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B443.0 Aluminum vs. ASTM A285 Carbon Steel

B443.0 aluminum belongs to the aluminum alloys classification, while ASTM A285 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 B443.0 aluminum and the bottom bar is ASTM A285 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 43
110 to 130
Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 4.9
30 to 34
Fatigue Strength, MPa 55
150 to 180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 110
250 to 290
Tensile Strength: Ultimate (UTS), MPa 150
380 to 450
Tensile Strength: Yield (Proof), MPa 50
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 620
1470
Melting Onset (Solidus), °C 600
1420 to 1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 150
53
Thermal Expansion, µm/m-K 22
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.0
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1130
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
110
Resilience: Unit (Modulus of Resilience), kJ/m3 18
94 to 150
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 15
13 to 16
Strength to Weight: Bending, points 23
15 to 17
Thermal Diffusivity, mm2/s 61
14
Thermal Shock Resistance, points 6.8
12 to 14