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R60705 Alloy vs. CR021A Copper

R60705 alloy belongs to the otherwise unclassified metals classification, while CR021A copper belongs to the copper alloys. 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 R60705 alloy and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
120
Elongation at Break, % 18
15
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 37
43
Tensile Strength: Ultimate (UTS), MPa 540
230
Tensile Strength: Yield (Proof), MPa 430
140

Thermal Properties

Latent Heat of Fusion, J/g 250
210
Specific Heat Capacity, J/kg-K 270
390
Thermal Conductivity, W/m-K 17
380
Thermal Expansion, µm/m-K 6.3
17

Otherwise Unclassified Properties

Density, g/cm3 6.7
9.0
Embodied Water, L/kg 450
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
31
Resilience: Unit (Modulus of Resilience), kJ/m3 950
83
Stiffness to Weight: Axial, points 8.1
7.2
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 22
7.1
Strength to Weight: Bending, points 22
9.3
Thermal Diffusivity, mm2/s 9.5
110
Thermal Shock Resistance, points 63
8.1

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0
99.95 to 99.998
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0
0 to 0.0050
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0.0020 to 0.0070
Silver (Ag), % 0
0 to 0.015
Zirconium (Zr), % 91 to 98
0