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EN AC-71100 Aluminum vs. S13800 Stainless Steel

EN AC-71100 aluminum belongs to the aluminum alloys classification, while S13800 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, 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 EN AC-71100 aluminum and the bottom bar is S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 1.1
11 to 18
Fatigue Strength, MPa 150
410 to 870
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 260
980 to 1730
Tensile Strength: Yield (Proof), MPa 230
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 490
280
Maximum Temperature: Mechanical, °C 170
810
Melting Completion (Liquidus), °C 580
1450
Melting Onset (Solidus), °C 520
1410
Specific Heat Capacity, J/kg-K 860
470
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 97
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
15
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 7.4
3.4
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 1010
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 360
1090 to 5490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 25
35 to 61
Strength to Weight: Bending, points 31
28 to 41
Thermal Shock Resistance, points 12
33 to 58

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0.9 to 1.4
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
12.3 to 13.2
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
73.6 to 77.3
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0 to 0.2
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
7.5 to 8.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 7.5 to 9.5
0 to 0.1
Sulfur (S), % 0
0 to 0.0080
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0