Grade 36 (R58450) Titanium
Grade 36 titanium is a titanium alloy formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. R58450 is the UNS number for this material. Additionally, the ASTM designation is Titanium Grade 36.
It has the highest density and a fairly high embodied energy among wrought titaniums.
The graph bars on the material properties cards below compare grade 36 titanium to: wrought titaniums (top), all titanium alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
110 GPa 15 x 106 psi
Elongation at Break
11 %
Fatigue Strength
300 MPa 44 x 103 psi
Poisson's Ratio
0.36
Shear Modulus
39 GPa 5.7 x 106 psi
Shear Strength
320 MPa 46 x 103 psi
Tensile Strength: Ultimate (UTS)
530 MPa 77 x 103 psi
Tensile Strength: Yield (Proof)
520 MPa 75 x 103 psi
Thermal Properties
Latent Heat of Fusion
370 J/g
Maximum Temperature: Mechanical
320 °C 600 °F
Melting Completion (Liquidus)
2020 °C 3670 °F
Melting Onset (Solidus)
1950 °C 3550 °F
Specific Heat Capacity
420 J/kg-K 0.1 BTU/lb-°F
Thermal Expansion
8.1 µm/m-K
Otherwise Unclassified Properties
Density
6.3 g/cm3 390 lb/ft3
Embodied Carbon
58 kg CO2/kg material
Embodied Energy
920 MJ/kg 400 x 103 BTU/lb
Embodied Water
130 L/kg 15 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
59 MJ/m3
Resilience: Unit (Modulus of Resilience)
1260 kJ/m3
Stiffness to Weight: Axial
9.3 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
23 points
Thermal Shock Resistance
45 points
Alloy Composition
| Ti | 52.3 to 58 | |
| Nb | 42 to 47 | |
| O | 0 to 0.16 | |
| C | 0 to 0.030 | |
| Fe | 0 to 0.030 | |
| N | 0 to 0.030 | |
| H | 0 to 0.0035 | |
| res. | 0 to 0.4 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
Titanium Alloys: Modelling of Microstructure, Properties, and Applications, Wei Sha and Savko Malinov, 2009
ASTM B861: Standard Specification for Titanium and Titanium Alloy Seamless Pipe
ASTM B265: Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate
ASTM B348: Standard Specification for Titanium and Titanium Alloy Bars and Billets
Titanium and Titanium Alloys: Fundamentals and Applications, Christoph Leyens and Manfred Peters (editors), 2003
Titanium, 2nd ed., G. Lutjering and J. C. Williams, 2007