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2011A Aluminum vs. EN 1.3956 Stainless Steel

2011A aluminum belongs to the aluminum alloys classification, while EN 1.3956 stainless steel belongs to the iron 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 2011A aluminum and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 6.8 to 16
27
Fatigue Strength, MPa 75 to 100
240
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 310 to 410
650
Tensile Strength: Yield (Proof), MPa 140 to 310
330

Thermal Properties

Latent Heat of Fusion, J/g 390
300
Maximum Temperature: Mechanical, °C 190
1080
Melting Completion (Liquidus), °C 660
1420
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 870
480
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Base Metal Price, % relative 11
22
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 7.9
4.8
Embodied Energy, MJ/kg 150
68
Embodied Water, L/kg 1150
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 40
150
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 670
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 28 to 37
23
Strength to Weight: Bending, points 33 to 40
21
Thermal Shock Resistance, points 14 to 18
18

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
0
Bismuth (Bi), % 0.2 to 0.6
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20.5 to 23.5
Copper (Cu), % 4.5 to 6.0
0
Iron (Fe), % 0 to 0.5
51.9 to 62.1
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0