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R30016 Cobalt vs. CR004A Copper

R30016 cobalt belongs to the cobalt alloys classification, while CR004A copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R30016 cobalt and the bottom bar is CR004A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
120
Elongation at Break, % 8.4
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
43
Tensile Strength: Ultimate (UTS), MPa 1010
220
Tensile Strength: Yield (Proof), MPa 580
130

Thermal Properties

Latent Heat of Fusion, J/g 320
210
Melting Completion (Liquidus), °C 1360
1090
Melting Onset (Solidus), °C 1270
1040
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 15
380
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
100
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
100

Otherwise Unclassified Properties

Density, g/cm3 8.5
9.0
Embodied Carbon, kg CO2/kg material 7.7
2.6
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 500
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 72
29
Resilience: Unit (Modulus of Resilience), kJ/m3 770
76
Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 33
6.8
Strength to Weight: Bending, points 26
9.0
Thermal Diffusivity, mm2/s 3.9
110
Thermal Shock Resistance, points 24
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 49.6 to 66.9
0
Copper (Cu), % 0
99.9 to 100
Iron (Fe), % 0 to 3.0
0
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0.5 to 2.0
0
Molybdenum (Mo), % 0 to 1.5
0
Nickel (Ni), % 0 to 3.0
0
Oxygen (O), % 0
0 to 0.040
Silicon (Si), % 0.2 to 2.0
0
Silver (Ag), % 0
0 to 0.015
Tungsten (W), % 3.5 to 5.5
0