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6106 Aluminum vs. ASTM Grade HP Steel

6106 aluminum belongs to the aluminum alloys classification, while ASTM grade HP steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 6106 aluminum and the bottom bar is ASTM grade HP steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.1
5.1
Fatigue Strength, MPa 88
130
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
78
Tensile Strength: Ultimate (UTS), MPa 290
490
Tensile Strength: Yield (Proof), MPa 220
260

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 660
1370
Melting Onset (Solidus), °C 610
1330
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 190
12
Thermal Expansion, µm/m-K 23
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
34
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
5.8
Embodied Energy, MJ/kg 150
82
Embodied Water, L/kg 1190
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
21
Resilience: Unit (Modulus of Resilience), kJ/m3 370
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 29
17
Strength to Weight: Bending, points 35
17
Thermal Diffusivity, mm2/s 78
3.2
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 97.2 to 99.3
0
Carbon (C), % 0
0.35 to 0.75
Chromium (Cr), % 0 to 0.2
24 to 28
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 0 to 0.35
29.2 to 42.7
Magnesium (Mg), % 0.4 to 0.8
0
Manganese (Mn), % 0.050 to 0.2
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 2.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0