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6008 Aluminum vs. ASTM Grade HD Steel

6008 aluminum belongs to the aluminum alloys classification, while ASTM grade HD steel belongs to the iron alloys. There are 29 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 6008 aluminum and the bottom bar is ASTM grade HD steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.1 to 17
9.1
Fatigue Strength, MPa 55 to 88
140
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 26
80
Tensile Strength: Ultimate (UTS), MPa 200 to 290
590
Tensile Strength: Yield (Proof), MPa 100 to 220
270

Thermal Properties

Latent Heat of Fusion, J/g 410
310
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 640
1410
Melting Onset (Solidus), °C 620
1370
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 190
16
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 160
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 2.7
7.7
Embodied Carbon, kg CO2/kg material 8.5
3.1
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 1180
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 28
44
Resilience: Unit (Modulus of Resilience), kJ/m3 76 to 360
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 50
26
Strength to Weight: Axial, points 21 to 29
21
Strength to Weight: Bending, points 28 to 35
20
Thermal Diffusivity, mm2/s 77
4.3
Thermal Shock Resistance, points 9.0 to 13
19

Alloy Composition

Aluminum (Al), % 96.5 to 99.1
0
Carbon (C), % 0
0 to 0.5
Chromium (Cr), % 0 to 0.3
26 to 30
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 0 to 0.35
58.4 to 70
Magnesium (Mg), % 0.4 to 0.7
0
Manganese (Mn), % 0 to 0.3
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
4.0 to 7.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 0.9
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.1
0
Vanadium (V), % 0.050 to 0.2
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0