Titanium
Ti-6Al-4V ELI
Ti-6Al-4V ELI is identified as ASTM Grade 23 by TIMET.
Identity / state reference
What distinguishes this material
ELI has tighter interstitial limits than Grade 5; it is not automatically implant-certified stock.
- Designation in this reference
- Ti-6Al-4V ELI / ASTM Grade 23
- Forms covered by the sources
- Billet
- Bar
- Wire
- Plate
- Sheet
- States to distinguish or confirm
- Heat-treatment condition must be specified
- Temperature and exposure
- No general service-temperature limit or temperature-independent strength is established by this page. Check the temperature and duration for the specific source table and application.
Other search names in these sources
Grade 23
Read the scope above: a source’s related product name is not a blanket interchangeability statement.
Property evidence for a stated condition
No condition-specific numerical table is reproduced here
The linked sources establish the identity and the stated product/state scope. Obtain the row for your actual form, section, treatment and test conditions before adopting strength, hardness or a thermal limit.
Resolve these conditions next
- Does the certificate specify Grade 23 and the actual implant/aerospace product specification and condition?
- Obtain the full material certificate, governing specification/edition, product dimensions and test direction before adopting a property value.
For machining, take the exact grade, supplied condition and measured hardness where applicable into the tool maker’s application data. A generic material-family speed is not a substitute for an operation and tool-specific recommendation.
Sources and what they establish
Reviewed 23 October 2026. A source’s publication date and the review date are different. The scope below identifies the fields checked.
TIMET — timetal-6-4
Producer datasheet for the named alloy; forms, heat treatments, typical/minimum labels and temperatures must be read per table. Legacy publication remains a reference, not a current procurement certificate.
TIMET — timetal-6-4 ↗Source identity, a named product example and a supplied-batch certificate are different evidence. Cross-standard similarity does not approve substitution.
Corrections from the previous article
- Remove 'cutting behaviour is identical' and universal 860 MPa; do not treat alloy identity as medical qualification.
- Remove the untraceable generic machining recommendation (22 %) and cutting-speed ranges; select machining data by actual material condition, tool and operation.
Other references in Titanium
Related references, not equivalent substitutes.