Titanium Ti-5Al-2.5Fe
ISO 5832-10
Ti-5Al-2.5Fe is an alpha-beta titanium alloy developed in Europe as a vanadium-free implant material, using iron rather than vanadium as the beta stabilizer.
Reference datasheet — Ti-5Al-2.5Fe 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 Annealed condition
Ti-5Al-2.5Fe tempers and conditions
Ti-5Al-2.5Fe is supplied in 3 conditions, soft to hard. Annealed is the default FabDigit quotes; the values on this page are for it.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AnnealedDefault mill annealed bar/forging (ISO 5832-10 supply condition) | Standard stocked condition for implant bar and forging stock — balanced strength and ductility. | 870 | 950 | 15 | 32 HRC | — |
Cold drawn + stress relieved bar/wire | Small-diameter bar and wire for bone screws and dental posts where straightness, tolerance and higher yield are needed. | 960 | 1,050 | 12 | 35 HRC | 1.1 % IACS |
Solution treated and aged | Choose for maximum strength and fatigue life in highly loaded hip stems and small-section implants. | 1,010 | 1,100 | 11 | 37 HRC | 1.1 % IACS |
Supply forms, finishes and certifications
Ways Ti-5Al-2.5Fe is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
HotWorked | Hot worked / as-forged | Surface finish |
What is Ti-5Al-2.5Fe?
Ti-5Al-2.5Fe is an alpha-beta titanium alloy developed in Europe as a vanadium-free implant material, using iron rather than vanadium as the beta stabilizer. Annealed stock provides about 870 MPa yield, 950 MPa tensile, 15% elongation and 32 HRC, and it is supplied as bar, hot-worked forgings and cold-drawn/annealed material for hip and dental components. Service temperature is limited to about 300 °C, machinability is low and cold formability is poor; standard coverage and stock are thinner than for Ti-6Al-7Nb, which meets the same vanadium-free requirement. Ti-5Al-2.5Fe has a density of 4.45 g/cm³ (0.161 lb/in³), lighter than 81% of titanium grades. It melts at 1,600°C (2,912 °F). Ti-5Al-2.5Fe has a yield strength of 870 MPa (126 ksi) and a tensile strength of 950 MPa (138 ksi) — stronger than 76% of titanium grades. Elongation at break is 15% and the elastic modulus is 110 GPa (16 Msi).
What is Ti-5Al-2.5Fe used for?
- hip stems
- dental implants
- orthopedic devices
Advantages
- Polishes to a fine finish — 80/100, better than 98% of titanium grades
- High strength — 870 MPa (126 ksi), better than 76% of titanium grades
Limitations
- Difficult to weld — 65/100, worse than 77% of titanium grades
Ti-5Al-2.5Fe properties
Typical room-temperature values for Ti-5Al-2.5Fe-Annealed; bars are the position among titanium grades.
Physical3
Ti-5Al-2.5Fe has a density of 4.45 g/cm³ (0.161 lb/in³), lighter than 81% of titanium grades. It melts at 1,600°C (2,912 °F).
Mechanical16
Ti-5Al-2.5Fe has a yield strength of 870 MPa (126 ksi) and a tensile strength of 950 MPa (138 ksi) — stronger than 76% of titanium grades. Elongation at break is 15% and the elastic modulus is 110 GPa (16 Msi).
Thermal6
Ti-5Al-2.5Fe is rated for continuous service to 300°C (572 °F). It conducts heat at 7 W/m·K (4.04 BTU/hr·ft·°F), worse than 76% of titanium grades. Thermal expansion is 9.5 µm/m·K (5.28 µin/in·°F).
Electrical3
Ti-5Al-2.5Fe conducts electricity at 1.1 % IACS, worse than 67% of titanium grades.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 53% of titanium grades.
Sustainability4
Producing a kilogram of Ti-5Al-2.5Fe takes about 700 MJ of energy and emits 42 kg of CO₂ — more than 74% of titanium grades. Typical recycled content is 15%.
Manufacturability8
Ti-5Al-2.5Fe's machinability is poor (20/100, worse than 68% of titanium grades); weldability good (65/100); formability poor (30/100).
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-5Al-2.5Fe is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Ti-5Al-2.5Fe
Is Ti-5Al-2.5Fe easy to machine?
