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Grade 38 Titanium vs. Grade 36 Titanium

Both grade 38 titanium and grade 36 titanium are titanium alloys. Both are furnished in the annealed condition. They have 55% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade 38 titanium and the bottom bar is grade 36 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 11
11
Fatigue Strength, MPa 530
300
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 40
39
Shear Strength, MPa 600
320
Tensile Strength: Ultimate (UTS), MPa 1000
530
Tensile Strength: Yield (Proof), MPa 910
520

Thermal Properties

Latent Heat of Fusion, J/g 410
370
Maximum Temperature: Mechanical, °C 330
320
Melting Completion (Liquidus), °C 1620
2020
Melting Onset (Solidus), °C 1570
1950
Specific Heat Capacity, J/kg-K 550
420
Thermal Expansion, µm/m-K 9.3
8.1

Otherwise Unclassified Properties

Density, g/cm3 4.5
6.3
Embodied Carbon, kg CO2/kg material 35
58
Embodied Energy, MJ/kg 560
920
Embodied Water, L/kg 160
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
59
Resilience: Unit (Modulus of Resilience), kJ/m3 3840
1260
Stiffness to Weight: Axial, points 13
9.3
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 62
23
Strength to Weight: Bending, points 49
23
Thermal Shock Resistance, points 72
45

Alloy Composition

Aluminum (Al), % 3.5 to 4.5
0
Carbon (C), % 0 to 0.080
0 to 0.030
Hydrogen (H), % 0 to 0.015
0 to 0.0035
Iron (Fe), % 1.2 to 1.8
0 to 0.030
Niobium (Nb), % 0
42 to 47
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0.2 to 0.3
0 to 0.16
Titanium (Ti), % 89.9 to 93.1
52.3 to 58
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0 to 0.4
0 to 0.4