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2011A Aluminum vs. AISI 334 Stainless Steel

2011A aluminum belongs to the aluminum alloys classification, while AISI 334 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
200
Elongation at Break, % 6.8 to 16
34
Fatigue Strength, MPa 75 to 100
150
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 190 to 250
360
Tensile Strength: Ultimate (UTS), MPa 310 to 410
540
Tensile Strength: Yield (Proof), MPa 140 to 310
190

Thermal Properties

Latent Heat of Fusion, J/g 390
290
Maximum Temperature: Mechanical, °C 190
1000
Melting Completion (Liquidus), °C 660
1410
Melting Onset (Solidus), °C 550
1370
Specific Heat Capacity, J/kg-K 870
480
Thermal Expansion, µm/m-K 23
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
22
Density, g/cm3 3.1
7.9
Embodied Carbon, kg CO2/kg material 7.9
4.1
Embodied Energy, MJ/kg 150
59
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
96
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 28 to 37
19
Strength to Weight: Bending, points 33 to 40
19
Thermal Shock Resistance, points 14 to 18
12

Alloy Composition

Aluminum (Al), % 91.5 to 95.1
0.15 to 0.6
Bismuth (Bi), % 0.2 to 0.6
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
18 to 20
Copper (Cu), % 4.5 to 6.0
0
Iron (Fe), % 0 to 0.5
55.7 to 62.7
Lead (Pb), % 0.2 to 0.6
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
19 to 21
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.15
0