Titanium
Ti-6-2-4-2
Ti-6Al-2Sn-4Zr-2Mo is the alloy abbreviated 6-2-4-2.
Identity / state reference
What distinguishes this material
Sheet and bar/forging heat-treatment routes differ; the reviewed producer chemistry includes silicon limits that must be checked against the actual specification.
- Designation in this reference
- Ti-6-2-4-2
- Forms covered by the sources
- Bar
- Forging
- Sheet
- States to distinguish or confirm
- Mill annealed
- Duplex/triplex annealed
- Solution-treated and aged
- 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.
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
- Which product form, silicon requirement, thermal history and exposure duration apply?
- 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-6242
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-6242 ↗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 the unverified ASTM Grade 19 mapping. The old Si range 0.08–0.25% also differs from the reviewed TIMET table 0.06–0.13%; preserve the exact procurement specification instead of combining them.
- Remove one 1000 MPa strength and universal 400°C service claim; do not infer a maximum operating temperature from a summary.
- Remove the untraceable generic machining recommendation (18 %) and cutting-speed ranges; select machining data by actual material condition, tool and operation.
Other references in Titanium
Related references, not equivalent substitutes.