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1050 Aluminum vs. AISI 440C Stainless Steel

1050 aluminum belongs to the aluminum alloys classification, while AISI 440C stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
200
Elongation at Break, % 4.6 to 37
2.0 to 14
Fatigue Strength, MPa 31 to 57
260 to 840
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
76
Shear Strength, MPa 52 to 81
430 to 1120
Tensile Strength: Ultimate (UTS), MPa 76 to 140
710 to 1970
Tensile Strength: Yield (Proof), MPa 25 to 120
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Maximum Temperature: Mechanical, °C 170
870
Melting Completion (Liquidus), °C 640
1480
Melting Onset (Solidus), °C 650
1370
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 230
22
Thermal Expansion, µm/m-K 24
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 61
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 200
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.3
2.2
Embodied Energy, MJ/kg 160
31
Embodied Water, L/kg 1200
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.4 to 22
39 to 88
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 7.8 to 14
26 to 71
Strength to Weight: Bending, points 15 to 22
23 to 46
Thermal Diffusivity, mm2/s 94
6.0
Thermal Shock Resistance, points 3.4 to 6.2
26 to 71

Alloy Composition

Aluminum (Al), % 99.5 to 100
0
Carbon (C), % 0
1.0 to 1.2
Chromium (Cr), % 0
16 to 18
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.4
78 to 83.1
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.050
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.75
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0

Comparable Variants