MakeItFrom.com
Menu (ESC)

8090 Aluminum vs. ACI-ASTM CN7M Steel

8090 aluminum belongs to the aluminum alloys classification, while ACI-ASTM CN7M steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 8090 aluminum and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
200
Elongation at Break, % 3.5 to 13
44
Fatigue Strength, MPa 91 to 140
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 25
77
Tensile Strength: Ultimate (UTS), MPa 340 to 490
480
Tensile Strength: Yield (Proof), MPa 210 to 420
200

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 190
1100
Melting Completion (Liquidus), °C 660
1410
Melting Onset (Solidus), °C 600
1450
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 95 to 160
21
Thermal Expansion, µm/m-K 24
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 66
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 18
32
Density, g/cm3 2.7
8.1
Embodied Carbon, kg CO2/kg material 8.6
5.6
Embodied Energy, MJ/kg 170
78
Embodied Water, L/kg 1160
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 41
170
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1330
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 34 to 49
17
Strength to Weight: Bending, points 39 to 50
17
Thermal Diffusivity, mm2/s 36 to 60
5.6
Thermal Shock Resistance, points 15 to 22
12

Alloy Composition


Deprecated: Automatic conversion of false to array is deprecated in /home/public/compare.php on line 452
Aluminum (Al), % 93 to 98.4
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.1
19 to 22
Copper (Cu), % 1.0 to 1.6
3.0 to 4.0
Iron (Fe), % 0 to 0.3
37.4 to 48.5
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.2
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0 to 0.15
0