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R30075 Cobalt vs. CR024A Copper

R30075 cobalt belongs to the cobalt alloys classification, while CR024A copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R30075 cobalt and the bottom bar is CR024A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210 to 250
120
Elongation at Break, % 12
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 82 to 98
43
Tensile Strength: Ultimate (UTS), MPa 780 to 1280
230
Tensile Strength: Yield (Proof), MPa 480 to 840
140

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1090
Melting Onset (Solidus), °C 1290
1040
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 13
370
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
100
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
100

Otherwise Unclassified Properties

Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 8.1
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 530
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 140
31
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1410
83
Stiffness to Weight: Axial, points 14 to 17
7.2
Stiffness to Weight: Bending, points 24 to 25
18
Strength to Weight: Axial, points 26 to 42
7.1
Strength to Weight: Bending, points 22 to 31
9.3
Thermal Diffusivity, mm2/s 3.5
110
Thermal Shock Resistance, points 21 to 29
8.1

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Boron (B), % 0 to 0.010
0
Carbon (C), % 0 to 0.35
0
Chromium (Cr), % 27 to 30
0
Cobalt (Co), % 58.7 to 68
0
Copper (Cu), % 0
99.9 to 99.985
Iron (Fe), % 0 to 0.75
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 5.0 to 7.0
0
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.020
0.015 to 0.040
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0 to 0.2
0