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C86200 Bronze vs. R30155 Cobalt

C86200 bronze belongs to the copper alloys classification, while R30155 cobalt belongs to the iron 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 C86200 bronze and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 21
34
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 42
81
Tensile Strength: Ultimate (UTS), MPa 710
850
Tensile Strength: Yield (Proof), MPa 350
390

Thermal Properties

Latent Heat of Fusion, J/g 190
300
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 940
1470
Melting Onset (Solidus), °C 900
1420
Specific Heat Capacity, J/kg-K 410
450
Thermal Conductivity, W/m-K 35
12
Thermal Expansion, µm/m-K 20
14

Otherwise Unclassified Properties

Base Metal Price, % relative 23
80
Density, g/cm3 8.0
8.5
Embodied Carbon, kg CO2/kg material 2.9
9.7
Embodied Energy, MJ/kg 49
150
Embodied Water, L/kg 340
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
230
Resilience: Unit (Modulus of Resilience), kJ/m3 540
370
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 25
28
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 23
21

Alloy Composition

Aluminum (Al), % 3.0 to 4.9
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), % 60 to 66
0
Iron (Fe), % 2.0 to 4.0
24.3 to 36.2
Lead (Pb), % 0 to 0.2
0
Manganese (Mn), % 2.5 to 5.0
1.0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0 to 1.0
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
Tin (Sn), % 0 to 0.2
0
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 22 to 28
0
Residuals, % 0 to 1.0
0