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AWS BAg-37 vs. 4047 Aluminum

AWS BAg-37 belongs to the otherwise unclassified metals classification, while 4047 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 BAg-37 and the bottom bar is 4047 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 94
72
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 36
27
Tensile Strength: Ultimate (UTS), MPa 180
120

Thermal Properties

Brazing Temperature, °C 780 to 890
580 to 600
Latent Heat of Fusion, J/g 150
570
Melting Completion (Liquidus), °C 780
580
Melting Onset (Solidus), °C 690
580
Specific Heat Capacity, J/kg-K 350
900
Thermal Expansion, µm/m-K 21
21

Otherwise Unclassified Properties

Density, g/cm3 8.5
2.5
Embodied Carbon, kg CO2/kg material 26
7.7
Embodied Energy, MJ/kg 410
140

Common Calculations

Stiffness to Weight: Axial, points 6.1
16
Stiffness to Weight: Bending, points 18
55
Strength to Weight: Axial, points 5.9
13
Strength to Weight: Bending, points 8.3
21
Thermal Shock Resistance, points 6.6
5.6

Alloy Composition

Aluminum (Al), % 0
85.3 to 89
Copper (Cu), % 39 to 41
0 to 0.3
Iron (Fe), % 0
0 to 0.8
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.15
Silicon (Si), % 0
11 to 13
Silver (Ag), % 24 to 26
0
Tin (Sn), % 1.5 to 2.5
0
Zinc (Zn), % 31 to 35
0 to 0.2
Residuals, % 0
0 to 0.15