Osprey® Ti-6Al-4V-ELI (Grade 23)

Laser – Powder Bed Fusion (L-PBF)

UNS R56401
ASTM, AISI F136
ASTM, AISI F3001

Particle size distribution (process) - pack size

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Product description

Osprey® Ti-6Al-4V-ELI* (Grade 23) is a titanium grade alloyed with aluminium and vanadium, especially developed for additive manufacturing (according to ASTM F3001-14) as well as for hot isostatic pressing.

The grade is characterized by high strength, very good corrosion resistance and low density. It is similar to Osprey® Ti-6Al-4V (Grade 5) but has a lower content of oxygen, nitrogen and iron, resulting in, for example, higher ductility. Osprey® Ti-6Al-4V-ELI (Grade 23) is typically used for medical implants as well as for aerospace and chemical processing applications.

Osprey® titanium powder is manufactured to the highest international quality management standards, for example, AS9100D (aerospace) and ISO 13485:2016 (medical).

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Chemical composition

Chemical composition* (nominal), wt%
Ti	Al	V	Fe	O	C	N	H	Y	Others, each	Others, total
Bal.	5.50-6.50	3.5-4.5	≤0.25	≤0.13	≤0.08	≤0.05	≤0.012	≤0.005	≤0.10	≤0.40

*According to ASTM F3001-14.
Trace and other elements analyzed and reported on request.

Powder characteristics and morphology

Osprey® titanium powder is manufactured by Electrode Inert Gas Atomization (EIGA), producing a powder with a spherical morphology which provides good flow characteristics, optimized depending on the application & specification requirements, and high packing density. In addition, the powder has a low oxygen and nitrogen content and low impurity levels, specifically low levels of non-metallic inclusions, resulting in a metallurgically clean product with enhanced mechanical performance.

The powder is manufactured using a state-of-the-art titanium powder plant that offers a high level of automation. This results in a powder with consistent chemistry, particle size distribution and morphology. The plant also offers a higher efficiency and capacity compared to plants using the plasma atomization process

SEM Micrograph A, B and C.jpg

Particle size distribution

Particle size distributions.jpg

Powder for additive manufacturing

Osprey^® metal powder for additive manufacturing (3D printing, rapid prototyping) is available in a wide range of particle size distributions that are tailored to the individual additive manufacturing systems. They can also be tailored to the particular requirements of the end application, both in terms of mechanical performance and surface finish.

Typical particle size distributions for additive manufacturing
Process technology	Size (µm)
Binder jetting	≤ 16, ≤ 22, ≤ 32, ≤ 38, ≤ 45
Laser - Powder Bed Fusion (L-PBF)	15 to 53 and 10 to 45
Electron beam - Powder Bed Fusion (E-PBF)	45 to 106
Direct Energy Deposition (DED)	53 to 150

Microstructure

Microstructure, Ti-6Al-4V (Grade 23).png

SEM micrographs of Osprey® TI-6AL-4V-ELI (Grade 23) Laser - Powder Bed Fusion (L-PBF) material in a heat-treated condition (solution annealed at 850 °C/1,562 °F for 2h in argon) on the left, featuring a fine lamellar and dense microstructure is identified which originates from the decomposition of martensitic α’ as expected; showing a phase transformation that gave rise to a coarser structure consisting of a α phase matrix (grey) and an interlamellar β phase (bright).

The difference in microstructure for vertical and horizontal builds is not significant. The mechanical properties of heat-treated L-PBF material are provided below.

$SEM micrograph L-PBF featuring ductile fracture surfaces, Ti-6Al-4V (Grade 23).jpg$

SEM micrograph of Osprey® TI-6AL-4V-ELI (Grade 23) Laser - Powder Bed Fusion (L-PBF) material in a heat-treated condition, featuring ductile fracture surface.

Mechanical properties

Typical mechanical properties of material produced by Laser - Powder Bed Fusion (L-PBF) after solution annealing at 850°C/1,562°F for 2h.

