ATI Allegheny Ludlum Grade 23 (6-4 ELI) Titanium (UNS R56401)

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ATI Allegheny Ludlum Grade 23 (6-4 ELI) Titanium (UNS R56401)
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Beta Titanium Alloy
Material Notes:	ATI Ti-6Al-4V-ELI, Grade 23 alloy (Extra Low Interstitials, UNS R56407) is a higher purity grade of ATI Ti-6Al-4V alloy. This grade has lower oxygen, carbon, and iron content. It is used in biomedical applications such as surgical instruments, orthopedic implants, and is the preferred grade for marine and cryogenic applications, and some important aerospace components. This titanium grade is produced by vacuum arc primary melting followed by a second vacuum arc remelting operation.
Key Words:	Ti 6-4; Titanium 6-4; ASTM B-265; ASTM F-136; ASME SB-265; AMS 4907-4; MIL-T-9046
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Physical Properties	Original Value	Comments

Density	4.43 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	30
Tensile Strength, Ultimate	828 MPa
Tensile Strength, Yield	759 MPa @Strain 0.2 %
Elongation at Break	10 %

Component Elements Properties	Original Value	Comments
Aluminum, Al	<= 6.5 %
Carbon, C	<= 0.080 %
Hydrogen, H	<= 0.015 %
Iron, Fe	<= 0.25 %
Nitrogen, N	<= 0.030 %
Oxygen, O	<= 0.13 %
Titanium, Ti	90 %	as balance
Vanadium, V	4.0 %

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NLTIT05E / 18056

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