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Grade 24 Titanium vs. Ductile Cast Iron

Grade 24 titanium belongs to the titanium alloys classification, while ductile cast iron belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 24 titanium and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
170 to 180
Elongation at Break, % 11
2.1 to 20
Poisson's Ratio 0.32
0.28 to 0.31
Shear Modulus, GPa 40
64 to 70
Shear Strength, MPa 610
420 to 800
Tensile Strength: Ultimate (UTS), MPa 1010
460 to 920
Tensile Strength: Yield (Proof), MPa 940
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 340
290
Melting Completion (Liquidus), °C 1610
1160
Melting Onset (Solidus), °C 1560
1120
Specific Heat Capacity, J/kg-K 560
490
Thermal Conductivity, W/m-K 7.1
31 to 36
Thermal Expansion, µm/m-K 9.6
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.8 to 9.4

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 43
1.5
Embodied Energy, MJ/kg 710
21
Embodied Water, L/kg 310
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 4160
280 to 1330
Stiffness to Weight: Axial, points 13
12 to 14
Stiffness to Weight: Bending, points 35
24 to 26
Strength to Weight: Axial, points 63
17 to 35
Strength to Weight: Bending, points 50
18 to 29
Thermal Diffusivity, mm2/s 2.9
8.9 to 10
Thermal Shock Resistance, points 72
17 to 35

Alloy Composition


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Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.080
3.0 to 3.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
93.7 to 95.5
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.080
Silicon (Si), % 0
1.5 to 2.8
Titanium (Ti), % 87.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0