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4343 Aluminum vs. AWS BAg-19

4343 aluminum belongs to the aluminum alloys classification, while AWS BAg-19 belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (15, 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 4343 aluminum and the bottom bar is AWS BAg-19.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
74
Poisson's Ratio 0.33
0.37
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 110
140

Thermal Properties

Brazing Temperature, °C 600 to 620
770 to 980
Latent Heat of Fusion, J/g 510
120
Melting Completion (Liquidus), °C 620
890
Melting Onset (Solidus), °C 580
760
Specific Heat Capacity, J/kg-K 900
250
Thermal Expansion, µm/m-K 22
20

Otherwise Unclassified Properties

Density, g/cm3 2.6
10

Common Calculations

Stiffness to Weight: Axial, points 15
4.0
Stiffness to Weight: Bending, points 53
14
Strength to Weight: Axial, points 12
3.8
Strength to Weight: Bending, points 20
5.8
Thermal Shock Resistance, points 5.2
6.9

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
0
Copper (Cu), % 0 to 0.25
6.6 to 7.9
Iron (Fe), % 0 to 0.8
0
Lithium (Li), % 0
0.15 to 0.3
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 6.8 to 8.2
0
Silver (Ag), % 0
92 to 93
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.15