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EN AC-44300 Aluminum vs. AWS ERNiCu-7

EN AC-44300 aluminum belongs to the aluminum alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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-44300 aluminum and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
160
Elongation at Break, % 1.1
34
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
61
Tensile Strength: Ultimate (UTS), MPa 270
550

Thermal Properties

Latent Heat of Fusion, J/g 570
280
Melting Completion (Liquidus), °C 590
1280
Melting Onset (Solidus), °C 580
1240
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 130
20
Thermal Expansion, µm/m-K 21
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
50
Density, g/cm3 2.5
8.7
Embodied Carbon, kg CO2/kg material 7.7
8.5
Embodied Energy, MJ/kg 140
120
Embodied Water, L/kg 1050
250

Common Calculations

Stiffness to Weight: Axial, points 16
10
Stiffness to Weight: Bending, points 55
21
Strength to Weight: Axial, points 29
18
Strength to Weight: Bending, points 36
17
Thermal Diffusivity, mm2/s 58
5.3
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 84.3 to 89.5
0 to 1.3
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 0 to 0.1
18.3 to 36.5
Iron (Fe), % 0 to 1.0
0 to 2.5
Manganese (Mn), % 0 to 0.55
0 to 4.0
Nickel (Ni), % 0
62 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 13.5
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.15
1.5 to 3.0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0
0 to 0.5