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C61500 Bronze vs. R30001 Cobalt

C61500 bronze belongs to the copper alloys classification, while R30001 cobalt belongs to the cobalt alloys. There are 23 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 C61500 bronze and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
220
Elongation at Break, % 3.0 to 55
1.0
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 42
86
Tensile Strength: Ultimate (UTS), MPa 480 to 970
620

Thermal Properties

Latent Heat of Fusion, J/g 220
310
Melting Completion (Liquidus), °C 1040
1530
Melting Onset (Solidus), °C 1030
1260
Specific Heat Capacity, J/kg-K 430
430
Thermal Conductivity, W/m-K 58
15
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 13
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.4
9.0
Embodied Carbon, kg CO2/kg material 3.2
8.9
Embodied Energy, MJ/kg 52
130
Embodied Water, L/kg 380
460

Common Calculations

Stiffness to Weight: Axial, points 7.5
14
Stiffness to Weight: Bending, points 19
22
Strength to Weight: Axial, points 16 to 32
19
Strength to Weight: Bending, points 16 to 26
18
Thermal Diffusivity, mm2/s 16
3.7
Thermal Shock Resistance, points 17 to 34
19

Alloy Composition

Aluminum (Al), % 7.7 to 8.3
0
Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 89 to 90.5
0
Iron (Fe), % 0
0 to 3.0
Lead (Pb), % 0 to 0.015
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 1.8 to 2.2
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tungsten (W), % 0
11 to 13
Residuals, % 0 to 0.5
0