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SAE-AISI 1008 Steel vs. 201.0 Aluminum

SAE-AISI 1008 steel belongs to the iron alloys classification, while 201.0 aluminum belongs to the aluminum alloys. There are 30 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 SAE-AISI 1008 steel and the bottom bar is 201.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 93 to 100
95 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 22 to 33
4.4 to 20
Fatigue Strength, MPa 150 to 220
120 to 150
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Shear Strength, MPa 220 to 230
290
Tensile Strength: Ultimate (UTS), MPa 330 to 370
370 to 470
Tensile Strength: Yield (Proof), MPa 190 to 310
220 to 400

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 400
170
Melting Completion (Liquidus), °C 1470
650
Melting Onset (Solidus), °C 1430
570
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 62
120
Thermal Expansion, µm/m-K 12
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
30 to 33
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
87 to 97

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
38
Density, g/cm3 7.9
3.1
Embodied Carbon, kg CO2/kg material 1.4
8.7
Embodied Energy, MJ/kg 18
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 91
19 to 63
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 260
330 to 1160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 12 to 13
33 to 42
Strength to Weight: Bending, points 13 to 15
37 to 44
Thermal Diffusivity, mm2/s 17
45
Thermal Shock Resistance, points 10 to 12
19 to 25

Alloy Composition

Aluminum (Al), % 0
92.1 to 95.1
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
4.0 to 5.2
Iron (Fe), % 99.31 to 99.7
0 to 0.15
Magnesium (Mg), % 0
0.15 to 0.55
Manganese (Mn), % 0.3 to 0.5
0.2 to 0.5
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 0
0.4 to 1.0
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
0.15 to 0.35
Residuals, % 0
0 to 0.1