Tensile properties in heat-treated condition, metric units
Condition	Direction	Proof strength (R_p0.2), MPa	Tensile strength (R_m), MPa	E-modulus, GPa	Elongation (A), %	Impact toughness, J
As built	Horizontal	957 +/–7	1,076 +/–6	119 +/–2	14.4 +/–0.6	23 +/–0.5
As built	Vertical	997 +/–6	1,094 +/–4	122 +/–2	15.5 +/–0.5	22 +/–0.9

Tensile properties in heat-treated condition, imperial units
Condition	Direction	Proof strength (R_p0.2), ksi	Tensile strength (R_m), ksi	E-modulus, ksi	Elongation (A), %	Impact toughness, ft/lb
As built	Horizontal	139 +/–1	156 +/–1	17,260 +/–290	14.4 +/–0.6	17.0 +/–0.4
As built	Vertical	145 +/–1	159 +/–1	17,695 +/–290	15.5 +/–0.5	16.2 +/–0.7

Hardness

Typical Vickers Hardness (HV) levels (ASTM E92, ISO 6507-1, JIS Z2244, GB/T 4340.1) as well as HRC values of Osprey® TI-6AL-4V-ELI (Grade 23) material in the Laser - Powder Bed Fusion (L-PBF) heat-treated condition.

Hardness in heat-treated condition
Condition	Direction	HV	HRC
Heat treated	Horizontal	344 +/–4	34
Heat treated	Vertical	346 +/–4	34

Surface roughness

Typical surface roughness (Ra), of Osprey® TI-6AL-4V-ELI (Grade 23) in the Laser - Powder Bed Fusion (L-PBF) heat-treated condition.

Surface roughness for heat-treated condition
Direction	Roughness (RA), µm
Horizontal	8.4 +/–0.9
Vertical	9.0 +/–0.2

High cycle fatigue at 350MPa, of Osprey^® TI-6AL-4V-ELI (Grade 23) in the L-PBF heat-treated condition, at different build orientations and surface roughness conditions.

3D printer compatability

Below is a list of OEM equipment that Osprey^® metal powders are suitable for.*

Laser - Powder Bed Fusion (L-PBF)
Particle size distribution: 45 to 15 µm

Renishaw 500Q Flex
Renishaw 500E
Renishaw AM250
SLM Solutions SLM280 Twin
SLM Solutions SLM500 Quad
Concept Laser Mlab
Concept Laser M2 Dual

Laser - Powder Bed Fusion (L-PBF)
Particle size distribution: 53 to 15 µm

EOS M270
EOS M280
EOS M290
EOS M400-4
M290 AMCM

Electron beam - Powder Bed Fusion (E-PBF)
Particle size distribution: 106 to 45 µm

ARCAM Q10

*Disclaimer: We have successfully printed Osprey^® metal powder in the above mentioned OEM equipment. Recommendations are for guidance only, and the suitability of a powder for a specific equipment and application can be confirmed only when we know the actual conditions. Continuous development may necessitate changes in above data without notice. This data is valid only valid for Osprey^® metal powder.

Testing

All Osprey^® metal powders are supplied with a certificate of analysis containing information on the chemical composition and particle size distribution. Information on other powder characteristics is available upon request.

Packaging

5 kg CurTec plastic bottles

All packaging materials are suitable for air, sea and road freight.

Certificates

Certificate of analysis, Osprey® Ti-6Al-4V-ELI (Grade 23), -53 +15.pdf
Certificate of analysis, Osprey® Ti-6Al-4V-ELI (Grade 23), -45 +15.pdf
Certificate of analysis, Osprey® Ti-6Al-4V-ELI (Grade 23), -63 +20.pdf
Certificate of analysis, Osprey® Ti-6Al-4V-ELI (Grade 23), -150 +53.pdf

Related grades

Titanium alloys