UNS C18400 Chromium Copper
Copper Alloys
O61 (annealed)
Property Overview
Density8.9g/cm³
Elastic Modulus120GPa
Tensile Strength280MPa
Yield Strength110MPa
Brinell HardnessUnknown
Maximum Service Temperature200°C
Chemical Composition
CR
0.4 to 1.2%
SI
0 to 0.1%
P
0 to 0.050%
CU
97.2 to 99.6%
AS
0 to 0.0050%
CA
0 to 0.0050%
LI
0 to 0.050%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
ZN
0 to 0.7%
FE
0 to 0.15%
Mechanical
Elastic (Young's, Tensile) Modulus
120 GPa
Elongation at Break
50 %
Poisson's Ratio
0.34
Shear Modulus
44 GPa
Shear Strength
200 MPa
Tensile Strength: Ultimate (UTS)
280 MPa
Tensile Strength: Yield (Proof)
110 MPa
Hardness
Rockwell F Hardness
59
Physical
Density
8.9 g/cm 3
Thermal
Latent Heat of Fusion
210 J/g
Maximum Temperature: Mechanical
200 °C
Melting Completion (Liquidus)
1080 °C
Melting Onset (Solidus)
1070 °C
Specific Heat Capacity
390 J/kg-K
Thermal Conductivity
320 W/m-K
Thermal Diffusivity
94 mm 2 /s
Thermal Expansion
17 µm/m-K
Thermal Shock Resistance
9.7 points
Electrical
Electrical Conductivity: Equal Volume
80 % IACS
Electrical Conductivity: Equal Weight (Specific)
81 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
54 kJ/m 3
Stiffness to Weight: Axial
7.3 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
8.6 points
Strength to Weight: Bending
11 points
Environmental
Base Metal Price
31 % relative
Embodied Carbon
2.6 kg CO 2 /kg material
Embodied Energy
41 MJ/kg
Embodied Energy
41 MJ/kg 18 x 10 3 BTU/lb
Embodied Water
310 L/kg
Embodied Water
310 L/kg 37 gal/lb
Registered Designations & Aliases
C18400UNS C18400 Chromium Copper