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EN AC-47000 Aluminum vs. SAE-AISI M34 Steel

EN AC-47000 aluminum belongs to the aluminum alloys classification, while SAE-AISI M34 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 M34 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
77
Tensile Strength: Ultimate (UTS), MPa 180
800 to 2170

Thermal Properties

Latent Heat of Fusion, J/g 570
270
Melting Completion (Liquidus), °C 590
1540
Melting Onset (Solidus), °C 570
1500
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 130
24
Thermal Expansion, µm/m-K 21
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
32
Density, g/cm3 2.6
8.2
Embodied Carbon, kg CO2/kg material 7.7
9.5
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 1040
150

Common Calculations

Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 54
24
Strength to Weight: Axial, points 19
27 to 74
Strength to Weight: Bending, points 27
23 to 46
Thermal Diffusivity, mm2/s 55
6.7
Thermal Shock Resistance, points 8.3
25 to 67

Alloy Composition

Aluminum (Al), % 82.1 to 89.5
0
Carbon (C), % 0
0.85 to 0.92
Chromium (Cr), % 0 to 0.1
3.5 to 4.0
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0 to 1.0
0 to 0.25
Iron (Fe), % 0 to 0.8
71.3 to 76.5
Lead (Pb), % 0 to 0.2
0
Magnesium (Mg), % 0 to 0.35
0
Manganese (Mn), % 0.050 to 0.55
0.15 to 0.4
Molybdenum (Mo), % 0
7.8 to 9.2
Nickel (Ni), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 10.5 to 13.5
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.9 to 2.3
Zinc (Zn), % 0 to 0.55
0
Residuals, % 0 to 0.25
0