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CC498K Bronze vs. R30816 Cobalt

CC498K 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 CC498K bronze and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 78
280
Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 14
23
Poisson's Ratio 0.34
0.3
Shear Modulus, GPa 41
81
Tensile Strength: Ultimate (UTS), MPa 260
1020
Tensile Strength: Yield (Proof), MPa 130
460

Thermal Properties

Latent Heat of Fusion, J/g 190
300
Melting Completion (Liquidus), °C 1000
1540
Melting Onset (Solidus), °C 920
1460
Specific Heat Capacity, J/kg-K 370
420
Thermal Conductivity, W/m-K 73
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 360
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
190
Resilience: Unit (Modulus of Resilience), kJ/m3 72
510
Stiffness to Weight: Axial, points 6.9
13
Stiffness to Weight: Bending, points 18
22
Strength to Weight: Axial, points 8.1
31
Strength to Weight: Bending, points 10
25
Thermal Diffusivity, mm2/s 22
3.3
Thermal Shock Resistance, points 9.3
28

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.25
0
Carbon (C), % 0
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 85 to 90
0
Iron (Fe), % 0 to 0.25
0 to 5.0
Lead (Pb), % 1.0 to 2.0
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 0.050
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), % 5.5 to 6.5
0
Tungsten (W), % 0
3.5 to 4.5
Zinc (Zn), % 3.0 to 5.0
0