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511.0 Aluminum vs. EN 1.4301 Stainless Steel

511.0 aluminum belongs to the aluminum alloys classification, while EN 1.4301 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 511.0 aluminum and the bottom bar is EN 1.4301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 50
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 3.0
14 to 46
Fatigue Strength, MPa 55
200 to 330
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
77
Shear Strength, MPa 120
430 to 550
Tensile Strength: Ultimate (UTS), MPa 150
610 to 900
Tensile Strength: Yield (Proof), MPa 83
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 170
940
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 590
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 140
15
Thermal Expansion, µm/m-K 24
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
15
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.8
3.0
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1180
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.7
110 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 51
120 to 820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
25
Strength to Weight: Axial, points 15
22 to 32
Strength to Weight: Bending, points 23
20 to 27
Thermal Diffusivity, mm2/s 59
4.0
Thermal Shock Resistance, points 6.5
14 to 20

Alloy Composition

Aluminum (Al), % 93.3 to 96.2
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
17.5 to 19.5
Copper (Cu), % 0 to 0.15
0
Iron (Fe), % 0 to 0.5
66.8 to 74.5
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0 to 0.35
0 to 2.0
Nickel (Ni), % 0
8.0 to 10.5
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.3 to 0.7
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0