Titanium Ti-8Mo-8V-2Fe-3Al
Ti-8Mo-8V-2Fe-3Al is a high-strength metastable beta titanium forging alloy in the same application space as Ti-10V-2Fe-3Al, reaching 1240 MPa yield, 1300 MPa tensile, 8% elongation, 370 HB (40 HRC) and a 110 GPa modulus after aging.
Reference datasheet — Ti-8Mo-8V-2Fe-3Al is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the STA condition
Ti-8Mo-8V-2Fe-3Al tempers and conditions
Ti-8Mo-8V-2Fe-3Al is supplied in 4 conditions, soft to hard. STA is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Solution annealed | Pick for maximum ductility/formability and for machining or welding before final aging. | 860 | 900 | 16 | 30 HRC | — |
As fabricated | Rough forging stock supplied for customer-controlled solution treatment and aging. | 940 | 1,000 | 10 | 33 HRC | 1.1 % IACS |
Solution treated and overaged | Pick when damage tolerance / K_IC matters more than peak strength (landing-gear type forgings). | 1,060 | 1,130 | 11 | 36 HRC | — |
STADefault Solution treated and aged | Standard delivery condition for structural forgings needing 1200–1400 MPa strength. | 1,240 | 1,300 | 8 | 40 HRC | — |
Supply forms, finishes and certifications
Ways Ti-8Mo-8V-2Fe-3Al is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
BA | Beta annealed | Surface finish |
What is Ti-8Mo-8V-2Fe-3Al?
Ti-8Mo-8V-2Fe-3Al is a high-strength metastable beta titanium forging alloy in the same application space as Ti-10V-2Fe-3Al, reaching 1240 MPa yield, 1300 MPa tensile, 8% elongation, 370 HB (40 HRC) and a 110 GPa modulus after aging. It is used for heavy structural aerospace forgings that need deep hardenability, with service to 315 °C. Ductility, formability (15) and weldability (35) are all low, machinability is the poorest of this family (14), and no UNS or AMS designation is on file, so availability is limited. Ti-10V-2Fe-3Al is the standard substitute. Ti-8Mo-8V-2Fe-3Al has a density of 4.9 g/cm³ (0.177 lb/in³), heavier than 96% of titanium grades. It melts at 1,600°C (2,912 °F). Ti-8Mo-8V-2Fe-3Al has a yield strength of 1,240 MPa (180 ksi) and a tensile strength of 1,300 MPa (189 ksi) — stronger than 100% of titanium grades. Elongation at break is 8% and the elastic modulus is 110 GPa (16 Msi).
What is Ti-8Mo-8V-2Fe-3Al used for?
- Structural aerospace forgings
- Landing gear components
- Wing and fuselage fittings
- Actuator bodies and rods
- Hinge and lug fittings
- High-strength fastener stock
- Heavy-section machined billets
Advantages
- High strength — 1,240 MPa (180 ksi), better than 100% of titanium grades
Limitations
- Difficult to machine — 14/100, worse than 100% of titanium grades
- Limited ductility — 8%, worse than 99% of titanium grades
- Poor heat conductor — 6.5 W/m·K (3.76 BTU/hr·ft·°F), worse than 99% of titanium grades
- Low fracture toughness — 45 MPa·√m (41 ksi·√in), worse than 98% of titanium grades
- Difficult to weld — 35/100, worse than 96% of titanium grades
Ti-8Mo-8V-2Fe-3Al properties
Typical room-temperature values for Ti-8Mo-8V-2Fe-3Al-STA; bars are the position among titanium grades.
Physical3
Ti-8Mo-8V-2Fe-3Al has a density of 4.9 g/cm³ (0.177 lb/in³), heavier than 96% of titanium grades. It melts at 1,600°C (2,912 °F).
Mechanical15
Ti-8Mo-8V-2Fe-3Al has a yield strength of 1,240 MPa (180 ksi) and a tensile strength of 1,300 MPa (189 ksi) — stronger than 100% of titanium grades. Elongation at break is 8% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
Ti-8Mo-8V-2Fe-3Al is rated for continuous service to 315°C (599 °F). It conducts heat at 6.5 W/m·K (3.76 BTU/hr·ft·°F), worse than 99% of titanium grades. Thermal expansion is 9.2 µm/m·K (5.11 µin/in·°F).
Electrical3
Ti-8Mo-8V-2Fe-3Al conducts electricity at 1.2 % IACS, worse than 55% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (85/100), worse than 93% of titanium grades.
Sustainability4
Producing a kilogram of Ti-8Mo-8V-2Fe-3Al takes about 700 MJ of energy and emits 45 kg of CO₂ — more than 74% of titanium grades. Typical recycled content is 30%.
Manufacturability6
Ti-8Mo-8V-2Fe-3Al's machinability is not recommended (14/100, worse than 100% of titanium grades); weldability fair (35/100); formability poor (15/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the titanium family
Yield strength against density for every titanium grade FabDigit runs. Ti-8Mo-8V-2Fe-3Al is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Ti-8Mo-8V-2Fe-3Al
Is Ti-8Mo-8V-2Fe-3Al easy to machine?
