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5049 Aluminum vs. Ductile Cast Iron

5049 aluminum belongs to the aluminum alloys classification, while ductile cast iron belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 5049 aluminum and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 52 to 88
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 69
170 to 180
Elongation at Break, % 2.0 to 18
2.1 to 20
Poisson's Ratio 0.33
0.28 to 0.31
Shear Modulus, GPa 26
64 to 70
Shear Strength, MPa 130 to 190
420 to 800
Tensile Strength: Ultimate (UTS), MPa 210 to 330
460 to 920
Tensile Strength: Yield (Proof), MPa 91 to 280
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 190
290
Melting Completion (Liquidus), °C 650
1160
Melting Onset (Solidus), °C 620
1120
Specific Heat Capacity, J/kg-K 900
490
Thermal Conductivity, W/m-K 140
31 to 36
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.7
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 8.5
1.5
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1180
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 31
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 59 to 570
280 to 1330
Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 50
24 to 26
Strength to Weight: Axial, points 22 to 34
17 to 35
Strength to Weight: Bending, points 29 to 39
18 to 29
Thermal Diffusivity, mm2/s 56
8.9 to 10
Thermal Shock Resistance, points 9.3 to 15
17 to 35

Alloy Composition

Aluminum (Al), % 94.7 to 97.9
0
Carbon (C), % 0
3.0 to 3.5
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
93.7 to 95.5
Magnesium (Mg), % 1.6 to 2.5
0
Manganese (Mn), % 0.5 to 1.1
0
Phosphorus (P), % 0
0 to 0.080
Silicon (Si), % 0 to 0.4
1.5 to 2.8
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0

Comparable Variants