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AISI 440A Stainless Steel vs. 2014A Aluminum

AISI 440A stainless steel belongs to the iron alloys classification, while 2014A aluminum belongs to the aluminum alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 AISI 440A stainless steel and the bottom bar is 2014A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 5.0 to 20
6.2 to 16
Fatigue Strength, MPa 270 to 790
93 to 150
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Shear Strength, MPa 450 to 1040
130 to 290
Tensile Strength: Ultimate (UTS), MPa 730 to 1790
210 to 490
Tensile Strength: Yield (Proof), MPa 420 to 1650
110 to 430

Thermal Properties

Latent Heat of Fusion, J/g 280
400
Maximum Temperature: Mechanical, °C 760
210
Melting Completion (Liquidus), °C 1480
640
Melting Onset (Solidus), °C 1370
510
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 23
150
Thermal Expansion, µm/m-K 10
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
11
Density, g/cm3 7.7
3.0
Embodied Carbon, kg CO2/kg material 2.2
8.1
Embodied Energy, MJ/kg 31
150
Embodied Water, L/kg 120
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 120
24 to 49
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 26 to 65
19 to 45
Strength to Weight: Bending, points 23 to 43
26 to 46
Thermal Diffusivity, mm2/s 6.2
55
Thermal Shock Resistance, points 26 to 65
9.0 to 22

Alloy Composition

Aluminum (Al), % 0
90.8 to 95
Carbon (C), % 0.6 to 0.75
0
Chromium (Cr), % 16 to 18
0 to 0.1
Copper (Cu), % 0
3.9 to 5.0
Iron (Fe), % 78.4 to 83.4
0 to 0.5
Magnesium (Mg), % 0
0.2 to 0.8
Manganese (Mn), % 0 to 1.0
0.4 to 1.2
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.5 to 0.9
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15

Comparable Variants