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ASTM A266 Carbon Steel vs. 7010 Aluminum

ASTM A266 carbon steel belongs to the iron alloys classification, while 7010 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 ASTM A266 carbon steel and the bottom bar is 7010 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 21 to 26
3.9 to 6.8
Fatigue Strength, MPa 170 to 200
160 to 190
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 73
26
Shear Strength, MPa 320 to 380
300 to 340
Tensile Strength: Ultimate (UTS), MPa 500 to 600
520 to 590
Tensile Strength: Yield (Proof), MPa 230 to 290
410 to 540

Thermal Properties

Latent Heat of Fusion, J/g 250
380
Maximum Temperature: Mechanical, °C 400
200
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
480
Specific Heat Capacity, J/kg-K 470
860
Thermal Conductivity, W/m-K 51 to 52
150
Thermal Expansion, µm/m-K 12
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
40
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
120

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
10
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.4
8.3
Embodied Energy, MJ/kg 18 to 19
150
Embodied Water, L/kg 46 to 47
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
22 to 33
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
1230 to 2130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
45
Strength to Weight: Axial, points 18 to 21
47 to 54
Strength to Weight: Bending, points 18 to 20
47 to 52
Thermal Diffusivity, mm2/s 14
58
Thermal Shock Resistance, points 16 to 19
22 to 26