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7175 Aluminum vs. AWS E430Nb

7175 aluminum belongs to the aluminum alloys classification, while AWS E430Nb belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 7175 aluminum and the bottom bar is AWS E430Nb.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 3.8 to 5.9
23
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 26
77
Tensile Strength: Ultimate (UTS), MPa 520 to 570
500

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 480
1410
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 140
24
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 99
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
15
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.2
3.1
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1130
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 48 to 52
18
Strength to Weight: Bending, points 48 to 51
18
Thermal Diffusivity, mm2/s 53
6.6
Thermal Shock Resistance, points 23 to 25
13

Alloy Composition

Aluminum (Al), % 88 to 91.4
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0.18 to 0.28
15 to 18
Copper (Cu), % 1.2 to 2.0
0 to 0.75
Iron (Fe), % 0 to 0.2
76.2 to 84.5
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0
0 to 0.6
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 5.1 to 6.1
0
Residuals, % 0 to 0.15
0