ASTM B817 Type II Grade 1 Class B Titanium
ASTM B817 type II grade 1 class B is ASTM B817 type II in the as-fabricated (no temper or treatment) condition. The graph bars on the material properties cards below compare ASTM B817 type II grade 1 class B to: powder metallurgy titanium alloys (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
100 GPa 15 x 106 psi
Elongation at Break
6.0 %
Fatigue Strength
480 MPa 70 x 103 psi
Poisson's Ratio
0.32
Reduction in Area
8.0 %
Shear Modulus
40 GPa 5.7 x 106 psi
Tensile Strength: Ultimate (UTS)
960 MPa 140 x 103 psi
Tensile Strength: Yield (Proof)
900 MPa 130 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Mechanical
350 °C 660 °F
Melting Completion (Liquidus)
1580 °C 2880 °F
Melting Onset (Solidus)
1530 °C 2790 °F
Specific Heat Capacity
550 J/kg-K 0.13 BTU/lb-°F
Thermal Expansion
9.9 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
37 % relative
Density
4.6 g/cm3 290 lb/ft3
Embodied Carbon
40 kg CO2/kg material
Embodied Energy
650 MJ/kg 280 x 103 BTU/lb
Embodied Water
220 L/kg 26 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
56 MJ/m3
Resilience: Unit (Modulus of Resilience)
3890 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
34 points
Strength to Weight: Axial
58 points
Strength to Weight: Bending
47 points
Thermal Shock Resistance
66 points
Alloy Composition
| Ti | 82.1 to 87.8 | |
| Al | 5.0 to 6.0 | |
| V | 5.0 to 6.0 | |
| Sn | 1.5 to 2.5 | |
| Fe | 0.35 to 1.0 | |
| Cu | 0.35 to 1.0 | |
| O | 0 to 0.3 | |
| Na | 0 to 0.2 | |
| Cl | 0 to 0.2 | |
| C | 0 to 0.1 | |
| Si | 0 to 0.1 | |
| N | 0 to 0.040 | |
| H | 0 to 0.015 | |
| res. | 0 to 0.4 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
ASTM B817: Standard Specification for Powder Metallurgy (P/M) Titanium Alloy Structural Components
Titanium and Titanium Alloys: Fundamentals and Applications, Christoph Leyens and Manfred Peters (editors), 2003
Titanium, 2nd ed., G. Lutjering and J. C. Williams, 2007