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CC491K Bronze vs. R30008 Cobalt

CC491K bronze belongs to the copper alloys classification, while R30008 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is CC491K bronze and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 13
1.1 to 73
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
83
Tensile Strength: Ultimate (UTS), MPa 260
950 to 1700
Tensile Strength: Yield (Proof), MPa 120
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 190
320
Melting Completion (Liquidus), °C 980
1400
Melting Onset (Solidus), °C 900
1330
Specific Heat Capacity, J/kg-K 370
450
Thermal Expansion, µm/m-K 19
13

Otherwise Unclassified Properties

Base Metal Price, % relative 31
95
Density, g/cm3 8.9
8.4
Embodied Carbon, kg CO2/kg material 3.1
8.1
Embodied Energy, MJ/kg 51
110
Embodied Water, L/kg 350
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 67
590 to 2720
Stiffness to Weight: Axial, points 6.7
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.1
31 to 56
Strength to Weight: Bending, points 10
25 to 37
Thermal Shock Resistance, points 9.3
25 to 44

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.25
0
Boron (B), % 0
0 to 0.0010
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Copper (Cu), % 81 to 87
0
Iron (Fe), % 0 to 0.3
7.6 to 20
Lead (Pb), % 4.0 to 6.0
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0 to 2.0
15 to 18
Phosphorus (P), % 0 to 0.1
0 to 0.015
Silicon (Si), % 0 to 0.010
0 to 1.2
Sulfur (S), % 0 to 0.1
0 to 0.015
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 4.0 to 6.0
0