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AWS ERNiCr-3 vs. 7475 Aluminum

AWS ERNiCr-3 belongs to the nickel alloys classification, while 7475 aluminum belongs to the aluminum alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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 AWS ERNiCr-3 and the bottom bar is 7475 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 34
10 to 12
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 630
530 to 590

Thermal Properties

Latent Heat of Fusion, J/g 320
380
Melting Completion (Liquidus), °C 1380
640
Melting Onset (Solidus), °C 1330
480
Specific Heat Capacity, J/kg-K 460
870
Thermal Expansion, µm/m-K 13
23

Otherwise Unclassified Properties

Base Metal Price, % relative 70
10
Density, g/cm3 8.4
3.0
Embodied Carbon, kg CO2/kg material 11
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 280
1130

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
46
Strength to Weight: Axial, points 21
49 to 55
Strength to Weight: Bending, points 19
48 to 52
Thermal Shock Resistance, points 18
23 to 26

Alloy Composition

Aluminum (Al), % 0
88.6 to 91.6
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 18 to 22
0.18 to 0.25
Cobalt (Co), % 0 to 0.12
0
Copper (Cu), % 0 to 0.5
1.2 to 1.9
Iron (Fe), % 0 to 3.0
0 to 0.12
Magnesium (Mg), % 0
1.9 to 2.6
Manganese (Mn), % 2.5 to 3.5
0 to 0.060
Nickel (Ni), % 67 to 77.5
0
Niobium (Nb), % 2.0 to 3.0
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.75
0 to 0.060
Zinc (Zn), % 0
5.1 to 6.2
Residuals, % 0
0 to 0.15