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Titanium Grade 5 (Ti-6Al-4V)
Titanium Grade 5, Ti-6Al-4V, is an alpha-beta titanium alloy with 6% aluminum and 4% vanadium and the most used titanium alloy. Annealed, it runs about 138 ksi (950 MPa) tensile at 0.160 lb/in³ (4.43 g/cm³), one of the best strength-to-weight ratios of any engineering metal. It resists seawater and body fluids. It is expensive and slow to machine.
- UNS
- R56400
- ASTM
- B348 Grade 5 (bar) / B265 Grade 5 (sheet, plate)
- AMS
- AMS 4928 (bar, forgings) / AMS 4911 (sheet, plate)
- EN
- 3.7165 (TiAl6V4)
How does it compare?
Typical room-temperature values for Ti-6Al-4V, against all 48 materials in the library.
- Tensile strength
- 950 MPa93th pct
- Yield strength
- 880 MPa95th pct
- Density
- 4.43 g/cm³55th pct
- Max service temp
- 400 °C90th pct
- Elongation
- 14 %32th pct
- Relative cost
- $$$$$
Bars are relative to the strongest, densest or hottest material in the SSG library. Percentile vs all 48 materials.
- Density
- 4.43 g/cm³ · 0.1600 lb/in³
- Tensile strength
- 950 MPa · 137.8 ksi
- Yield strength
- 880 MPa · 127.6 ksi
- Elongation
- 14%
- Elastic modulus
- 113.8 GPa · 16.5 Msi
- Hardness
- Rockwell C36
- Max service temperature
- 400 °C · 752 °F
- Melting point
- 1604 °C · 2919 °F
- Thermal conductivity
- 6.7 W/m·K
- Machinability
- 22% of 1212 steel
When should you use Ti-6Al-4V?
Strengths
- Strength-to-weight better than 7075 aluminum or alloy steel
- Excellent corrosion resistance in seawater, chlorides and body fluids
- Serviceable to about 750 °F (400 °C)
- Biocompatible; the ELI version (Grade 23) is standard for implants
- Non-magnetic, with low thermal expansion
Watch for
- Material cost roughly 5–8× 6061 aluminum per kilogram
- Slow to machine: about 22% machinability, and low thermal conductivity concentrates heat at the tool
- Galls in sliding contact; needs a coating or dissimilar mating material
- Lower stiffness than steel (114 vs 200 GPa)
Typical parts
- Aerospace brackets and fasteners
- Medical and dental instruments
- Implant components (Grade 23 ELI)
- Motorsport and cycling components
- Marine and chemical processing hardware
- 3D-printed lattice and topology-optimized parts
How Ti-6Al-4V is made into parts
Cost, finishes and design rules for each process in this material.
CNC machining in Ti-6Al-4VCNC milling, turning, and production sawing from bar, plate, castings, and forgings, from prototype to production.
Screw machining in Ti-6Al-4VTurned pins, fittings, shafts, and bushings made from bar stock on multi-spindle and Swiss screw machines at volume.
Forging in Ti-6Al-4VClosed-die and open-die forgings in carbon, alloy, and stainless steel and aluminum, with grain flow for strength.
3D printing in Ti-6Al-4VSLS, MJF, SLA, FDM, and metal printing for prototypes, fixtures, and low-volume production parts.
What does a part in Ti-6Al-4V cost?
A representative part, cnc machining. Raw material at about $45.00/kg is one line of it; process time and tooling usually matter more.
Plate · CNC machining
Order total $5,487
- Tooling
- None
- no hard tooling
- Piece price
- $99.00
- before setup + tooling
- Lead time
- 5–10 days
- to first production
Size
Drag a row to adjust · click to type
Length120120 mm
Width80.080.0 mm
Thickness6.006.00 mm
Quantity
Price per part falls as volume rises
Exact quantity5050 pcs
Material
Design checks pass
Open in builderBudgetary estimate for a representative part. Firm quotes come from principals after drawing review.
Compared head to head
Ti-6Al-4V questions
Grade 5 vs Grade 2 titanium?
Grade 2 is commercially pure titanium with about 50 ksi (345 MPa) minimum tensile, better formability and slightly better corrosion resistance. Grade 5 is nearly three times as strong. Use Grade 2 for formed sheet and chemical service, Grade 5 for structural and machined parts.
Is Grade 5 titanium magnetic?
No. Ti-6Al-4V is only weakly paramagnetic, effectively non-magnetic, which suits medical and instrument applications.
Why is titanium expensive to machine?
Low thermal conductivity (6.7 W/m·K) keeps heat at the cutting edge, and the alloy work-hardens and reacts with tool materials. Cutting speeds run about a quarter of those for free-machining steel, and tools wear faster. Expect machining cost several times an equivalent aluminum part.
What is Grade 23 titanium?
Grade 23 is Ti-6Al-4V ELI (extra low interstitial), with tighter limits on oxygen and iron for better fracture toughness and ductility. It is specified for implants under ASTM F136 and for cryogenic service.
Quote it in Ti-6Al-4V.
Upload CAD or start from a template. The builder prices it in this material and the alternatives.