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1050 Aluminum vs. AISI 205 Stainless Steel

1050 aluminum belongs to the aluminum alloys classification, while AISI 205 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, 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 AISI 205 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 4.6 to 37
11 to 51
Fatigue Strength, MPa 31 to 57
410 to 640
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 52 to 81
560 to 850
Tensile Strength: Ultimate (UTS), MPa 76 to 140
800 to 1430
Tensile Strength: Yield (Proof), MPa 25 to 120
450 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 170
880
Melting Completion (Liquidus), °C 640
1380
Melting Onset (Solidus), °C 650
1340
Specific Heat Capacity, J/kg-K 900
480
Thermal Expansion, µm/m-K 24
18

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
7.6
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 160
37
Embodied Water, L/kg 1200
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
150 to 430
Resilience: Unit (Modulus of Resilience), kJ/m3 4.6 to 110
510 to 3060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
26
Strength to Weight: Axial, points 7.8 to 14
29 to 52
Strength to Weight: Bending, points 15 to 22
25 to 37
Thermal Shock Resistance, points 3.4 to 6.2
16 to 29

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
0.12 to 0.25
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.4
62.6 to 68.1
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
14 to 15.5
Nickel (Ni), % 0
1.0 to 1.7
Nitrogen (N), % 0
0.32 to 0.4
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0

Comparable Variants