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7049 Aluminum vs. AWS E316L

7049 aluminum belongs to the aluminum alloys classification, while AWS E316L belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 7049 aluminum and the bottom bar is AWS E316L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 6.2 to 7.0
34
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
78
Tensile Strength: Ultimate (UTS), MPa 510 to 530
550

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 480
1390
Specific Heat Capacity, J/kg-K 860
470
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
20
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 8.1
4.0
Embodied Energy, MJ/kg 140
55
Embodied Water, L/kg 1110
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
25
Strength to Weight: Axial, points 46 to 47
19
Strength to Weight: Bending, points 46 to 47
19
Thermal Diffusivity, mm2/s 51
4.0
Thermal Shock Resistance, points 22 to 23
14

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0.1 to 0.22
17 to 20
Copper (Cu), % 1.2 to 1.9
0 to 0.75
Iron (Fe), % 0 to 0.35
58.6 to 69.5
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
11 to 14
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0 to 0.15
0