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7049 Aluminum vs. AWS ERNiCrMo-10

7049 aluminum belongs to the aluminum alloys classification, while AWS ERNiCrMo-10 belongs to the nickel 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 7049 aluminum and the bottom bar is AWS ERNiCrMo-10.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
220
Elongation at Break, % 6.2 to 7.0
28
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
84
Tensile Strength: Ultimate (UTS), MPa 510 to 530
790

Thermal Properties

Latent Heat of Fusion, J/g 370
320
Melting Completion (Liquidus), °C 640
1550
Melting Onset (Solidus), °C 480
1490
Specific Heat Capacity, J/kg-K 860
420
Thermal Conductivity, W/m-K 130
10
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
70
Density, g/cm3 3.1
8.9
Embodied Carbon, kg CO2/kg material 8.1
12
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 1110
300

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 46 to 47
25
Strength to Weight: Bending, points 46 to 47
21
Thermal Diffusivity, mm2/s 51
2.7
Thermal Shock Resistance, points 22 to 23
21

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0.1 to 0.22
20 to 22.5
Cobalt (Co), % 0
0 to 2.5
Copper (Cu), % 1.2 to 1.9
0 to 0.5
Iron (Fe), % 0 to 0.35
2.0 to 6.0
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0 to 0.5
Molybdenum (Mo), % 0
12.5 to 14.5
Nickel (Ni), % 0
49 to 63
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.25
0 to 0.080
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.1
0
Tungsten (W), % 0
2.5 to 3.5
Vanadium (V), % 0
0 to 0.35
Zinc (Zn), % 7.2 to 8.2
0
Residuals, % 0
0 to 0.5