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EN AC-45000 Aluminum vs. SAE-AISI 51B60 Steel

EN AC-45000 aluminum belongs to the aluminum alloys classification, while SAE-AISI 51B60 steel belongs to the iron alloys. There are 30 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 EN AC-45000 aluminum and the bottom bar is SAE-AISI 51B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 77
200
Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.1
12 to 21
Fatigue Strength, MPa 75
280 to 340
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
73
Tensile Strength: Ultimate (UTS), MPa 180
660
Tensile Strength: Yield (Proof), MPa 110
400 to 550

Thermal Properties

Latent Heat of Fusion, J/g 470
250
Maximum Temperature: Mechanical, °C 180
420
Melting Completion (Liquidus), °C 640
1450
Melting Onset (Solidus), °C 520
1410
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 120
43
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 81
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.1
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 7.7
1.4
Embodied Energy, MJ/kg 140
19
Embodied Water, L/kg 1070
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.7
73 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 80
420 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 47
12
Thermal Shock Resistance, points 8.0
19

Alloy Composition

Aluminum (Al), % 82.2 to 91.8
0
Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0
0.56 to 0.64
Chromium (Cr), % 0 to 0.15
0.7 to 0.9
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 0 to 1.0
97 to 97.8
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0 to 0.55
0
Manganese (Mn), % 0.2 to 0.65
0.75 to 1.0
Nickel (Ni), % 0 to 0.45
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 5.0 to 7.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.15
0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 2.0
0
Residuals, % 0 to 0.35
0