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C91600 Bronze vs. R30155 Cobalt

C91600 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 C91600 bronze and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 84
220
Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 11
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 41
81
Tensile Strength: Ultimate (UTS), MPa 310
850
Tensile Strength: Yield (Proof), MPa 160
390

Thermal Properties

Latent Heat of Fusion, J/g 190
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 1030
1470
Melting Onset (Solidus), °C 860
1420
Specific Heat Capacity, J/kg-K 370
450
Thermal Conductivity, W/m-K 71
12
Thermal Expansion, µm/m-K 18
14

Otherwise Unclassified Properties

Base Metal Price, % relative 36
80
Density, g/cm3 8.8
8.5
Embodied Carbon, kg CO2/kg material 3.7
9.7
Embodied Energy, MJ/kg 61
150
Embodied Water, L/kg 390
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
230
Resilience: Unit (Modulus of Resilience), kJ/m3 120
370
Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 9.9
28
Strength to Weight: Bending, points 12
24
Thermal Diffusivity, mm2/s 22
3.2
Thermal Shock Resistance, points 11
21

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
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), % 85.9 to 89.1
0
Iron (Fe), % 0 to 0.2
24.3 to 36.2
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 1.2 to 2.0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.3
0 to 0.040
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tin (Sn), % 9.7 to 10.8
0
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.25
0