MakeItFrom.com
Menu (ESC)

7075 Aluminum vs. S44536 Stainless Steel

7075 aluminum belongs to the aluminum alloys classification, while S44536 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 7075 aluminum and the bottom bar is S44536 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 1.8 to 12
22
Fatigue Strength, MPa 110 to 190
190
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 26
78
Shear Strength, MPa 150 to 340
290
Tensile Strength: Ultimate (UTS), MPa 240 to 590
460
Tensile Strength: Yield (Proof), MPa 120 to 510
280

Thermal Properties

Latent Heat of Fusion, J/g 380
290
Maximum Temperature: Mechanical, °C 200
990
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 480
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 98
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.8
Embodied Energy, MJ/kg 150
41
Embodied Water, L/kg 1120
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
89
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 22 to 54
17
Strength to Weight: Bending, points 28 to 52
17
Thermal Diffusivity, mm2/s 50
5.6
Thermal Shock Resistance, points 10 to 25
16

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0.18 to 0.28
20 to 23
Copper (Cu), % 1.2 to 2.0
0
Iron (Fe), % 0 to 0.5
72.8 to 80
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.3
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.8
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0 to 0.8
Zinc (Zn), % 5.1 to 6.1
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0