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ASTM A266 Carbon Steel vs. 2095 Aluminum

ASTM A266 carbon steel belongs to the iron alloys classification, while 2095 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 2095 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 21 to 26
8.5
Fatigue Strength, MPa 170 to 200
200
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Shear Strength, MPa 320 to 380
410
Tensile Strength: Ultimate (UTS), MPa 500 to 600
700
Tensile Strength: Yield (Proof), MPa 230 to 290
610

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Maximum Temperature: Mechanical, °C 400
210
Melting Completion (Liquidus), °C 1460
660
Melting Onset (Solidus), °C 1420
540
Specific Heat Capacity, J/kg-K 470
910
Thermal Conductivity, W/m-K 51 to 52
130
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
35
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1 to 8.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
31
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.4
8.6
Embodied Energy, MJ/kg 18 to 19
160
Embodied Water, L/kg 46 to 47
1470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
57
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 230
2640
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 18 to 21
65
Strength to Weight: Bending, points 18 to 20
59
Thermal Diffusivity, mm2/s 14
49
Thermal Shock Resistance, points 16 to 19
31