UNS C82700 Beryllium-Nickel Copper
Copper Alloys
Property Overview
Density8.7g/cm³
Elastic Modulus120GPa
Tensile Strength1200MPa
Yield Strength1020MPa
Brinell HardnessUnknown
Maximum Service Temperature300°C
Chemical Composition
CR
0 to 0.090%
NI
1.0 to 1.5%
SI
0 to 0.15%
CU
94.6 to 96.7%
AL
0 to 0.15%
BE
2.4 to 2.6%
PB
0 to 0.020%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
SN
0 to 0.1%
ZN
0 to 0.1%
FE
0 to 0.25%
Mechanical
Elastic (Young's, Tensile) Modulus
120 GPa
Elongation at Break
1.8 %
Poisson's Ratio
0.33
Shear Modulus
46 GPa
Tensile Strength: Ultimate (UTS)
1200 MPa
Tensile Strength: Yield (Proof)
1020 MPa
Hardness
Rockwell C Hardness
39
Physical
Density
8.7 g/cm 3
Thermal
Latent Heat of Fusion
240 J/g
Maximum Temperature: Mechanical
300 °C
Melting Completion (Liquidus)
950 °C
Melting Onset (Solidus)
860 °C
Specific Heat Capacity
380 J/kg-K
Thermal Conductivity
130 W/m-K
Thermal Diffusivity
39 mm 2 /s
Thermal Expansion
17 µm/m-K
Thermal Shock Resistance
41 points
Electrical
Electrical Conductivity: Equal Volume
20 % IACS
Electrical Conductivity: Equal Weight (Specific)
21 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
21 MJ/m 3
Resilience: Unit (Modulus of Resilience)
4260 kJ/m 3
Stiffness to Weight: Axial
7.8 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
38 points
Strength to Weight: Bending
29 points
Environmental
Embodied Carbon
12 kg CO 2 /kg material
Embodied Energy
180 MJ/kg
Embodied Energy
180 MJ/kg 78 x 10 3 BTU/lb
Embodied Water
310 L/kg
Embodied Water
310 L/kg 37 gal/lb
Registered Designations & Aliases
C82700UNS C82700 Beryllium-Nickel Copper