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C18700 Copper vs. Grade 705C Zirconium

C18700 copper belongs to the copper alloys classification, while grade 705C zirconium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is grade 705C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
98
Elongation at Break, % 9.0 to 9.6
13
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 43
36
Tensile Strength: Ultimate (UTS), MPa 290 to 330
540
Tensile Strength: Yield (Proof), MPa 230 to 250
390

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Specific Heat Capacity, J/kg-K 380
270
Thermal Conductivity, W/m-K 380
18
Thermal Expansion, µm/m-K 17
5.7

Otherwise Unclassified Properties

Density, g/cm3 9.0
6.7
Embodied Water, L/kg 310
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
66
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
790
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
22
Strength to Weight: Bending, points 11 to 12
22
Thermal Diffusivity, mm2/s 110
9.9
Thermal Shock Resistance, points 10 to 12
69

Alloy Composition

Carbon (C), % 0
0 to 0.1
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 to 0.3
Lead (Pb), % 0.8 to 1.5
0
Niobium (Nb), % 0
2.0 to 3.0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.010
Zirconium (Zr), % 0
91.9 to 98
Residuals, % 0 to 0.5
0