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2014A Aluminum vs. AISI 312 Stainless Steel

2014A aluminum belongs to the aluminum alloys classification, while AISI 312 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, 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 2014A aluminum and the bottom bar is AISI 312 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 6.2 to 16
28
Fatigue Strength, MPa 93 to 150
370
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 27
80
Shear Strength, MPa 130 to 290
510
Tensile Strength: Ultimate (UTS), MPa 210 to 490
780
Tensile Strength: Yield (Proof), MPa 110 to 430
510

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 210
1100
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 510
1390
Specific Heat Capacity, J/kg-K 870
480
Thermal Conductivity, W/m-K 150
16
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 11
17
Density, g/cm3 3.0
7.7
Embodied Carbon, kg CO2/kg material 8.1
3.4
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1140
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 49
190
Resilience: Unit (Modulus of Resilience), kJ/m3 85 to 1300
640
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 19 to 45
28
Strength to Weight: Bending, points 26 to 46
24
Thermal Diffusivity, mm2/s 55
4.3
Thermal Shock Resistance, points 9.0 to 22
21

Alloy Composition

Aluminum (Al), % 90.8 to 95
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
24 to 26
Copper (Cu), % 3.9 to 5.0
0
Iron (Fe), % 0 to 0.5
62.2 to 69.2
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.4 to 1.2
0 to 2.0
Molybdenum (Mo), % 0
1.2 to 2.0
Nickel (Ni), % 0 to 0.1
5.5 to 6.5
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.5 to 0.9
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0