Machine like Ti-6Al-4V: rigid setups, sharp uncoated-carbide or PVD tools, 25–45 m/min, heavy flood coolant, constant feed to avoid work hardening and titanium fires from fine chips.
Can Ti-5Al-2.5Fe be welded?
GTAW/EBW/laser with full inert (trailing + backing) shielding gives sound joints; keep interpass temperature low and expect some Fe segregation and strength loss in the fusion zone — post-weld stress relief at 550–600 °C recommended.
Can Ti-5Al-2.5Fe be formed, bent or molded?
Cold formability is limited; hot forge/roll in the 850–950 °C α+β range (β transus ≈ 960–980 °C) with controlled cooling to develop a fine bimodal microstructure.
Ti-5Al-2.5Fe 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 |
|---|---|---|
| Alα stabilizer | 4.5 – 5.5 | 5 |
| Feβ stabilizer replacing V | 2 – 3 | 2.5 |
| Ointerstitial, controls strength | ≤ 0.2 | 0.15 |
| N | ≤ 0.05 | 0.02 |
| C | ≤ 0.08 | 0.03 |
| Hlower limits (0.0125 %) often specified for bar | ≤ 0.02 | 0.01 |
| Other, each | ≤ 0.1 | |
| Other, total | ≤ 0.4 | |
| Ti | balance |
What surface finishes work on Ti-5Al-2.5Fe?
Polishes to a mirror finish; anodizes readily for colour coding and biocompatible oxide layers; grit-blast/acid-etch or plasma-spray HA for osseointegration surfaces; avoid chlorinated or fluoride-containing cleaners.
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-5Al-2.5Fe in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- ISO
- 5832-10
How much does Ti-5Al-2.5Fe cost?
Ti-5Al-2.5Fe 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-5Al-2.5Fe — frequently asked
What is Ti-5Al-2.5Fe used for?
Ti-5Al-2.5Fe is typically used for hip stems, dental implants and orthopedic devices. In short: iron-stabilized implant titanium; vanadium-free Ti-6Al-4V substitute.
What is the yield strength of Ti-5Al-2.5Fe?
Ti-5Al-2.5Fe has a typical yield strength of 870 MPa (126 ksi) and a tensile strength of 950 MPa (138 ksi) — stronger than 76% of titanium grades. Strength varies by condition: see the 3 listed tempers.
Is Ti-5Al-2.5Fe easy to machine?
Not especially — machinability is rated poor (20/100, worse than 68% of titanium grades). Machine like Ti-6Al-4V: rigid setups, sharp uncoated-carbide or PVD tools, 25–45 m/min, heavy flood coolant, constant feed to avoid work hardening and titanium fires from fine chips.
Can Ti-5Al-2.5Fe be welded?
Yes — weldability is rated good (65/100). GTAW/EBW/laser with full inert (trailing + backing) shielding gives sound joints; keep interpass temperature low and expect some Fe segregation and strength loss in the fusion zone — post-weld stress relief at 550–600 °C recommended.
What surface finishes work on Ti-5Al-2.5Fe?
Polishes to a mirror finish; anodizes readily for colour coding and biocompatible oxide layers; grit-blast/acid-etch or plasma-spray HA for osseointegration surfaces; avoid chlorinated or fluoride-containing cleaners.
Can Ti-5Al-2.5Fe be formed, bent or molded?
Cold formability is limited; hot forge/roll in the 850–950 °C α+β range (β transus ≈ 960–980 °C) with controlled cooling to develop a fine bimodal microstructure.
What is the maximum service temperature of Ti-5Al-2.5Fe?
Ti-5Al-2.5Fe is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Ti-5Al-2.5Fe Annealed and Ti-5Al-2.5Fe-STA?
Annealed is the default condition — standard stocked condition for implant bar and forging stock — balanced strength and ductility. STA: choose for maximum strength and fatigue life in highly loaded hip stems and small-section implants. Yield strength is 870 MPa in Annealed versus 1,010 MPa in STA.
How much does Ti-5Al-2.5Fe cost?
Ti-5Al-2.5Fe 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
- ISO 5832-10 Implants for surgery — Metallic materials — Part 10: Wrought titanium 5-aluminium 2.5-iron alloy — ISO (1996)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- Materials and Coatings for Medical Devices: Cardiovascular / Handbook of Materials for Medical Devices — ASM International (2003)
- Materials Properties Handbook: Titanium Alloys — ASM International (1994)
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.