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EN AC-51500 Aluminum vs. EN 1.5638 Steel

EN AC-51500 aluminum belongs to the aluminum alloys classification, while EN 1.5638 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 EN AC-51500 aluminum and the bottom bar is EN 1.5638 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
170
Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 5.6
23
Fatigue Strength, MPa 120
290
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 280
580
Tensile Strength: Yield (Proof), MPa 160
410

Thermal Properties

Latent Heat of Fusion, J/g 430
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 630
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 910
470
Thermal Conductivity, W/m-K 120
52
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 88
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.0
Density, g/cm3 2.6
7.9
Embodied Carbon, kg CO2/kg material 9.0
1.7
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 1150
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 29
20
Strength to Weight: Bending, points 36
20
Thermal Diffusivity, mm2/s 49
14
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
0
Carbon (C), % 0
0.060 to 0.12
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.25
94.4 to 96.4
Magnesium (Mg), % 4.7 to 6.0
0
Manganese (Mn), % 0.4 to 0.8
0.5 to 0.8
Nickel (Ni), % 0
3.0 to 4.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 1.8 to 2.6
0 to 0.6
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.15
0