UNS C96700 (Alloy 72C) Nickel-Beryllium Copper
Nickel Alloys
Property Overview
Density8.8g/cm³
Elastic Modulus140GPa
Tensile Strength1210MPa
Yield Strength550MPa
Brinell HardnessUnknown
Maximum Service Temperature310°C
Chemical Composition
NI
29 to 33%
MN
0.4 to 1.0%
SI
0 to 0.15%
CU
62.4 to 68.8%
TI
0.15 to 0.35%
BE
1.1 to 1.2%
PB
0 to 0.010%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
ZR
0.15 to 0.35%
FE
0.4 to 1.0%
Mechanical
Elastic (Young's, Tensile) Modulus
140 GPa
Elongation at Break
10 %
Poisson's Ratio
0.33
Shear Modulus
53 GPa
Tensile Strength: Ultimate (UTS)
1210 MPa
Tensile Strength: Yield (Proof)
550 MPa
Hardness
Rockwell C Hardness
26
Physical
Density
8.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
310 °C
Melting Completion (Liquidus)
1170 °C
Melting Onset (Solidus)
1110 °C
Specific Heat Capacity
400 J/kg-K
Thermal Conductivity
30 W/m-K
Thermal Diffusivity
8.5 mm 2 /s
Thermal Expansion
15 µm/m-K
Thermal Shock Resistance
40 points
Calculated
Resilience: Ultimate (Unit Rupture Work)
99 MJ/m 3
Resilience: Unit (Modulus of Resilience)
1080 kJ/m 3
Stiffness to Weight: Axial
8.9 points
Stiffness to Weight: Bending
20 points
Strength to Weight: Axial
38 points
Strength to Weight: Bending
29 points
Environmental
Base Metal Price
90 % relative
Embodied Carbon
9.5 kg CO 2 /kg material
Embodied Energy
140 MJ/kg
Embodied Energy
140 MJ/kg 61 x 10 3 BTU/lb
Embodied Water
280 L/kg
Embodied Water
280 L/kg 34 gal/lb
Registered Designations & Aliases
Alloy 72CC96700UNS C96700 (Alloy 72C) Nickel-Beryllium Copper