Bar and Rod
Plate and Sheet
Strip
Pipe and Tube
Wire
Welding
Powder Material
Cast Products
Forged Products
Fittings
Fastening
Round Bar:
φ2–500 mm, 1–6 m length
Flat/Square Bar:
4–100 mm thickness/width
Hex Bar:
A/F 3–100 mm
Hollow Bar:
OD 20–300 mm
Sheet:
0.3–6 mm thickness
Medium Plate:
6–25 mm thickness
Heavy Plate:
25–100 mm thickness
Standard Strip:
0.05–3 mm thick,
10–600 mm wide
Precision strip:
0.01–0.5 mm thick,
tight tolerance ±0.005 mm
Foil:
0.005–0.1 mm thick
Seamless Tube:
OD 6–450 mm,
WT 1–50 mm,
1–12 m length
Welded Tube:
OD 10–600 mm,
WT 1–20 mm
Capillary Tube:
OD 1–10 mm,
WT 0.1–2 mm
Wire Form:
Cold Drawn Wire,
Bright Wire,
Spring Wire,
Fine Wire,
Ultra-fine Wire
General Diameter:
φ0.1–10 mm
Coil Weight:
50–500 kg,
customizable tolerance
Solid Wire:
φ0.8–4.0 mm
Flux-cored Wire:
φ1.2–4.0 mm
Welding Rod:
φ2.0–5.0 mm
Powder Form:
AM 3D Printing Powder,
Spherical Powder,
Gas-atomized Powder,
Water-atomized Powder
Particle Size:
10–150 μm
Sphericity:
≥90% for AM grade
Cast Ingot:
φ200–800 mm
Precision Casting:
min wall 0.5 mm
Cast Pipe:
OD 100–600 mm,
WT 10–50 mm
Forged Bar:
Φ35–500 mm
Forged Ring:
OD 200–2000 mm
Forging Weight:
1–5000 kg
Fittings Form:
Elbow, Tee, Reducer, Flange, Cap, Outlet, Lap Joint
Size range:
1/2''–24'' (DN15–DN600)
Wall thickness:
Sch10–Sch160, STD, XS, XXS
Pressure Class:
150–2500 LB
Fastening Form:
Bolt, Nut, Screw, Stud, Washer, Pin, Rivet
Metric: M3–M64
Imperial: #4–2.5''
Length: 6–500 mm
R56400 is an alpha-beta titanium alloy containing about 6% aluminium and 4% vanadium (Ti-6Al-4V). This datasheet presents the material within the American (ASTM / ASME / UNS) standard system.
The most widely used titanium alloy in the world — accounting for roughly half of all titanium consumed — R56400 combines high specific strength, excellent corrosion resistance, good weldability and excellent biocompatibility. The aluminium stabilises and strengthens the alpha phase while the vanadium stabilises the beta phase, giving a two-phase alpha-beta microstructure that, unlike the commercially pure and near-alpha grades, can be strengthened by heat treatment (solution treatment and ageing) as well as used in the annealed condition. It offers high strength at low-to-moderate temperatures (usable to about 400 °C), good fatigue and creep resistance, and a low elastic modulus. It is normally supplied mill-annealed for the best combination of strength, toughness and ductility.
Typical applications include aircraft turbine-engine components, airframe and spacecraft structures, aerospace fasteners, pressure vessels and rocket cases, medical implants and prostheses, and high-performance marine and automotive parts.
| Property | Value | Unit |
|---|---|---|
| Density | 4.43 | g/cm³ |
| Melting range | 1604–1660 | °C |
| Elastic modulus | 114 | GPa |
| Coefficient of thermal expansion (20–100 °C) | 8.6 | µm/m·°C |
| Thermal conductivity (20 °C) | 6.7 | W/m·K |
| Specific heat (20 °C) | 526 | J/kg·K |
| Structure | Alpha-beta | — |
| Element | Symbol | Min % | Max % | Role in Alloy |
|---|---|---|---|---|
| Titanium | Ti | Balance | — | Base element |
| Aluminium | Al | 5.50 | 6.75 | Alpha stabiliser; strength |
| Vanadium | V | 3.50 | 4.50 | Beta stabiliser; strength, heat-treatability |
| Iron | Fe | — | 0.30 | Residual |
| Oxygen | O | — | 0.20 | Interstitial; strength |
| Carbon | C | — | 0.08 | Interstitial impurity |
| Nitrogen | N | — | 0.05 | Interstitial impurity |
| Hydrogen | H | — | 0.015 | Interstitial impurity |
Nominal: Ti-6Al-4V alpha-beta titanium alloy; heat-treatable.
