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EN 1.4935 Stainless Steel vs. EN AC-71100 Aluminum

EN 1.4935 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 (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 1.4935 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, % 16 to 18
1.1
Fatigue Strength, MPa 350 to 400
150
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 780 to 880
260
Tensile Strength: Yield (Proof), MPa 570 to 670
230

Thermal Properties

Latent Heat of Fusion, J/g 270
490
Maximum Temperature: Mechanical, °C 740
170
Melting Completion (Liquidus), °C 1460
580
Melting Onset (Solidus), °C 1420
520
Specific Heat Capacity, J/kg-K 470
860
Thermal Expansion, µm/m-K 11
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
32
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
97

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 2.9
7.4
Embodied Energy, MJ/kg 42
140
Embodied Water, L/kg 100
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
2.8
Resilience: Unit (Modulus of Resilience), kJ/m3 830 to 1160
360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 28 to 31
25
Strength to Weight: Bending, points 24 to 26
31
Thermal Shock Resistance, points 27 to 30
12

Alloy Composition

Aluminum (Al), % 0
78.7 to 83.3
Carbon (C), % 0.17 to 0.24
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 83 to 86.7
0 to 0.3
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0.3 to 0.8
0 to 0.15
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.5
7.5 to 9.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.15
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0.2 to 0.35
0
Zinc (Zn), % 0
9.0 to 10.5
Residuals, % 0
0 to 0.15