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AWS BCo-1 vs. EN AC-42200 Aluminum

AWS BCo-1 belongs to the cobalt alloys classification, while EN AC-42200 aluminum belongs to the aluminum alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS BCo-1 and the bottom bar is EN AC-42200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Poisson's Ratio 0.3
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 700
320

Thermal Properties

Latent Heat of Fusion, J/g 420
500
Melting Completion (Liquidus), °C 1150
610
Melting Onset (Solidus), °C 1120
600
Specific Heat Capacity, J/kg-K 480
910
Thermal Expansion, µm/m-K 12
22

Otherwise Unclassified Properties

Density, g/cm3 8.1
2.6
Embodied Carbon, kg CO2/kg material 8.0
8.0
Embodied Energy, MJ/kg 110
150
Embodied Water, L/kg 430
1110

Common Calculations

Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
53
Strength to Weight: Axial, points 24
34 to 35
Strength to Weight: Bending, points 22
40 to 41
Thermal Shock Resistance, points 21
15

Alloy Composition

Aluminum (Al), % 0 to 0.050
91 to 93.1
Boron (B), % 0.7 to 0.9
0
Carbon (C), % 0.35 to 0.45
0
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 46 to 54
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 0 to 1.0
0 to 0.19
Magnesium (Mg), % 0
0.45 to 0.7
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 16 to 18
0
Phosphorus (P), % 0 to 0.020
0
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.5 to 8.5
6.5 to 7.5
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.050
0 to 0.25
Tungsten (W), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.070
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0
0 to 0.1