Titanium Grade 5 Round Bars — ASTM B348 Ti-6Al-4V Manufacturer, Supplier & Exporter
Jade Alloys is a global supplier, exporter, manufacturer of Titanium Grade 5 Round Bars (Ti-6Al-4V) for sale in the United States, Europe, Middle East and Asia. Manufactured to the highest metallurgical standards and used throughout the world for their superior strength-to-weight ratio and superior corrosion resistance, our ASTM B348 / ASME SB348 certified bars are ideal for aerospace, medical, marine and chemical processing applications.
Jade Alloys offers a dedicated inventory of more than 200 size variants, has an on-demand dispatch system, is backed by full mill test certificates and has a proven export track record of 40+ countries, giving procurement professionals the quality and reliability they can trust.
- ASTM B348, ASTM F136, and AMS 4928 certified
- Full material traceability with MTC (Mill Test Certificates)
- Sizes from 3 mm to 800 mm diameter — in stock
- Custom cutting, machining, and surface finishing available
- Export to USA, Germany, Saudi Arabia, Singapore, Australia, and 35+ more countries
- Competitive pricing with no minimum order quantity on select sizes
Explore our complete range of Titanium Round Bars and Industrial Round Bars for additional grades and specifications.
Quick Section Links
- What Are Titanium Grade 5 Round Bars (Ti-6Al-4V)?
- Titanium Grade 5 Round Bar Specifications
- Titanium Grade 5 Chemical Composition (ASTM B348)
- Titanium Grade 5 Mechanical Properties
- Elevated Temperature Strength Retention
- Physical, Thermal & Electrical Properties
- International Equivalent Grades for Titanium Grade 5
- Titanium Grade 5 Round Bar Size & Weight Chart
- Surface Finish Options for Titanium Grade 5 Bars
- Heat Treatment & Processing Guidelines
- Applications of Titanium Grade 5 Round Bars
- Testing, Inspection & Quality Certifications
- Related Products
- Frequently Asked Questions – Titanium Grade 5 Round Bars
What Are Titanium Grade 5 Round Bars (Ti-6Al-4V)?
Titanium Grade 5 Round Bars are manufactured from Ti-6Al-4V, the most widely used titanium alloy in the world, accounting for more than 50% of all titanium alloy production globally. The designation “6Al-4V” reflects the alloy’s precise composition: 6% aluminum (Al) and 4% vanadium (V) added to a pure titanium base, with balance elements including iron, oxygen, carbon, nitrogen, and hydrogen controlled to tight tolerances per ASTM B348.
This alloy belongs to the alpha-beta family of titanium alloys, meaning it contains a stable mix of both the hexagonal close-packed (HCP) alpha phase and the body-centered cubic (BCC) beta phase at room temperature. This dual-phase microstructure is what gives Grade 5 its exceptional combination of strength, toughness, and formability properties that pure commercially pure (CP) titanium grades (Grade 1–4) cannot achieve.
Key Differentiators vs. CP Titanium Grades:
| Property | Grade 5 (Ti-6Al-4V) | Grade 2 (CP Titanium) | Advantage |
|---|---|---|---|
| Tensile Strength | 950 MPa (min.) | 345 MPa (min.) | Grade 5 is ~2.75× stronger |
| Yield Strength | 880 MPa (min.) | 275 MPa (min.) | Grade 5 superior for structural use |
| Heat Treatability | Yes — age hardenable | No | Grade 5 can be strengthened further |
| Density | 4.43 g/cm³ | 4.51 g/cm³ | Comparable — both are lightweight |
| Corrosion Resistance | Excellent | Excellent | Both outstanding in seawater/acids |
| Cost | Higher | Lower | Grade 5 justified by performance |
| Primary Use | Aerospace, medical, high-stress | Chemical, marine, thin sheet | Application-specific selection |
For applications requiring high-strength corrosion-resistant titanium products, see our Titanium Grade 2 Round Bars page.
Titanium Grade 5 Round Bar Specifications
Jade Special Metals supplies Titanium Grade 5 bars conforming to multiple international standards and dimensional specifications. Custom sizes, lengths, and tolerances are available upon request.
