MakeItFrom.com
Menu (ESC)

B535.0 Aluminum vs. SAE-AISI 8645 Steel

B535.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 8645 steel belongs to the iron alloys. 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 B535.0 aluminum and the bottom bar is SAE-AISI 8645 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 66
190
Elongation at Break, % 10
12 to 23
Fatigue Strength, MPa 62
280 to 350
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 25
73
Shear Strength, MPa 210
380 to 400
Tensile Strength: Ultimate (UTS), MPa 260
600 to 670
Tensile Strength: Yield (Proof), MPa 130
390 to 560

Thermal Properties

Latent Heat of Fusion, J/g 390
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 96
39
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 82
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.6
Density, g/cm3 2.6
7.8
Embodied Carbon, kg CO2/kg material 9.4
1.5
Embodied Energy, MJ/kg 160
20
Embodied Water, L/kg 1180
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
77 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 130
420 to 840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 28
21 to 24
Strength to Weight: Bending, points 35
20 to 22
Thermal Diffusivity, mm2/s 40
10
Thermal Shock Resistance, points 11
18 to 20

Alloy Composition

Aluminum (Al), % 91.7 to 93.4
0
Carbon (C), % 0
0.43 to 0.48
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.15
96.5 to 97.7
Magnesium (Mg), % 6.5 to 7.5
0
Manganese (Mn), % 0 to 0.050
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.15
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0.1 to 0.25
0
Residuals, % 0 to 0.15
0