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R30006 Cobalt vs. AWS E330H

R30006 cobalt belongs to the cobalt alloys classification, while AWS E330H belongs to the iron alloys. There are 23 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 AWS E330H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
190
Elongation at Break, % 1.0
11
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 85
76
Tensile Strength: Ultimate (UTS), MPa 900
690

Thermal Properties

Latent Heat of Fusion, J/g 320
290
Melting Completion (Liquidus), °C 1400
1400
Melting Onset (Solidus), °C 1290
1350
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 1.7
1.9

Otherwise Unclassified Properties

Density, g/cm3 8.6
8.1
Embodied Carbon, kg CO2/kg material 7.8
5.4
Embodied Energy, MJ/kg 110
76
Embodied Water, L/kg 500
180

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 29
24
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 3.9
3.2
Thermal Shock Resistance, points 26
19

Alloy Composition

Carbon (C), % 0.9 to 1.4
0.35 to 0.45
Chromium (Cr), % 27 to 32
14 to 17
Cobalt (Co), % 48.6 to 68.1
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 0 to 3.0
40.5 to 51.7
Manganese (Mn), % 0
1.0 to 2.5
Molybdenum (Mo), % 0 to 1.0
0 to 0.75
Nickel (Ni), % 0 to 3.0
33 to 37
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 4.0 to 6.0
0