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4015 Aluminum vs. ASTM A266 Carbon Steel

4015 aluminum belongs to the aluminum alloys classification, while ASTM A266 carbon steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 4015 aluminum and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 35 to 70
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 1.1 to 23
21 to 26
Fatigue Strength, MPa 46 to 71
170 to 200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 82 to 120
320 to 380
Tensile Strength: Ultimate (UTS), MPa 130 to 220
500 to 600
Tensile Strength: Yield (Proof), MPa 50 to 200
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 160
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 160
51 to 52
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 150
18 to 19
Embodied Water, L/kg 1160
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4 to 24
110
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 290
140 to 230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 13 to 22
18 to 21
Strength to Weight: Bending, points 21 to 30
18 to 20
Thermal Diffusivity, mm2/s 66
14
Thermal Shock Resistance, points 5.7 to 9.7
16 to 19