MakeItFrom.com
Menu (ESC)

SAE-AISI 8640 Steel vs. 296.0 Aluminum

SAE-AISI 8640 steel belongs to the iron alloys classification, while 296.0 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 SAE-AISI 8640 steel and the bottom bar is 296.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
75 to 90
Elastic (Young's, Tensile) Modulus, GPa 190
72
Elongation at Break, % 23
3.2 to 7.1
Fatigue Strength, MPa 270
47 to 70
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 570
260 to 270
Tensile Strength: Yield (Proof), MPa 380
120 to 180

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1420
540
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 39
130 to 150
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
33 to 37
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
99 to 110

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.5
7.8
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 50
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
7.6 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 380
110 to 220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 20
24 to 25
Strength to Weight: Bending, points 20
30 to 31
Thermal Diffusivity, mm2/s 10
51 to 56
Thermal Shock Resistance, points 17
12

Alloy Composition

Aluminum (Al), % 0
89 to 94
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
4.0 to 5.0
Iron (Fe), % 96.6 to 97.8
0 to 1.2
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0.75 to 1.0
0 to 0.35
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.4 to 0.7
0 to 0.35
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
2.0 to 3.0
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.35