Used in jet engines, gas turbines, pressure vessels, & biomechanical components.

Material & Process Capability

Ti-6Al-4V is an alpha-beta titanium alloy characterized by its strength-to-mass ratio and corrosion resistance. It is a lightweight yet strong alloy suitable for highly loaded structures, including aerospace jet engines, gas turbines, pressure vessels & biomechanical components.

The Velo3D intelligent additive printing solution uniquely enables companies to build the parts they need without compromising design or quality – resulting in complex, higher performance parts than traditional casting techniques or other additive methods.

General Process

This data sheet specifies the expected mechanical properties and characteristics of this alloy when manufactured on a Velo3D Sapphire System. All data is based on parts built with Velo3D standard 50 μm layer thickness parameters, using TEKMAT Ti64-53/20 powder.

Density, g/cc (lbs/cubic inch)4.43 (0.16)
Relative Density, percent99.9+
Surface Finish1, Sa, μm (μin)<15 (590)

Mechanical Properties at Room Temperature

Property2Ultimate Tensile
Strength, MPa (ksi)
Yield (0.2% Off set),
MPa (ksi)
Elongation, percentModulus3
GPa (Msi)
Process RecipeTBR (cc/h)4PowderPost-ProcessingOrientationSample Size5MeanMinMeanMinMeanMinRange
no stress
29Grade 236Anneal8Horizontal30989 (143)980 (142)886 (129)880 (128)14.212.0101 -113 (14.6 - 16.4)
Vertical30961 (139)950 (138)789 (114)775 (112)20.019.0
HIP9Horizontal30948 (137)940 (136)840 (122)835 (121)15.413.5100 - 122 (14.5 - 17.7)
Vertical30926 (134)910 (132)743 (108)720 (104)19.816.5
Grade 57Anneal8Vertical301045 (152)1010 (146)891 (129)835 (121)19.917.7103 - 112 (14.9 - 16.2)
HIP9Vertical301001 (145)975 (141)833 (121)795 (115)18.816.5101 - 118 (14.6 - 17.1)
1. Depends on orientation and process selected; for angles >25° from horizontal. 2. Mechanical & test samples were stress relieved per AMS2801. Samples were machined to ASTM E8 (round specimen #3).
3. Estimate from tensile testing. 4. TBR: Theoretical Build Rate (TBR) is a per-laser build rate calculated from the process conditions of bulk core as scan speed x hatch spacing x layer thickness. This value represents a single laser only and is reported for comparison purposes across different materials and recipes, but does not correspond to true build rate, which is dependent on geometry and system characteristics (i.e. number of lasers, recoat times, etc.). 5. Data from single Sapphire or Sapphire-XC printer. 6. Average oxygen content from inert gas fusion measurements on powder collected pre and post build was 0.12wt%. 7. Average oxygen content from inert gas fusion measurements on powder collected pre and post build was 0.18wt%. 8. Anneal 2 hours at 800°C in argon atmosphere. 9. Hot Isostatic Pressing at 14750 ±250 psi (100 ±2MPa) at 1650 ±25°F (899 ±14°C) for 2h +15/-0min.

Qualified Powder Suppliers

DS-Ti6Al4V.EN.2024-06-03.v2.U.USL 0905-08855_F 2024-06-03. Specifications are subject to change without notice. ©2024 Velo3D, Inc. All rights reserved. Velo, Velo3D, Sapphire, and Intelligent Fusion are registered US trademarks and Assure, Flow, Flow Developer and Without Compromise are trademarks of Velo3D, Inc. All other product or company names may be trademarks and/or registered trademarks of their respective owners.