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1050 Aluminum vs. EN 1.4469 Stainless Steel

1050 aluminum belongs to the aluminum alloys classification, while EN 1.4469 stainless steel belongs to the iron alloys. There are 29 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 1050 aluminum and the bottom bar is EN 1.4469 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
210
Elongation at Break, % 4.6 to 37
25
Fatigue Strength, MPa 31 to 57
380
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
81
Tensile Strength: Ultimate (UTS), MPa 76 to 140
740
Tensile Strength: Yield (Proof), MPa 25 to 120
550

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 650
1400
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 230
17
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
21
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
4.1
Embodied Energy, MJ/kg 160
57
Embodied Water, L/kg 1200
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
170
Resilience: Unit (Modulus of Resilience), kJ/m3 4.6 to 110
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 7.8 to 14
26
Strength to Weight: Bending, points 15 to 22
23
Thermal Diffusivity, mm2/s 94
4.6
Thermal Shock Resistance, points 3.4 to 6.2
20

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
25 to 27
Copper (Cu), % 0 to 0.050
0 to 1.3
Iron (Fe), % 0 to 0.4
56.4 to 65.9
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0