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AWS ER80S-B3L vs. R30003 Cobalt

AWS ER80S-B3L belongs to the iron alloys classification, while R30003 cobalt belongs to the cobalt alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS ER80S-B3L and the bottom bar is R30003 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 19
10 to 73
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
83
Tensile Strength: Ultimate (UTS), MPa 630
970 to 1720
Tensile Strength: Yield (Proof), MPa 530
510 to 1090

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1440
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 41
13
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.1
95
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 1.8
8.0
Embodied Energy, MJ/kg 23
110
Embodied Water, L/kg 60
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 730
600 to 2790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
32 to 57
Strength to Weight: Bending, points 21
26 to 38
Thermal Diffusivity, mm2/s 11
3.3
Thermal Shock Resistance, points 18
26 to 45

Alloy Composition


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Boron (B), % 0
0 to 0.1
Carbon (C), % 0 to 0.050
0 to 0.15
Chromium (Cr), % 2.3 to 2.7
19 to 21
Cobalt (Co), % 0
39 to 41
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 93.6 to 96
10 to 20.5
Manganese (Mn), % 0.4 to 0.7
1.5 to 2.5
Molybdenum (Mo), % 0.9 to 1.2
6.0 to 8.0
Nickel (Ni), % 0 to 0.2
14 to 16
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0.4 to 0.7
0 to 1.2
Sulfur (S), % 0 to 0.025
0 to 0.015
Residuals, % 0 to 0.5
0