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4145 Aluminum vs. AWS E320

4145 aluminum belongs to the aluminum alloys classification, while AWS E320 belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, 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 4145 aluminum and the bottom bar is AWS E320.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
200
Elongation at Break, % 2.2
34
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 28
77
Tensile Strength: Ultimate (UTS), MPa 120
620

Thermal Properties

Latent Heat of Fusion, J/g 540
300
Melting Completion (Liquidus), °C 590
1410
Melting Onset (Solidus), °C 520
1360
Specific Heat Capacity, J/kg-K 880
460
Thermal Expansion, µm/m-K 21
14

Otherwise Unclassified Properties

Base Metal Price, % relative 10
38
Density, g/cm3 2.8
8.2
Embodied Carbon, kg CO2/kg material 7.6
6.5
Embodied Energy, MJ/kg 140
91
Embodied Water, L/kg 1040
220

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12
21
Strength to Weight: Bending, points 19
20
Thermal Shock Resistance, points 5.5
16

Alloy Composition


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Aluminum (Al), % 83 to 87.4
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.15
19 to 21
Copper (Cu), % 3.3 to 4.7
3.0 to 4.0
Iron (Fe), % 0 to 0.8
31.8 to 43.5
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0 to 0.15
0.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
32 to 36
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 9.3 to 10.7
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0