UNS C70700 (CuNi10) Copper-Nickel
Nickel Alloys
Property Overview
Density8.9g/cm³
Elastic Modulus120GPa
Tensile Strength320MPa
Yield Strength110MPa
Brinell Hardness73HB
Maximum Service Temperature220°C
Chemical Composition
NI
9.5 to 10.5%
MN
0 to 0.5%
CU
88.5 to 90.5%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
FE
0 to 0.050%
Mechanical
Elastic (Young's, Tensile) Modulus
120 GPa
Elongation at Break
39 %
Poisson's Ratio
0.34
Shear Modulus
46 GPa
Shear Strength
220 MPa
Tensile Strength: Ultimate (UTS)
320 MPa
Tensile Strength: Yield (Proof)
110 MPa
Hardness
Brinell Hardness
73
Physical
Density
8.9 g/cm 3
Thermal
Latent Heat of Fusion
220 J/g
Maximum Temperature: Mechanical
220 °C
Melting Completion (Liquidus)
1120 °C
Melting Onset (Solidus)
1060 °C
Specific Heat Capacity
390 J/kg-K
Thermal Conductivity
59 W/m-K
Thermal Diffusivity
17 mm 2 /s
Thermal Expansion
16 µm/m-K
Thermal Shock Resistance
12 points
Electrical
Electrical Conductivity: Equal Volume
11 % IACS
Electrical Conductivity: Equal Weight (Specific)
12 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
100 MJ/m 3
Resilience: Unit (Modulus of Resilience)
51 kJ/m 3
Stiffness to Weight: Axial
7.6 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
10 points
Strength to Weight: Bending
12 points
Environmental
Base Metal Price
34 % relative
Embodied Carbon
3.4 kg CO 2 /kg material
Embodied Energy
52 MJ/kg
Embodied Energy
52 MJ/kg 22 x 10 3 BTU/lb
Embodied Water
300 L/kg
Embodied Water
300 L/kg 36 gal/lb
Registered Designations & Aliases
C70700CuNi10UNS C70700 (CuNi10) Copper-Nickel