Titanium
Ti-5Al-2.5Sn
Ti-5Al-2.5Sn is an all-alpha titanium alloy; standard and ELI identities must remain separate.
Identity / state reference
What distinguishes this material
The public producer-sourced abstract establishes identity; historical ELI cryogenic research cannot qualify all normal-grade stock.
- Designation in this reference
- Ti-5Al-2.5Sn
- Forms covered by the sources
- Sheet
- Strip
- States to distinguish or confirm
- Confirm annealed condition and standard versus ELI grade
- Temperature and exposure
- Standard and ELI temperature evidence must remain separate; this page does not establish current certified service limits.
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 specification require normal or extra-low-interstitial material and which sheet/strip 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.
ASM Alloy Digest — Ti-5Al-2.5Sn, producer TMCA
1964 producer-sourced public abstract establishes all-alpha alloy and sheet/strip focus. Full paid datasheet not read; no numeric values imported.
ASM Alloy Digest — Ti-5Al-2.5Sn, producer TMCA ↗NASA — historical Ti-5Al-2.5Sn ELI investigation
Historical primary study distinguishes standard and ELI material; not blanket current service-temperature approval or substitution.
NASA — historical Ti-5Al-2.5Sn ELI investigation ↗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 universal 790 MPa/30 HRC and unqualified cryogenic suitability; current mechanical specification remains a gap.
- Remove the untraceable generic machining recommendation (20 %) and cutting-speed ranges; select machining data by actual material condition, tool and operation.
Other references in Titanium
Related references, not equivalent substitutes.