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C443.0 Aluminum vs. SAE-AISI 8627 Steel

C443.0 aluminum belongs to the aluminum alloys classification, while SAE-AISI 8627 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 C443.0 aluminum and the bottom bar is SAE-AISI 8627 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 65
150
Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 9.0
23
Fatigue Strength, MPa 120
230
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Shear Strength, MPa 130
320
Tensile Strength: Ultimate (UTS), MPa 230
500
Tensile Strength: Yield (Proof), MPa 100
330

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 600
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 140
38
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.6
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.9
1.5
Embodied Energy, MJ/kg 150
20
Embodied Water, L/kg 1120
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
100
Resilience: Unit (Modulus of Resilience), kJ/m3 70
280
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 51
24
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 31
18
Thermal Diffusivity, mm2/s 58
10
Thermal Shock Resistance, points 10
17

Alloy Composition

Aluminum (Al), % 89.6 to 95.5
0
Carbon (C), % 0
0.25 to 0.3
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 0 to 2.0
96.8 to 98
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.35
0.7 to 0.9
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0 to 0.5
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 4.5 to 6.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.25
0