EOS Titanium Ti64 Grade 23 DMSL on EOS M 290; 40 µm Layer Thickness

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EOS Titanium Ti64 Grade 23 DMSL on EOS M 290; 40 µm Layer Thickness
Categories:	Metal; 3D Printing/Additive Manufacturing Metal; Nonferrous Metal; Titanium Alloy
Material Notes:	EOS Titanium Ti64 Grade 23 is a Ti6Al4V alloy with lower amount of oxygen and iron compared to the standard Ti64 alloy. The material is well-known for having excellent mechanical properties: low density with high strength and excellent corrosion resistance. Compared to Ti64, Ti64ELI has better elongation and toughness, but lower strength. Generally, Ti64ELI alloys are considered to be biocompatible and have low specific weight compared to CoCr alloys. Parts built with EOS Titanium Ti64 Grade 23 powder can be machined, shot peened and polished in as manufactured and heat treated states. Due to the layerwise building method, the parts have a certain anisotropy. Heat treatment is recommended to reduce internal stresses and increase ductility. EOS Titanium Ti64 Grade 23 powder can be used on the EOS M 290 with a 40 µm and 80 µm process and on the EOS M 400-4 with an 80 µm process. Main Characteristics: Low weight combined with high strength Excellent corrosion resistance High fatigue resistance compared to other lightweight alloys The parts fulfill chemical requirements for Grade 23 alloy Typical Applications: Medical components Implants Other industrial applications where low weight in combination with high strength are required Information provided by EOS GmbH (Electro Optical Systems).
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Physical Properties	Original Value	Comments

Density	>= 4.40 g/cc	ISO 3369
Particle Size	20 - 80 µm
Thickness	40.0 microns

Mechanical Properties	Original Value	Comments
Tensile Strength	1050 MPa @Treatment Temp. 800 °C, Time 7200 sec	Horizontal, Heat Treated; ISO 6892-1
	1050 MPa @Treatment Temp. 800 °C, Time 7200 sec	Vertical, Heat Treated; ISO 6892-1
Tensile Strength, Yield	940 MPa @Treatment Temp. 800 °C, Time 7200 sec	Horizontal, Heat Treated; ISO 6892-1
	980 MPa @Treatment Temp. 800 °C, Time 7200 sec	Vertical, Heat Treated; ISO 6892-1
Elongation at Break	14 % @Treatment Temp. 800 °C, Time 7200 sec	Horizontal, Heat Treated; ISO 6892-1
	15 % @Treatment Temp. 800 °C, Time 7200 sec	Vertical, Heat Treated; ISO 6892-1
Reduction of Area	>= 25 % @Treatment Temp. 800 °C, Time 7200 sec	Horizontal, Heat Treated; ISO 6892-1
	>= 25 % @Treatment Temp. 800 °C, Time 7200 sec	Vertical, Heat Treated; ISO 6892-1
Fatigue Strength	589 MPa @# of Cycles 1.00e+7	ASTM E466

Component Elements Properties	Original Value	Comments
Aluminum, Al	5.5 - 6.5 %
Carbon, C	<= 0.080 %
Hydrogen, H	<= 0.012 %
Iron, Fe	<= 0.25 %
Nitrogen, N	<= 0.050 %
Other, each	<= 0.10 %
Other, total	<= 0.40 %
Oxygen, O	<= 0.13 %
Titanium, Ti	87.973 - 91 %	Balance
Vanadium, V	3.5 - 4.5 %
Yttrium, Y	<= 0.0050 %

Descriptive Properties
Surface roughness	9 µm	Ra, Vertical
Volume rate	6.2 mm³/s

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NEOS962 / 280622

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