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6463 Aluminum vs. ASTM A387 Grade 22 Steel

6463 aluminum belongs to the aluminum alloys classification, while ASTM A387 grade 22 steel belongs to the iron alloys. There are 31 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 6463 aluminum and the bottom bar is ASTM A387 grade 22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 42 to 74
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 9.0 to 17
21
Fatigue Strength, MPa 45 to 76
160 to 240
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
74
Shear Strength, MPa 86 to 150
300 to 380
Tensile Strength: Ultimate (UTS), MPa 140 to 230
480 to 600
Tensile Strength: Yield (Proof), MPa 82 to 200
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Maximum Temperature: Mechanical, °C 160
460
Melting Completion (Liquidus), °C 660
1470
Melting Onset (Solidus), °C 620
1430
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 190 to 210
40
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 50 to 55
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 170 to 180
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.8
Density, g/cm3 2.7
7.9
Embodied Carbon, kg CO2/kg material 8.3
1.7
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 1190
58

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 25
85 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 300
140 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 14 to 24
17 to 21
Strength to Weight: Bending, points 22 to 31
17 to 20
Thermal Diffusivity, mm2/s 79 to 86
11
Thermal Shock Resistance, points 6.3 to 10
14 to 17

Alloy Composition

Aluminum (Al), % 97.9 to 99.4
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.15
95.1 to 96.8
Magnesium (Mg), % 0.45 to 0.9
0
Manganese (Mn), % 0 to 0.050
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.2 to 0.6
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0 to 0.050
0
Residuals, % 0 to 0.15
0