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EN AC-51300 Aluminum vs. N08031 Stainless Steel

EN AC-51300 aluminum belongs to the aluminum alloys classification, while N08031 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 EN AC-51300 aluminum and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
210
Elongation at Break, % 3.7
45
Fatigue Strength, MPa 78
290
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
81
Tensile Strength: Ultimate (UTS), MPa 190
730
Tensile Strength: Yield (Proof), MPa 110
310

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 600
1390
Specific Heat Capacity, J/kg-K 910
460
Thermal Conductivity, W/m-K 110
12
Thermal Expansion, µm/m-K 24
18

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
39
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 9.1
7.1
Embodied Energy, MJ/kg 150
96
Embodied Water, L/kg 1180
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
270
Resilience: Unit (Modulus of Resilience), kJ/m3 87
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 28
22
Thermal Diffusivity, mm2/s 45
3.1
Thermal Shock Resistance, points 8.6
14

Alloy Composition

Aluminum (Al), % 91.4 to 95.5
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0
26 to 28
Copper (Cu), % 0 to 0.1
1.0 to 1.4
Iron (Fe), % 0 to 0.55
29 to 36.9
Magnesium (Mg), % 4.5 to 6.5
0
Manganese (Mn), % 0 to 0.45
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.55
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0