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R30605 Cobalt vs. CR007A Copper

R30605 cobalt belongs to the cobalt alloys classification, while CR007A copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is CR007A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Elongation at Break, % 34
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 81
43
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
230
Tensile Strength: Yield (Proof), MPa 470 to 1600
140

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Melting Completion (Liquidus), °C 1410
1090
Melting Onset (Solidus), °C 1330
1040
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 9.6
380
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
100
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
100

Otherwise Unclassified Properties

Density, g/cm3 9.6
9.0
Embodied Carbon, kg CO2/kg material 9.8
2.6
Embodied Energy, MJ/kg 140
41
Embodied Water, L/kg 450
310

Common Calculations

Stiffness to Weight: Axial, points 12
7.2
Stiffness to Weight: Bending, points 21
18
Strength to Weight: Axial, points 33 to 55
7.1
Strength to Weight: Bending, points 25 to 36
9.3
Thermal Diffusivity, mm2/s 2.5
110
Thermal Shock Resistance, points 31 to 52
8.1

Alloy Composition

Antimony (Sb), % 0
0 to 0.00040
Arsenic (As), % 0
0 to 0.00050
Bismuth (Bi), % 0
0 to 0.00020
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
99.994 to 100
Iron (Fe), % 0 to 3.0
0 to 0.0010
Lead (Pb), % 0
0 to 0.00050
Manganese (Mn), % 1.0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Selenium (Se), % 0
0 to 0.00020
Silicon (Si), % 0 to 0.4
0
Silver (Ag), % 0
0 to 0.0025
Sulfur (S), % 0 to 0.030
0 to 0.0015
Tellurium (Te), % 0
0 to 0.00020
Tungsten (W), % 14 to 16
0