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7178 Aluminum vs. K93603 Alloy

7178 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 (11, 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 7178 aluminum and the bottom bar is K93603 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 27
72
Tensile Strength: Ultimate (UTS), MPa 240 to 640
490 to 810

Thermal Properties

Latent Heat of Fusion, J/g 370
270
Melting Completion (Liquidus), °C 630
1430
Melting Onset (Solidus), °C 480
1380
Specific Heat Capacity, J/kg-K 860
460
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
25
Density, g/cm3 3.1
8.2
Embodied Carbon, kg CO2/kg material 8.2
4.8
Embodied Energy, MJ/kg 150
66
Embodied Water, L/kg 1110
120

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 21 to 58
17 to 27
Strength to Weight: Bending, points 28 to 54
17 to 24
Thermal Shock Resistance, points 10 to 28
15 to 25

Alloy Composition

Aluminum (Al), % 85.4 to 89.5
0 to 0.1
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0.18 to 0.28
0 to 0.25
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 1.6 to 2.4
0
Iron (Fe), % 0 to 0.5
61.8 to 64
Magnesium (Mg), % 2.4 to 3.1
0 to 0.1
Manganese (Mn), % 0 to 0.3
0 to 0.6
Nickel (Ni), % 0
36
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
0 to 0.1
Zinc (Zn), % 6.3 to 7.3
0
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0 to 0.15
0

Comparable Variants