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CC494K Bronze vs. R30816 Cobalt

CC494K 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 (6, in this case) are not shown.

For each property being compared, the top bar is CC494K bronze and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 67
280
Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 7.6
23
Poisson's Ratio 0.35
0.3
Shear Modulus, GPa 39
81
Tensile Strength: Ultimate (UTS), MPa 210
1020
Tensile Strength: Yield (Proof), MPa 94
460

Thermal Properties

Latent Heat of Fusion, J/g 180
300
Melting Completion (Liquidus), °C 970
1540
Melting Onset (Solidus), °C 890
1460
Specific Heat Capacity, J/kg-K 360
420
Thermal Conductivity, W/m-K 63
13
Thermal Expansion, µm/m-K 19
12

Otherwise Unclassified Properties

Density, g/cm3 9.1
9.1
Embodied Carbon, kg CO2/kg material 3.1
20
Embodied Energy, MJ/kg 50
320
Embodied Water, L/kg 360
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
190
Resilience: Unit (Modulus of Resilience), kJ/m3 43
510
Stiffness to Weight: Axial, points 6.4
13
Stiffness to Weight: Bending, points 17
22
Strength to Weight: Axial, points 6.5
31
Strength to Weight: Bending, points 8.8
25
Thermal Diffusivity, mm2/s 19
3.3
Thermal Shock Resistance, points 7.8
28

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.5
0
Carbon (C), % 0
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 78 to 87
0
Iron (Fe), % 0 to 0.25
0 to 5.0
Lead (Pb), % 8.0 to 10
0
Manganese (Mn), % 0 to 0.2
1.0 to 2.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0 to 2.0
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0 to 0.1
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0 to 0.1
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Tin (Sn), % 4.0 to 6.0
0
Tungsten (W), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 2.0
0