MakeItFrom.com
Menu (ESC)

S31277 Stainless Steel vs. 7108A Aluminum

S31277 stainless steel belongs to the iron alloys classification, while 7108A aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, 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 S31277 stainless steel and the bottom bar is 7108A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
69
Elongation at Break, % 45
11 to 13
Fatigue Strength, MPa 380
120 to 130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 80
26
Shear Strength, MPa 600
210
Tensile Strength: Ultimate (UTS), MPa 860
350
Tensile Strength: Yield (Proof), MPa 410
290 to 300

Thermal Properties

Latent Heat of Fusion, J/g 310
380
Maximum Temperature: Mechanical, °C 1100
210
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1410
520
Specific Heat Capacity, J/kg-K 460
870
Thermal Expansion, µm/m-K 16
24

Otherwise Unclassified Properties

Base Metal Price, % relative 36
10
Density, g/cm3 8.1
2.9
Embodied Carbon, kg CO2/kg material 6.7
8.3
Embodied Energy, MJ/kg 90
150
Embodied Water, L/kg 220
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
38 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 410
610 to 640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 29
33 to 34
Strength to Weight: Bending, points 25
38
Thermal Shock Resistance, points 19
15 to 16

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 460
Aluminum (Al), % 0
91.6 to 94.4
Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 20.5 to 23
0 to 0.040
Copper (Cu), % 0.5 to 1.5
0 to 0.050
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 35.5 to 46.2
0 to 0.3
Magnesium (Mg), % 0
0.7 to 1.5
Manganese (Mn), % 0 to 3.0
0 to 0.050
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
0
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0 to 0.2
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.030
Zinc (Zn), % 0
4.8 to 5.8
Zirconium (Zr), % 0
0.15 to 0.25
Residuals, % 0
0 to 0.15