MakeItFrom.com
Menu (ESC)

2007 Aluminum vs. ASTM A387 Grade 9 Steel

2007 aluminum belongs to the aluminum alloys classification, while ASTM A387 grade 9 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 2007 aluminum and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 5.6 to 8.0
20 to 21
Fatigue Strength, MPa 91 to 110
160 to 240
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
75
Shear Strength, MPa 220 to 250
310 to 380
Tensile Strength: Ultimate (UTS), MPa 370 to 420
500 to 600
Tensile Strength: Yield (Proof), MPa 240 to 270
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 190
600
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 510
1410
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 130
26
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
10

Otherwise Unclassified Properties

Base Metal Price, % relative 11
6.5
Density, g/cm3 3.1
7.8
Embodied Carbon, kg CO2/kg material 8.0
2.1
Embodied Energy, MJ/kg 150
28
Embodied Water, L/kg 1130
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 530
140 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 44
25
Strength to Weight: Axial, points 33 to 38
18 to 21
Strength to Weight: Bending, points 37 to 40
18 to 20
Thermal Diffusivity, mm2/s 48
6.9
Thermal Shock Resistance, points 16 to 19
14 to 17

Alloy Composition

Aluminum (Al), % 87.5 to 95
0
Bismuth (Bi), % 0 to 0.2
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.1
8.0 to 10
Copper (Cu), % 3.3 to 4.6
0
Iron (Fe), % 0 to 0.8
87.1 to 90.8
Lead (Pb), % 0.8 to 1.5
0
Magnesium (Mg), % 0.4 to 1.8
0
Manganese (Mn), % 0.5 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.8
0
Residuals, % 0 to 0.3
0