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6463 Aluminum vs. SAE-AISI 52100 Steel

6463 aluminum belongs to the aluminum alloys classification, while SAE-AISI 52100 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 6463 aluminum and the bottom bar is SAE-AISI 52100 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 42 to 74
180 to 210
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 9.0 to 17
10 to 20
Fatigue Strength, MPa 45 to 76
250 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
72
Shear Strength, MPa 86 to 150
370 to 420
Tensile Strength: Ultimate (UTS), MPa 140 to 230
590 to 2010
Tensile Strength: Yield (Proof), MPa 82 to 200
360 to 560

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 160
430
Melting Completion (Liquidus), °C 660
1450
Melting Onset (Solidus), °C 620
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 190 to 210
47
Thermal Expansion, µm/m-K 23
12 to 13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 55
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 170 to 180
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.4
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1190
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
54 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 300
350 to 840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 14 to 24
21 to 72
Strength to Weight: Bending, points 22 to 31
20 to 45
Thermal Diffusivity, mm2/s 79 to 86
13
Thermal Shock Resistance, points 6.3 to 10
19 to 61

Alloy Composition

Aluminum (Al), % 97.9 to 99.4
0
Carbon (C), % 0
0.93 to 1.1
Chromium (Cr), % 0
1.4 to 1.6
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.15
96.5 to 97.3
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.050
0.25 to 0.45
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.2 to 0.6
0.15 to 0.35
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.050
0
Residuals, % 0 to 0.15
0