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R30605 Cobalt vs. AWS E80C-Ni1

R30605 cobalt belongs to the cobalt alloys classification, while AWS E80C-Ni1 belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is AWS E80C-Ni1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
27
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 81
72
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
620
Tensile Strength: Yield (Proof), MPa 470 to 1600
540

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 9.6
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.5

Otherwise Unclassified Properties

Density, g/cm3 9.6
7.8
Embodied Carbon, kg CO2/kg material 9.8
1.6
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 450
49

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
24
Strength to Weight: Axial, points 33 to 55
22
Strength to Weight: Bending, points 25 to 36
21
Thermal Diffusivity, mm2/s 2.5
11
Thermal Shock Resistance, points 31 to 52
18

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.12
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 0 to 3.0
95.1 to 99.2
Manganese (Mn), % 1.0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 9.0 to 11
0.8 to 1.1
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.9
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 14 to 16
0
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5