of Thermal Expansion per °F: 9.5 x 10-6 (77-212°F)
Electrical Conductivity at 68°F (volumetric): 80% IACS (aged and drawn)
Thermal Conductivity Btu/ft.2/ft./hr./°F at 68°F: 187
Modulus of Elasticity - Tension: 17,000 ksi

Note: 
1). the units are based upon US Customary.
2). the typical physical properties apply to age hardened products.

International Specification:

Rods/Bars/Plates/Sheets: UNS.C18150, SAE J461,463;RWMA Class 2, ISO5182-1991

European Standards: CuCr1Zr, DIN 17666 2.1293, CW106C to EN