Machine in the ST/annealed condition where possible: rigid setups, 15–30 m/min carbide surface speed, heavy flood coolant, positive rake and constant feed to avoid work-hardened glaze; aged material cuts like 45 HRC steel with titanium's poor heat conduction.
Can Ti-8Mo-8V-2Fe-3Al be welded?
GTAW/plasma/EBW with full inert shielding or vacuum in the solution-treated condition, then solution treat + age the assembly; welding aged material locally overages and embrittles the HAZ.
Can Ti-8Mo-8V-2Fe-3Al be formed, bent or molded?
Beta-forge just below/around the 770–790 °C transus with controlled cooling; cold or warm forming is practical only in the freshly solution-treated (metastable beta) state, then age to strength.
Ti-8Mo-8V-2Fe-3Al chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Alalpha stabiliser / strengthener | 2.6 – 3.4 | 3 |
| Mobeta stabiliser | 7.5 – 8.5 | 8 |
| Vbeta stabiliser | 7.5 – 8.5 | 8 |
| Festrong, low-cost beta stabiliser; segregation-sensitive | 1.6 – 2.4 | 2 |
| Ointerstitial, max | ≤ 0.14 | 0.11 |
| C | ≤ 0.05 | |
| N | ≤ 0.05 | |
| Hmax (bar/forging) | ≤ 0.02 | |
| Other, eachresiduals | ≤ 0.1 | |
| Other, totalresiduals | ≤ 0.4 | |
| Ti | balance |
What surface finishes work on Ti-8Mo-8V-2Fe-3Al?
Chemical mill or grit blast plus pickle to remove alpha case; anodize (AMS 2488-type) or apply ion/plasma nitride or MoS₂/dry-film lube for galling control; takes a good mechanical polish but avoid HF-containing chemistries.
Surface treatments FabDigit runs on titanium parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Titanium Ti-8Mo-8V-2Fe-3Al in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Also called
- Ti-8-8-2-3
How much does Ti-8Mo-8V-2Fe-3Al cost?
Ti-8Mo-8V-2Fe-3Al is a high-cost titanium ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Ti-8Mo-8V-2Fe-3Al — frequently asked
What is Ti-8Mo-8V-2Fe-3Al used for?
Ti-8Mo-8V-2Fe-3Al is typically used for structural aerospace forgings, landing gear components, wing and fuselage fittings, actuator bodies and rods, hinge and lug fittings and high-strength fastener stock. In short: highest-strength beta forging alloy; 1300 MPa tensile after aging; low formability and weldability.
What is the yield strength of Ti-8Mo-8V-2Fe-3Al?
Ti-8Mo-8V-2Fe-3Al has a typical yield strength of 1,240 MPa (180 ksi) and a tensile strength of 1,300 MPa (189 ksi) — stronger than 100% of titanium grades. Strength varies by condition: see the 4 listed tempers.
Is Ti-8Mo-8V-2Fe-3Al easy to machine?
Not especially — machinability is rated not recommended (14/100, worse than 100% of titanium grades). Machine in the ST/annealed condition where possible: rigid setups, 15–30 m/min carbide surface speed, heavy flood coolant, positive rake and constant feed to avoid work-hardened glaze; aged material cuts like 45 HRC steel with titanium's poor heat conduction.
Can Ti-8Mo-8V-2Fe-3Al be welded?
With care — weldability is rated fair (35/100). GTAW/plasma/EBW with full inert shielding or vacuum in the solution-treated condition, then solution treat + age the assembly; welding aged material locally overages and embrittles the HAZ.
What surface finishes work on Ti-8Mo-8V-2Fe-3Al?
Chemical mill or grit blast plus pickle to remove alpha case; anodize (AMS 2488-type) or apply ion/plasma nitride or MoS₂/dry-film lube for galling control; takes a good mechanical polish but avoid HF-containing chemistries.
Can Ti-8Mo-8V-2Fe-3Al be formed, bent or molded?
Beta-forge just below/around the 770–790 °C transus with controlled cooling; cold or warm forming is practical only in the freshly solution-treated (metastable beta) state, then age to strength.
What is the maximum service temperature of Ti-8Mo-8V-2Fe-3Al?
Ti-8Mo-8V-2Fe-3Al is rated for continuous use to about 315°C (599 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Ti-8Mo-8V-2Fe-3Al-STA and Ti-8Mo-8V-2Fe-3Al-ST?
STA is the default condition — standard delivery condition for structural forgings needing 1200–1400 MPa strength. ST: pick for maximum ductility/formability and for machining or welding before final aging. Yield strength is 1,240 MPa in STA versus 860 MPa in ST.
How much does Ti-8Mo-8V-2Fe-3Al cost?
Ti-8Mo-8V-2Fe-3Al is a high-cost titanium ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- Materials Properties Handbook: Titanium Alloys — ASM International (1994)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- Titanium: A Technical Guide, 2nd ed. — ASM International (2000)
- AMS 2488 — Anodic Treatment of Titanium and Titanium Alloys — SAE International (2019)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.