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C95200 Bronze vs. R30155 Cobalt

C95200 bronze belongs to the copper alloys classification, while R30155 cobalt belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C95200 bronze and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
220
Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 29
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 42
81
Tensile Strength: Ultimate (UTS), MPa 520
850
Tensile Strength: Yield (Proof), MPa 190
390

Thermal Properties

Latent Heat of Fusion, J/g 230
300
Maximum Temperature: Mechanical, °C 220
1100
Melting Completion (Liquidus), °C 1050
1470
Melting Onset (Solidus), °C 1040
1420
Specific Heat Capacity, J/kg-K 430
450
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 18
14

Otherwise Unclassified Properties

Base Metal Price, % relative 28
80
Density, g/cm3 8.3
8.5
Embodied Carbon, kg CO2/kg material 3.0
9.7
Embodied Energy, MJ/kg 50
150
Embodied Water, L/kg 380
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
230
Resilience: Unit (Modulus of Resilience), kJ/m3 170
370
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 17
28
Strength to Weight: Bending, points 17
24
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 19
21

Alloy Composition

Aluminum (Al), % 8.5 to 9.5
0
Carbon (C), % 0
0.080 to 0.16
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 86 to 89
0
Iron (Fe), % 2.5 to 4.0
24.3 to 36.2
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tungsten (W), % 0
2.0 to 3.0
Residuals, % 0 to 1.0
0