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C93200 Bronze vs. R30816 Cobalt

C93200 bronze belongs to the copper alloys classification, while R30816 cobalt belongs to the cobalt alloys. There are 25 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 C93200 bronze and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 20
23
Fatigue Strength, MPa 110
250
Poisson's Ratio 0.35
0.3
Shear Modulus, GPa 38
81
Tensile Strength: Ultimate (UTS), MPa 240
1020
Tensile Strength: Yield (Proof), MPa 130
460

Thermal Properties

Latent Heat of Fusion, J/g 180
300
Melting Completion (Liquidus), °C 980
1540
Melting Onset (Solidus), °C 850
1460
Specific Heat Capacity, J/kg-K 360
420
Thermal Conductivity, W/m-K 59
13
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Density, g/cm3 8.8
9.1
Embodied Carbon, kg CO2/kg material 3.2
20
Embodied Energy, MJ/kg 52
320
Embodied Water, L/kg 370
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
190
Resilience: Unit (Modulus of Resilience), kJ/m3 76
510
Stiffness to Weight: Axial, points 6.5
13
Stiffness to Weight: Bending, points 18
22
Strength to Weight: Axial, points 7.5
31
Strength to Weight: Bending, points 9.7
25
Thermal Diffusivity, mm2/s 18
3.3
Thermal Shock Resistance, points 9.3
28

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.35
0
Carbon (C), % 0
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 81 to 85
0
Iron (Fe), % 0 to 0.2
0 to 5.0
Lead (Pb), % 6.0 to 8.0
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0 to 1.0
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0 to 1.5
0 to 0.040
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0 to 0.080
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tin (Sn), % 6.3 to 7.5
0
Tungsten (W), % 0
3.5 to 4.5
Zinc (Zn), % 2.0 to 4.0
0
Residuals, % 0 to 1.0
0