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4007 Aluminum vs. ASTM A285 Carbon Steel

4007 aluminum belongs to the aluminum alloys classification, while ASTM A285 carbon steel belongs to the iron alloys. 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 4007 aluminum and the bottom bar is ASTM A285 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 32 to 44
110 to 130
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 5.1 to 23
30 to 34
Fatigue Strength, MPa 46 to 88
150 to 180
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 80 to 90
250 to 290
Tensile Strength: Ultimate (UTS), MPa 130 to 160
380 to 450
Tensile Strength: Yield (Proof), MPa 50 to 120
190 to 230

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 650
1470
Melting Onset (Solidus), °C 590
1420 to 1430
Specific Heat Capacity, J/kg-K 890
470
Thermal Conductivity, W/m-K 170
53
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.8
Density, g/cm3 2.8
7.9
Embodied Carbon, kg CO2/kg material 8.1
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 1160
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.4 to 23
110
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 110
94 to 150
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
24
Strength to Weight: Axial, points 12 to 15
13 to 16
Strength to Weight: Bending, points 20 to 23
15 to 17
Thermal Diffusivity, mm2/s 67
14
Thermal Shock Resistance, points 5.5 to 6.7
12 to 14