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Grade 3 Titanium vs. Grade 36 Titanium

Both grade 3 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 (8, in this case) are not shown.

For each property being compared, the top bar is grade 3 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, % 21
11
Fatigue Strength, MPa 300
300
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 39
39
Shear Strength, MPa 320
320
Tensile Strength: Ultimate (UTS), MPa 510
530
Tensile Strength: Yield (Proof), MPa 440
520

Thermal Properties

Latent Heat of Fusion, J/g 420
370
Maximum Temperature: Mechanical, °C 320
320
Melting Completion (Liquidus), °C 1660
2020
Melting Onset (Solidus), °C 1610
1950
Specific Heat Capacity, J/kg-K 540
420
Thermal Expansion, µm/m-K 9.2
8.1

Otherwise Unclassified Properties

Density, g/cm3 4.5
6.3
Embodied Carbon, kg CO2/kg material 31
58
Embodied Energy, MJ/kg 510
920
Embodied Water, L/kg 110
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
59
Resilience: Unit (Modulus of Resilience), kJ/m3 910
1260
Stiffness to Weight: Axial, points 13
9.3
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 32
23
Strength to Weight: Bending, points 32
23
Thermal Shock Resistance, points 37
45

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Hydrogen (H), % 0 to 0.015
0 to 0.0035
Iron (Fe), % 0 to 0.3
0 to 0.030
Niobium (Nb), % 0
42 to 47
Nitrogen (N), % 0 to 0.050
0 to 0.030
Oxygen (O), % 0 to 0.35
0 to 0.16
Titanium (Ti), % 98.8 to 100
52.3 to 58
Residuals, % 0
0 to 0.4