Per ASTM B265 for UNS R56400.
| Condition | Property | Value |
|---|---|---|
| Annealed | Tensile strength (UTS) | ≥895 MPa (130 ksi) |
| Annealed | 0.2% yield strength | ≥828 MPa (120 ksi) |
| Annealed | Elongation at break | ≥10 % |
| Solution treated & aged | Tensile strength (UTS) | up to ~1170 MPa (170 ksi) |
| — | Elastic modulus | 114 GPa |
Confirm against the mill test report. Strength can be raised by solution treatment and ageing (STA), generally in sections up to about 25 mm.
| Environment | Performance | Notes |
|---|---|---|
| Seawater / marine | Excellent | Resists chloride attack |
| Atmospheric / general | Excellent | Titanium oxide film |
| Oxidizing acids | Excellent | Stable passive film |
| Wet chlorine / chlorine dioxide | Very Good | Good resistance |
| Elevated temperature | Good | Usable to ~400 °C |
Corrosion resistance is characteristic of titanium — excellent in seawater, marine atmospheres and oxidizing media — combined with high strength and excellent biocompatibility for implants.
An alpha-beta titanium alloy; can be used annealed or strengthened by solution treatment and ageing.
Solution Treatment Solution treat at approximately 900–955 °C (below the beta transus) and quench. Mill annealing (~700–785 °C, air cool) is used for the standard annealed condition.
Ageing Age at approximately 480–595 °C to precipitate fine alpha and develop higher strength (STA condition). The response to ageing is effective in sections up to about 25 mm. Protect from oxygen, nitrogen and hydrogen pickup at temperature.
Weldable by inert-gas processes; the weld pool and cooling weld must be fully shielded from atmospheric contamination, which causes embrittlement. Post-weld stress relief or annealing is commonly applied.
| Welding Process | Applicability | Filler / Consumable |
|---|---|---|
| GTAW / TIG | Good | AWS A5.16 ERTi-5 (matching) |
| GMAW / MIG | Good | ERTi-5 |
| EBW / laser / resistance | Good | Autogenous or matching filler |
Use full inert-gas shielding and clean, contamination-free surfaces; avoid hydrogen, oxygen and nitrogen pickup. Post-weld heat treatment is common.
Machining Guidelines
| Parameter | Recommendation |
|---|---|
| Machinability | Difficult; slow speeds, heavy feeds, rigid tooling |
| Coolant | Large volume of non-chlorinated cutting fluid |
| Note | Practices similar to austenitic stainless steel |
Forming Processes
| Process | Notes |
|---|---|
| Cold forming | Difficult even when annealed; limited |
| Hot forming | ~540–760 °C (creep/hot forming); finish-forge from ~954 °C |
| Industry | Typical Components | Key Requirements |
|---|---|---|
| Aerospace | Turbine blades/discs, airframe, fasteners | Specific strength + fatigue resistance |
| Medical | Implants, prostheses, surgical hardware | Biocompatibility + strength |
| Marine / offshore | Equipment, oil & gas components | Corrosion resistance + strength |
| Power / motorsport | Pressure vessels, high-performance parts | Strength-to-weight |
| Product Form | ASTM Standard | AMS |
|---|---|---|
| Sheet, strip and plate | ASTM B265 (Grade 5) | AMS 4911 |
| Bar, billet and forgings | ASTM B348 (Grade 5) | AMS 4928 / 4965 |
| Surgical implant stock | ASTM F1472 | — |
| Welding wire | AWS A5.16 ERTi-5 | AMS 4963 |
Ti-6Al-4V alpha-beta titanium alloy. UNS R56400.
| UNS | Al % | V % | Type | Best Used For |
|---|---|---|---|---|
| R56400 | 5.5–6.75 | 3.5–4.5 | Alpha-beta | Ti-6Al-4V; most-used alloy, high strength, heat-treatable |
| R56407 | 5.5–6.5 | 3.5–4.5 | Alpha-beta | Ti-6Al-4V ELI; medical/cryogenic (Grade 23) |
| R56320 | 2.5–3.5 | 2–3 | Near-alpha | Ti-3Al-2.5V; tubing (Grade 9) |
| R54520 | 4.5–5.75 | — | Near-alpha | Ti-5Al-2.5Sn; high-temperature (Grade 6) |
| R50400 | — | — | CP (unalloyed) | Workhorse commercially pure titanium (Grade 2) |
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