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1200 Aluminum vs. SAE-AISI 5147 Steel

1200 aluminum belongs to the aluminum alloys classification, while SAE-AISI 5147 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 1200 aluminum and the bottom bar is SAE-AISI 5147 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 23 to 48
180
Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 1.1 to 28
20
Fatigue Strength, MPa 25 to 69
250
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Shear Strength, MPa 54 to 100
370
Tensile Strength: Ultimate (UTS), MPa 85 to 180
600
Tensile Strength: Yield (Proof), MPa 28 to 160
360

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 170
420
Melting Completion (Liquidus), °C 660
1450
Melting Onset (Solidus), °C 650
1410
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 230
46
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 190
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.2
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.2
1.5
Embodied Energy, MJ/kg 150
19
Embodied Water, L/kg 1190
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.0 to 19
110
Resilience: Unit (Modulus of Resilience), kJ/m3 5.7 to 180
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 8.7 to 19
21
Strength to Weight: Bending, points 16 to 26
20
Thermal Diffusivity, mm2/s 92
12
Thermal Shock Resistance, points 3.8 to 8.1
18

Alloy Composition

Aluminum (Al), % 99 to 100
0
Carbon (C), % 0
0.46 to 0.51
Chromium (Cr), % 0
0.85 to 1.2
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 1.0
97 to 97.8
Manganese (Mn), % 0 to 0.050
0.7 to 1.0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0