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201.0 Aluminum vs. ASTM A266 Carbon Steel

201.0 aluminum belongs to the aluminum alloys classification, while ASTM A266 carbon steel belongs to the iron 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 201.0 aluminum and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 140
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.4 to 20
21 to 26
Fatigue Strength, MPa 120 to 150
170 to 200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 290
320 to 380
Tensile Strength: Ultimate (UTS), MPa 370 to 470
500 to 600
Tensile Strength: Yield (Proof), MPa 220 to 400
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 120
51 to 52
Thermal Expansion, µm/m-K 19
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30 to 33
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 97
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 38
1.8
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.7
1.4
Embodied Energy, MJ/kg 160
18 to 19

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 63
110
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 1160
140 to 230
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
24
Strength to Weight: Axial, points 33 to 42
18 to 21
Strength to Weight: Bending, points 37 to 44
18 to 20
Thermal Diffusivity, mm2/s 45
14
Thermal Shock Resistance, points 19 to 25
16 to 19