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1050 Aluminum vs. N08020 Stainless Steel

1050 aluminum belongs to the aluminum alloys classification, while N08020 stainless steel belongs to the iron alloys. There are 30 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 1050 aluminum and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 4.6 to 37
15 to 34
Fatigue Strength, MPa 31 to 57
210 to 240
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
77
Shear Strength, MPa 52 to 81
380 to 410
Tensile Strength: Ultimate (UTS), MPa 76 to 140
610 to 620
Tensile Strength: Yield (Proof), MPa 25 to 120
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 650
1360
Specific Heat Capacity, J/kg-K 900
460
Thermal Conductivity, W/m-K 230
12
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 200
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
38
Density, g/cm3 2.7
8.2
Embodied Carbon, kg CO2/kg material 8.3
6.6
Embodied Energy, MJ/kg 160
92
Embodied Water, L/kg 1200
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
83 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 4.6 to 110
180 to 440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 7.8 to 14
21
Strength to Weight: Bending, points 15 to 22
20
Thermal Diffusivity, mm2/s 94
3.2
Thermal Shock Resistance, points 3.4 to 6.2
15

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0 to 0.050
3.0 to 4.0
Iron (Fe), % 0 to 0.4
29.9 to 44
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
32 to 38
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.035
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0

Comparable Variants