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Grade 38 Titanium vs. Titanium 15-3-3-3

Both grade 38 titanium and titanium 15-3-3-3 are titanium alloys. They have 81% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 38 titanium and the bottom bar is titanium 15-3-3-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 11
5.7 to 8.0
Fatigue Strength, MPa 530
610 to 710
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
39
Shear Strength, MPa 600
660 to 810
Tensile Strength: Ultimate (UTS), MPa 1000
1120 to 1390
Tensile Strength: Yield (Proof), MPa 910
1100 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 330
430
Melting Completion (Liquidus), °C 1620
1620
Melting Onset (Solidus), °C 1570
1560
Specific Heat Capacity, J/kg-K 550
520
Thermal Conductivity, W/m-K 8.0
8.1
Thermal Expansion, µm/m-K 9.3
9.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
40
Density, g/cm3 4.5
4.8
Embodied Carbon, kg CO2/kg material 35
59
Embodied Energy, MJ/kg 560
950
Embodied Water, L/kg 160
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
78 to 89
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
32
Strength to Weight: Axial, points 62
64 to 80
Strength to Weight: Bending, points 49
50 to 57
Thermal Diffusivity, mm2/s 3.2
3.2
Thermal Shock Resistance, points 72
79 to 98

Alloy Composition

Aluminum (Al), % 3.5 to 4.5
2.5 to 3.5
Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 0
2.5 to 3.5
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 1.2 to 1.8
0 to 0.25
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0.2 to 0.3
0 to 0.13
Tin (Sn), % 0
2.5 to 3.5
Titanium (Ti), % 89.9 to 93.1
72.6 to 78.5
Vanadium (V), % 2.0 to 3.0
14 to 16
Residuals, % 0 to 0.4
0 to 0.4