| Parameter | Details |
|---|---|
| Primary Standard | ASTM B348 / ASME SB348 |
| Aerospace Standard | AMS 4928, AMS 4965, AMS 4967, AMS 6931 |
| Surgical Implant | ASTM F136 |
| Military Standard | MIL-T-9047 |
| Common Name / Alloy | Ti-6Al-4V, Grade 5 Titanium, 6Al-4V, DIN 3.7165 |
| UNS Number | R56400 |
| Werkstoff Nr. | 3.7165, 3.7164 |
| Round Bar Diameter | 3 mm to 800 mm |
| Hex Bar (A/F) | 2 mm to 100 mm |
| Square Bar | 4 mm × 4 mm to 100 mm × 100 mm |
| Flat Bar Thickness | 2 mm to 100 mm |
| Flat Bar Width | 10 mm to 500 mm |
| Hollow Bar | 32 mm OD × 16 mm ID to 250 mm OD × 200 mm ID |
| Threaded Bar Diameter | 1/2″ to 495 mm |
| Rectangular Bar | 33 × 30 mm to 295 × 1066 mm |
| Angle Bar | 3×20×20 mm to 12×100×100 mm |
| Channel Bar | 80×40 mm to 150×75 mm section |
| Length (Standard) | 1 m to 6 m; custom lengths available |
| Tolerances | H8, H9, H10, H11, H12, H13, K9, K10, K11, K12 or per client requirement |
| Condition | Annealed, Hardened & Tempered, Solution Treated & Aged |
| Processing Method | Hot Rolled, Cold Drawn, Cold Rolled, Forged |
| Bar Cutting | Up to 650 mm precision cut |
Titanium Grade 5 Chemical Composition (ASTM B348)
The chemical composition of Titanium Grade 5 (Ti-6Al-4V) is strictly controlled per ASTM B348. All material supplied by Jade Special Metals is accompanied by a certified Mill Test Certificate (MTC) confirming compliance with the following limits:
| Element | Symbol | Min. % | Max. % | Role in Alloy |
|---|---|---|---|---|
| Titanium | Ti | Balance (~90%) | Balance | Base metal — provides corrosion resistance and low density |
| Aluminum | Al | 5.50 | 6.75 | Alpha stabilizer — increases strength at elevated temperatures |
| Vanadium | V | 3.50 | 4.50 | Beta stabilizer — improves strength, heat treatability |
| Iron | Fe | — | 0.25 (ASTM B348) / 0.40 (AMS) | Impurity — controlled to maintain toughness |
| Oxygen | O | — | 0.20 (AMS) / 0.02 (ASTM B348) | Interstitial strengthener — raises hardness |
| Carbon | C | — | 0.10 | Impurity — controlled for ductility |
| Nitrogen | N | — | 0.05 | Impurity — controlled for toughness |
| Hydrogen | H | — | 0.015 | Impurity — controlled to prevent embrittlement |
| Residuals (each) | — | — | 0.10 | Other trace elements |
| Total Residuals | — | — | 0.40 | Cumulative impurity limit |
Note: ASTM B348 Grade 5 and AMS 4928 have slightly different tolerances for Fe and O. Jade Special Metals can supply material certified to either standard. Please specify your requirement at the time of inquiry.
Titanium Grade 5 Mechanical Properties
The mechanical properties below represent the minimum guaranteed values for ASTM B348 Grade 5 round bars in the annealed condition. Material supplied in other heat treatment conditions (STA, duplex annealed) will exhibit higher strength values.
| Property | Value (Metric) | Value (Imperial) | Test Standard |
|---|---|---|---|
| Density | 4.43 g/cm³ | 0.160 lb/in³ | ASTM B311 |
| Melting Point | 1604–1660 °C | 2920–3020 °F | — |
| Ultimate Tensile Strength (UTS) | 950 MPa (min.) | 138,000 psi (min.) | ASTM E8 |
| 0.2% Yield Strength (YS) | 880 MPa (min.) | 128,000 psi (min.) | ASTM E8 |
| Elongation in 2″ | 14% (min.) | 14% (min.) | ASTM E8 |
| Reduction of Area | 25% (min.) | 25% (min.) | ASTM E8 |
| Hardness (Typical) | 30–36 HRC / 310–380 HBW | 30–36 HRC | ASTM E18 |
| Elastic Modulus | 114 GPa | 16.5 Mpsi | ASTM E111 |
| Poisson’s Ratio | 0.30–0.33 | 0.30–0.33 | — |
| Fracture Toughness (KIc) | ~55 MPa√m (annealed) | ~50 ksi√in | ASTM E399 |
| Fatigue Limit (unnotched) | ~620 MPa | ~90,000 psi | ASTM E466 |
| Shear Modulus | 44 GPa | 6.38 Mpsi | — |
Elevated Temperature Strength Retention
One of the defining advantages of Ti-6Al-4V over commercially pure titanium and many aluminum alloys is its ability to retain meaningful strength at elevated temperatures. The alloy maintains useful mechanical properties up to approximately 315°C (600°F) for structural applications, and short-term exposure up to 427°C (800°F) in non-oxidizing environments.
