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AWS BAg-18 vs. 3203 Aluminum

AWS BAg-18 belongs to the otherwise unclassified metals classification, while 3203 aluminum belongs to the aluminum alloys. There are 17 material properties with values for both materials. Properties with values for just one material (14, 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 BAg-18 and the bottom bar is 3203 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
70
Poisson's Ratio 0.36
0.33
Shear Modulus, GPa 30
26
Tensile Strength: Ultimate (UTS), MPa 170
110 to 200

Thermal Properties

Latent Heat of Fusion, J/g 130
400
Melting Completion (Liquidus), °C 720
650
Melting Onset (Solidus), °C 600
620
Specific Heat Capacity, J/kg-K 280
900
Thermal Expansion, µm/m-K 19
23

Otherwise Unclassified Properties

Density, g/cm3 9.7
2.8
Embodied Carbon, kg CO2/kg material 59
8.1
Embodied Energy, MJ/kg 930
150

Common Calculations

Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 15
50
Strength to Weight: Axial, points 4.9
11 to 20
Strength to Weight: Bending, points 7.0
19 to 28
Thermal Shock Resistance, points 7.7
4.9 to 8.8

Alloy Composition

Aluminum (Al), % 0
96.9 to 99
Copper (Cu), % 28.4 to 31.5
0 to 0.050
Iron (Fe), % 0
0 to 0.7
Manganese (Mn), % 0
1.0 to 1.5
Silicon (Si), % 0
0 to 0.6
Silver (Ag), % 59 to 61
0
Tin (Sn), % 9.5 to 10.5
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.15