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Grade 16 Titanium vs. Grade 38 Titanium

Both grade 16 titanium and grade 38 titanium are titanium alloys. Both are furnished in the annealed condition. They have a moderately high 92% 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 16 titanium and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 23
11
Fatigue Strength, MPa 240
530
Poisson's Ratio 0.32
0.32
Reduction in Area, % 34
29
Shear Modulus, GPa 38
40
Shear Strength, MPa 250
600
Tensile Strength: Ultimate (UTS), MPa 400
1000
Tensile Strength: Yield (Proof), MPa 340
910

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
330
Melting Completion (Liquidus), °C 1660
1620
Melting Onset (Solidus), °C 1610
1570
Specific Heat Capacity, J/kg-K 540
550
Thermal Conductivity, W/m-K 22
8.0
Thermal Expansion, µm/m-K 9.2
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
2.4

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 36
35
Embodied Energy, MJ/kg 600
560
Embodied Water, L/kg 230
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
110
Resilience: Unit (Modulus of Resilience), kJ/m3 550
3840
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 25
62
Strength to Weight: Bending, points 27
49
Thermal Diffusivity, mm2/s 8.9
3.2
Thermal Shock Resistance, points 29
72

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.5
Carbon (C), % 0 to 0.080
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.3
1.2 to 1.8
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0 to 0.25
0.2 to 0.3
Palladium (Pd), % 0.040 to 0.080
0
Titanium (Ti), % 98.8 to 99.96
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4