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C18700 Copper vs. R60704 Alloy

C18700 copper belongs to the copper alloys classification, while R60704 alloy belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is R60704 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
97
Elongation at Break, % 9.0 to 9.6
16
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
36
Tensile Strength: Ultimate (UTS), MPa 290 to 330
470
Tensile Strength: Yield (Proof), MPa 230 to 250
270

Thermal Properties

Latent Heat of Fusion, J/g 210
240
Specific Heat Capacity, J/kg-K 380
270
Thermal Conductivity, W/m-K 380
22
Thermal Expansion, µm/m-K 17
6.0

Otherwise Unclassified Properties

Density, g/cm3 9.0
6.7
Embodied Water, L/kg 310
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
64
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
370
Stiffness to Weight: Axial, points 7.1
8.1
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 9.0 to 10
20
Strength to Weight: Bending, points 11 to 12
20
Thermal Diffusivity, mm2/s 110
12
Thermal Shock Resistance, points 10 to 12
58

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0.2 to 0.4
Copper (Cu), % 98 to 99.2
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 0
0.2 to 0.4
Lead (Pb), % 0.8 to 1.5
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.18
Tin (Sn), % 0
1.0 to 2.0
Zirconium (Zr), % 0
93 to 98.8
Residuals, % 0 to 0.5
0