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R30006 Cobalt vs. AWS E80C-Ni3

R30006 cobalt belongs to the cobalt alloys classification, while AWS E80C-Ni3 belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R30006 cobalt and the bottom bar is AWS E80C-Ni3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 1.0
27
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 85
72
Tensile Strength: Ultimate (UTS), MPa 900
630
Tensile Strength: Yield (Proof), MPa 540
530

Thermal Properties

Latent Heat of Fusion, J/g 320
260
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1290
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
8.5

Otherwise Unclassified Properties

Density, g/cm3 8.6
7.8
Embodied Carbon, kg CO2/kg material 7.8
1.7
Embodied Energy, MJ/kg 110
23
Embodied Water, L/kg 500
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8
160
Resilience: Unit (Modulus of Resilience), kJ/m3 670
740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 3.9
14
Thermal Shock Resistance, points 26
19

Alloy Composition


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Carbon (C), % 0.9 to 1.4
0 to 0.12
Chromium (Cr), % 27 to 32
0
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 0 to 3.0
92.8 to 97.3
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
2.8 to 3.8
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 0.9
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 4.0 to 6.0
0
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5