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AWS BCo-1 vs. AWS E383

AWS BCo-1 belongs to the cobalt alloys classification, while AWS E383 belongs to the iron alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 18 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS BCo-1 and the bottom bar is AWS E383.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 700
580

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Melting Completion (Liquidus), °C 1150
1420
Melting Onset (Solidus), °C 1120
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Density, g/cm3 8.1
8.1
Embodied Carbon, kg CO2/kg material 8.0
6.4
Embodied Energy, MJ/kg 110
89
Embodied Water, L/kg 430
240

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
20
Strength to Weight: Bending, points 22
19
Thermal Shock Resistance, points 21
15

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0.7 to 0.9
0
Carbon (C), % 0.35 to 0.45
0 to 0.030
Chromium (Cr), % 18 to 20
26.5 to 29
Cobalt (Co), % 46 to 54
0
Copper (Cu), % 0
0.6 to 1.5
Iron (Fe), % 0 to 1.0
28.8 to 39.2
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0
3.2 to 4.2
Nickel (Ni), % 16 to 18
30 to 33
Phosphorus (P), % 0 to 0.020
0 to 0.020
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.5 to 8.5
0 to 0.9
Sulfur (S), % 0 to 0.020
0 to 0.020
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 3.5 to 4.5
0
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0