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EN 1.4886 Stainless Steel vs. EN AC-71100 Aluminum

EN 1.4886 stainless steel belongs to the iron alloys classification, while EN AC-71100 aluminum belongs to the aluminum alloys. There are 28 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 EN 1.4886 stainless steel and the bottom bar is EN AC-71100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
110
Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 45
1.1
Fatigue Strength, MPa 280
150
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 580
260
Tensile Strength: Yield (Proof), MPa 300
230

Thermal Properties

Latent Heat of Fusion, J/g 320
490
Maximum Temperature: Mechanical, °C 1100
170
Melting Completion (Liquidus), °C 1390
580
Melting Onset (Solidus), °C 1340
520
Specific Heat Capacity, J/kg-K 480
860
Thermal Expansion, µm/m-K 15
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 31
9.5
Density, g/cm3 8.0
2.9
Embodied Carbon, kg CO2/kg material 5.4
7.4
Embodied Energy, MJ/kg 76
140
Embodied Water, L/kg 190
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
2.8
Resilience: Unit (Modulus of Resilience), kJ/m3 230
360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
47
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 19
31
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 0
78.7 to 83.3
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 17 to 20
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 38.7 to 49
0 to 0.3
Magnesium (Mg), % 0
0.2 to 0.5
Manganese (Mn), % 0 to 2.0
0 to 0.15
Nickel (Ni), % 33 to 37
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.0 to 2.0
7.5 to 9.5
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
9.0 to 10.5
Residuals, % 0
0 to 0.15