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N08800 Stainless Steel vs. EN AC-71100 Aluminum

N08800 stainless steel belongs to the iron alloys classification, while EN AC-71100 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 N08800 stainless steel and the bottom bar is EN AC-71100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 4.5 to 34
1.1
Fatigue Strength, MPa 150 to 390
150
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 500 to 1000
260
Tensile Strength: Yield (Proof), MPa 190 to 830
230

Thermal Properties

Latent Heat of Fusion, J/g 300
490
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1390
580
Melting Onset (Solidus), °C 1360
520
Specific Heat Capacity, J/kg-K 480
860
Thermal Expansion, µm/m-K 14
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
32
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
97

Otherwise Unclassified Properties

Base Metal Price, % relative 30
9.5
Density, g/cm3 8.0
2.9
Embodied Carbon, kg CO2/kg material 5.3
7.4
Embodied Energy, MJ/kg 76
140
Embodied Water, L/kg 200
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 160
2.8
Resilience: Unit (Modulus of Resilience), kJ/m3 96 to 1740
360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 18 to 35
25
Strength to Weight: Bending, points 18 to 28
31
Thermal Shock Resistance, points 13 to 25
12

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
78.7 to 83.3
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 19 to 23
0
Copper (Cu), % 0 to 0.75
0 to 0.1
Iron (Fe), % 39.5 to 50.7
0 to 0.3
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0 to 1.5
0 to 0.15
Nickel (Ni), % 30 to 35
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
7.5 to 9.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0.15 to 0.6
0 to 0.15
Zinc (Zn), % 0
9.0 to 10.5
Residuals, % 0
0 to 0.15