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2011A Aluminum vs. EN 1.4347 Stainless Steel

2011A aluminum belongs to the aluminum alloys classification, while EN 1.4347 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 2011A aluminum and the bottom bar is EN 1.4347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 6.8 to 16
23
Fatigue Strength, MPa 75 to 100
320
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 310 to 410
660
Tensile Strength: Yield (Proof), MPa 140 to 310
480

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 660
1410
Melting Onset (Solidus), °C 550
1370
Specific Heat Capacity, J/kg-K 870
490
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 96
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
16
Density, g/cm3 3.1
7.7
Embodied Carbon, kg CO2/kg material 7.9
3.1
Embodied Energy, MJ/kg 150
44
Embodied Water, L/kg 1150
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
140
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
570
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 28 to 37
24
Strength to Weight: Bending, points 33 to 40
22
Thermal Diffusivity, mm2/s 49
4.0
Thermal Shock Resistance, points 14 to 18
19

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
0
Bismuth (Bi), % 0.2 to 0.6
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 4.5 to 6.0
0
Iron (Fe), % 0 to 0.5
62.2 to 69.4
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0