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EN AC-21100 Aluminum vs. AWS E430Nb

EN AC-21100 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 EN AC-21100 aluminum and the bottom bar is AWS E430Nb.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
200
Elongation at Break, % 6.2 to 7.3
23
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 340 to 350
500

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Melting Completion (Liquidus), °C 670
1450
Melting Onset (Solidus), °C 550
1410
Specific Heat Capacity, J/kg-K 880
480
Thermal Conductivity, W/m-K 130
24
Thermal Expansion, µm/m-K 23
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 100
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
15
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.0
3.1
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1150
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 31 to 33
18
Strength to Weight: Bending, points 36 to 37
18
Thermal Diffusivity, mm2/s 48
6.6
Thermal Shock Resistance, points 15
13

Alloy Composition


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Aluminum (Al), % 93.4 to 95.7
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
15 to 18
Copper (Cu), % 4.2 to 5.2
0 to 0.75
Iron (Fe), % 0 to 0.19
76.2 to 84.5
Manganese (Mn), % 0 to 0.55
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 0.18
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0