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Grade 38 Titanium vs. Grade 24 Titanium

Both grade 38 titanium and grade 24 titanium are titanium alloys. Both are furnished in the annealed condition. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 38 titanium and the bottom bar is grade 24 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 11
11
Fatigue Strength, MPa 530
550
Poisson's Ratio 0.32
0.32
Reduction in Area, % 29
28
Shear Modulus, GPa 40
40
Shear Strength, MPa 600
610
Tensile Strength: Ultimate (UTS), MPa 1000
1010
Tensile Strength: Yield (Proof), MPa 910
940

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 330
340
Melting Completion (Liquidus), °C 1620
1610
Melting Onset (Solidus), °C 1570
1560
Specific Heat Capacity, J/kg-K 550
560
Thermal Conductivity, W/m-K 8.0
7.1
Thermal Expansion, µm/m-K 9.3
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.0

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 35
43
Embodied Energy, MJ/kg 560
710
Embodied Water, L/kg 160
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3840
4160
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 62
63
Strength to Weight: Bending, points 49
50
Thermal Diffusivity, mm2/s 3.2
2.9
Thermal Shock Resistance, points 72
72

Alloy Composition

Aluminum (Al), % 3.5 to 4.5
5.5 to 6.8
Carbon (C), % 0 to 0.080
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 1.2 to 1.8
0 to 0.4
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0.2 to 0.3
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Titanium (Ti), % 89.9 to 93.1
87.5 to 91
Vanadium (V), % 2.0 to 3.0
3.5 to 4.5
Residuals, % 0 to 0.4
0 to 0.4