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R30003 Cobalt vs. AWS E330H

R30003 cobalt belongs to the cobalt alloys classification, while AWS E330H belongs to the iron alloys. They have 48% of their average alloy composition in common. 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 R30003 cobalt and the bottom bar is AWS E330H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 10 to 73
11
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 83
76
Tensile Strength: Ultimate (UTS), MPa 970 to 1720
690

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Melting Completion (Liquidus), °C 1400
1400
Melting Onset (Solidus), °C 1440
1350
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 95
30
Density, g/cm3 8.4
8.1
Embodied Carbon, kg CO2/kg material 8.0
5.4
Embodied Energy, MJ/kg 110
76
Embodied Water, L/kg 400
180

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 32 to 57
24
Strength to Weight: Bending, points 26 to 38
22
Thermal Diffusivity, mm2/s 3.3
3.2
Thermal Shock Resistance, points 26 to 45
19

Alloy Composition

Boron (B), % 0 to 0.1
0
Carbon (C), % 0 to 0.15
0.35 to 0.45
Chromium (Cr), % 19 to 21
14 to 17
Cobalt (Co), % 39 to 41
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 10 to 20.5
40.5 to 51.7
Manganese (Mn), % 1.5 to 2.5
1.0 to 2.5
Molybdenum (Mo), % 6.0 to 8.0
0 to 0.75
Nickel (Ni), % 14 to 16
33 to 37
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030