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R30006 Cobalt vs. C51000 Bronze

R30006 cobalt belongs to the cobalt alloys classification, while C51000 bronze belongs to the copper alloys. There are 26 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 R30006 cobalt and the bottom bar is C51000 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
110
Elongation at Break, % 1.0
2.7 to 64
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 85
42
Tensile Strength: Ultimate (UTS), MPa 900
330 to 780
Tensile Strength: Yield (Proof), MPa 540
130 to 750

Thermal Properties

Latent Heat of Fusion, J/g 320
200
Melting Completion (Liquidus), °C 1400
1050
Melting Onset (Solidus), °C 1290
960
Specific Heat Capacity, J/kg-K 450
380
Thermal Conductivity, W/m-K 15
77
Thermal Expansion, µm/m-K 11
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
18
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
18

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.8
Embodied Carbon, kg CO2/kg material 7.8
3.1
Embodied Energy, MJ/kg 110
50
Embodied Water, L/kg 500
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
7.0 to 490
Resilience: Unit (Modulus of Resilience), kJ/m3 670
75 to 2490
Stiffness to Weight: Axial, points 14
7.0
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 29
10 to 25
Strength to Weight: Bending, points 24
12 to 21
Thermal Diffusivity, mm2/s 3.9
23
Thermal Shock Resistance, points 26
12 to 28

Alloy Composition


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Carbon (C), % 0.9 to 1.4
0
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
92.9 to 95.5
Iron (Fe), % 0 to 3.0
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Phosphorus (P), % 0
0.030 to 0.35
Silicon (Si), % 0 to 2.0
0
Tin (Sn), % 0
4.5 to 5.8
Tungsten (W), % 4.0 to 6.0
0
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.5