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R05240 Alloy vs. C18700 Copper

R05240 alloy belongs to the otherwise unclassified metals classification, while C18700 copper belongs to the copper alloys. There are 18 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 R05240 alloy and the bottom bar is C18700 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
110
Elongation at Break, % 25
9.0 to 9.6
Poisson's Ratio 0.36
0.34
Shear Modulus, GPa 57
43
Tensile Strength: Ultimate (UTS), MPa 270
290 to 330
Tensile Strength: Yield (Proof), MPa 170
230 to 250

Thermal Properties

Latent Heat of Fusion, J/g 210
210
Specific Heat Capacity, J/kg-K 190
380
Thermal Expansion, µm/m-K 6.8
17

Otherwise Unclassified Properties

Density, g/cm3 14
9.0
Embodied Water, L/kg 460
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
24 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 90
240 to 280
Stiffness to Weight: Axial, points 6.3
7.1
Stiffness to Weight: Bending, points 13
18
Strength to Weight: Axial, points 5.4
9.0 to 10
Strength to Weight: Bending, points 6.8
11 to 12
Thermal Shock Resistance, points 18
10 to 12

Alloy Composition

Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
98 to 99.2
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0
Lead (Pb), % 0
0.8 to 1.5
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 35 to 42
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.020
0
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 57.9 to 65
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0
Residuals, % 0
0 to 0.5