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CC498K Bronze vs. R30605 Cobalt

CC498K bronze belongs to the copper alloys classification, while R30605 cobalt belongs to the cobalt alloys. There are 24 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 R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 14
34
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 41
81
Tensile Strength: Ultimate (UTS), MPa 260
1130 to 1900
Tensile Strength: Yield (Proof), MPa 130
470 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 190
290
Melting Completion (Liquidus), °C 1000
1410
Melting Onset (Solidus), °C 920
1330
Specific Heat Capacity, J/kg-K 370
410
Thermal Conductivity, W/m-K 73
9.6
Thermal Expansion, µm/m-K 18
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 10
1.8

Otherwise Unclassified Properties

Density, g/cm3 8.8
9.6
Embodied Carbon, kg CO2/kg material 3.2
9.8
Embodied Energy, MJ/kg 52
140
Embodied Water, L/kg 360
450

Common Calculations

Stiffness to Weight: Axial, points 6.9
12
Stiffness to Weight: Bending, points 18
21
Strength to Weight: Axial, points 8.1
33 to 55
Strength to Weight: Bending, points 10
25 to 36
Thermal Diffusivity, mm2/s 22
2.5
Thermal Shock Resistance, points 9.3
31 to 52

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.25
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 57
Copper (Cu), % 85 to 90
0
Iron (Fe), % 0 to 0.25
0 to 3.0
Lead (Pb), % 1.0 to 2.0
0
Manganese (Mn), % 0
1.0 to 2.0
Nickel (Ni), % 0 to 1.0
9.0 to 11
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 0.4
Sulfur (S), % 0 to 0.1
0 to 0.030
Tin (Sn), % 5.5 to 6.5
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 3.0 to 5.0
0