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EN AC-47000 Aluminum vs. SAE-AISI D4 Steel

EN AC-47000 aluminum belongs to the aluminum alloys classification, while SAE-AISI D4 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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-47000 aluminum and the bottom bar is SAE-AISI D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
190
Elongation at Break, % 1.7
8.4 to 15
Fatigue Strength, MPa 68
310 to 920
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
74
Tensile Strength: Ultimate (UTS), MPa 180
760 to 2060
Tensile Strength: Yield (Proof), MPa 97
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 570
270
Melting Completion (Liquidus), °C 590
1430
Melting Onset (Solidus), °C 570
1380
Specific Heat Capacity, J/kg-K 900
480
Thermal Conductivity, W/m-K 130
31
Thermal Expansion, µm/m-K 21
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
5.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
8.0
Density, g/cm3 2.6
7.7
Embodied Carbon, kg CO2/kg material 7.7
3.3
Embodied Energy, MJ/kg 140
49
Embodied Water, L/kg 1040
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.5
100 to 160
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 54
25
Strength to Weight: Axial, points 19
27 to 75
Strength to Weight: Bending, points 27
24 to 47
Thermal Diffusivity, mm2/s 55
8.3
Thermal Shock Resistance, points 8.3
23 to 63

Alloy Composition

Aluminum (Al), % 82.1 to 89.5
0
Carbon (C), % 0
2.1 to 2.4
Chromium (Cr), % 0 to 0.1
11 to 13
Copper (Cu), % 0 to 1.0
0 to 0.25
Iron (Fe), % 0 to 0.8
80.6 to 86.3
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0.050 to 0.55
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 13.5
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0 to 1.0
Zinc (Zn), % 0 to 0.55
0
Residuals, % 0 to 0.25
0