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7020 Aluminum vs. K93603 Alloy

7020 aluminum belongs to the aluminum alloys classification, while K93603 alloy belongs to the iron alloys. There are 19 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 7020 aluminum and the bottom bar is K93603 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 26
72
Tensile Strength: Ultimate (UTS), MPa 190 to 390
490 to 810

Thermal Properties

Latent Heat of Fusion, J/g 380
270
Melting Completion (Liquidus), °C 650
1430
Melting Onset (Solidus), °C 610
1380
Specific Heat Capacity, J/kg-K 880
460
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
25
Density, g/cm3 2.9
8.2
Embodied Carbon, kg CO2/kg material 8.3
4.8
Embodied Energy, MJ/kg 150
66
Embodied Water, L/kg 1150
120

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 18 to 37
17 to 27
Strength to Weight: Bending, points 25 to 41
17 to 24
Thermal Shock Resistance, points 8.3 to 17
15 to 25

Alloy Composition

Aluminum (Al), % 91.2 to 94.8
0 to 0.1
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0.1 to 0.35
0 to 0.25
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.4
61.8 to 64
Magnesium (Mg), % 1.0 to 1.4
0 to 0.1
Manganese (Mn), % 0.050 to 0.5
0 to 0.6
Nickel (Ni), % 0
36
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.35
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0 to 0.1
Zinc (Zn), % 4.0 to 5.0
0
Zirconium (Zr), % 0.080 to 0.25
0 to 0.1
Residuals, % 0 to 0.15
0

Comparable Variants