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AISI 314 Stainless Steel vs. EN AC-51500 Aluminum

AISI 314 stainless steel belongs to the iron alloys classification, while EN AC-51500 aluminum belongs to the aluminum alloys. There are 30 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 AISI 314 stainless steel and the bottom bar is EN AC-51500 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
80
Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 45
5.6
Fatigue Strength, MPa 210
120
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 78
26
Tensile Strength: Ultimate (UTS), MPa 590
280
Tensile Strength: Yield (Proof), MPa 230
160

Thermal Properties

Latent Heat of Fusion, J/g 330
430
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1380
630
Melting Onset (Solidus), °C 1340
590
Specific Heat Capacity, J/kg-K 490
910
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 15
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
26
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
88

Otherwise Unclassified Properties

Base Metal Price, % relative 25
9.5
Density, g/cm3 7.7
2.6
Embodied Carbon, kg CO2/kg material 4.3
9.0
Embodied Energy, MJ/kg 62
150
Embodied Water, L/kg 190
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
13
Resilience: Unit (Modulus of Resilience), kJ/m3 130
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
52
Strength to Weight: Axial, points 21
29
Strength to Weight: Bending, points 20
36
Thermal Diffusivity, mm2/s 3.9
49
Thermal Shock Resistance, points 14
13

Alloy Composition

Aluminum (Al), % 0
89.8 to 93.1
Carbon (C), % 0 to 0.25
0
Chromium (Cr), % 23 to 26
0
Copper (Cu), % 0
0 to 0.050
Iron (Fe), % 46.7 to 56.5
0 to 0.25
Magnesium (Mg), % 0
4.7 to 6.0
Manganese (Mn), % 0 to 2.0
0.4 to 0.8
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 1.5 to 3.0
1.8 to 2.6
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.15