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EN 1.3956 Stainless Steel vs. 8011A Aluminum

EN 1.3956 stainless steel belongs to the iron alloys classification, while 8011A aluminum belongs to the aluminum alloys. There are 25 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 1.3956 stainless steel and the bottom bar is 8011A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
69
Elongation at Break, % 27
1.7 to 28
Fatigue Strength, MPa 240
33 to 76
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
26
Tensile Strength: Ultimate (UTS), MPa 650
100 to 180
Tensile Strength: Yield (Proof), MPa 330
34 to 170

Thermal Properties

Latent Heat of Fusion, J/g 300
400
Maximum Temperature: Mechanical, °C 1080
170
Melting Completion (Liquidus), °C 1420
650
Melting Onset (Solidus), °C 1380
630
Specific Heat Capacity, J/kg-K 480
900
Thermal Expansion, µm/m-K 13
23

Otherwise Unclassified Properties

Base Metal Price, % relative 22
9.0
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 4.8
8.2
Embodied Energy, MJ/kg 68
150
Embodied Water, L/kg 180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
3.0 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 270
8.2 to 200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 23
11 to 18
Strength to Weight: Bending, points 21
18 to 26
Thermal Shock Resistance, points 18
4.6 to 8.1

Alloy Composition

Aluminum (Al), % 0
97.5 to 99.1
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0 to 0.1
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 51.9 to 62.1
0.5 to 1.0
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 4.0 to 6.0
0 to 0.1
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.4 to 0.8
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0.1 to 0.3
0
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15