| Temperature | UTS (MPa) | YS (MPa) | Elongation (%) |
|---|---|---|---|
| Room Temperature (20°C) | 950+ | 880+ | 14+ |
| 200°C (392°F) | ~800 | ~700 | 16 |
| 300°C (572°F) | ~680 | ~580 | 18 |
| 400°C (752°F) | ~520 | ~440 | 20 |
Physical, Thermal & Electrical Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Density | 4.43 | g/cm³ | Room temperature |
| Thermal Conductivity | 6.7 | W/m·K | 20°C |
| Specific Heat Capacity | 0.5263 | J/g·°C | Room temperature |
| CTE (linear, 20–100°C) | 8.6 | µm/m·°C | 20–100°C range |
| CTE (linear, 20–315°C) | 9.2 | µm/m·°C | Average over range |
| CTE (linear, 20–650°C) | 9.7 | µm/m·°C | Average over range |
| Electrical Resistivity | 178 | µΩ·cm (0.000178 Ω·cm) | Room temperature |
| Magnetic Permeability | 1.00005 | — | At 1.6 kA/m |
| Beta Transus Temperature | ~980°C | °C | Nominal |
| Solidus Temperature | 1604°C | °C | — |
| Liquidus Temperature | 1660°C | °C | — |
International Equivalent Grades for Titanium Grade 5
Titanium Grade 5 (Ti-6Al-4V) is recognized under multiple international designation systems. The table below identifies equivalent grades used by procurement teams in the USA, Europe, Japan, and other markets:
| Standard | Designation | Organization / Country |
|---|---|---|
| UNS | R56400 | USA — ASTM/SAE |
| AMS | 4928, 4965, 4967, 6931 | USA — SAE International (Aerospace) |
| ASTM | B348 Grade 5 | USA — ASTM International |
| ASME | SB348 Grade 5 | USA — ASME Boiler & Pressure Vessel |
| ASTM Surgical | F136 | USA — Medical Device Applications |
| Military | MIL-T-9047 | USA — Military Specification |
| Werkstoff Nr. | 3.7165 / 3.7164 | Germany / EU — DIN Standard |
| JIS | TAP6400 / 60Ti-6Al-4V | Japan — JIS Standard |
| BS (UK) | TA11 | United Kingdom — British Standard |
| ISO | Ti-6Al-4V (ISO 5832-3 for surgical) | International Organization for Standardization |
| GOST | VT6 / VT6S | Russia — GOST Standard |
| GB/T | TC4 | China — National Standard |
Titanium Grade 5 Round Bar Size & Weight Chart
The following weight reference chart covers common diameters for Titanium Grade 5 Round Bars based on a density of 4.43 g/cm³. Use this data for material cost estimation, shipping calculations, and structural design checks.
| Diameter | Weight (kg/ft) | Weight (kg/m) | Cross Section Area (cm²) |
|---|---|---|---|
| 3 mm | 0.017 | 0.055 | 0.071 |
| 4 mm | 0.030 | 0.098 | 0.126 |
| 5 mm | 0.047 | 0.154 | 0.196 |
| 6 mm | 0.068 | 0.223 | 0.283 |
| 8 mm | 0.120 | 0.398 | 0.503 |
| 10 mm | 0.189 | 0.620 | 0.785 |
| 12 mm | 0.271 | 0.889 | 1.131 |
| 16 mm | 0.481 | 1.578 | 2.011 |
| 20 mm | 0.753 | 2.470 | 3.142 |
| 25 mm | 1.180 | 3.871 | 4.909 |
| 30 mm | 1.691 | 5.548 | 7.069 |
| 35 mm | 2.390 | 7.553 | 9.621 |
| 40 mm | 3.009 | 9.872 | 12.566 |
| 50 mm | 4.698 | 15.414 | 19.635 |
| 60 mm | 6.768 | 22.205 | 28.274 |
| 75 mm | 10.579 | 34.694 | 44.179 |
| 100 mm | 18.796 | 61.657 | 78.540 |
| 120 mm | 27.067 | 88.790 | 113.097 |
| 150 mm | 42.292 | 138.734 | 176.715 |
| 200 mm | 75.184 | 246.636 | 314.159 |
Note: Weights are theoretical. Actual weight may vary ±2% depending on surface finish and cutting method. Contact our sales team for exact weights on specific bar lengths.
Surface Finish Options for Titanium Grade 5 Bars
The surface finish of a titanium bar affects its dimensional tolerance, fatigue performance, oxidation resistance, and suitability for specific downstream processes. Jade Special Metals stocks and supplies Titanium Grade 5 bars in all major surface finish categories:
| Finish Code | Full Name | Description & Use Case |
|---|---|---|
| CD | Cold Drawn | Tight dimensional tolerance; smooth surface; used in precision machining |
| BD | Bright Drawn | High-quality surface; excellent for medical and aerospace parts requiring low roughness |
| CG / CGr | Centreless Ground | Very tight tolerance (h6–h9); used in CNC applications and tight-fit assemblies |
| CF | Cold Finished | Generic term for cold-worked bars with improved surface vs. hot rolled |
| P&T | Peeled & Turned | Removes scale and defects from hot-rolled bars; better surface, relaxed tolerance |
| ST | Smooth Turned | Lathe-turned surface; suitable for general machined parts |
| P | Polished | Electropolished or mechanically polished; mirror or satin finish; medical use |
| SRE | Slit Rolled Edge | Flat bars with clean slit edges; structural applications |
| HF | Hot Finished | Black/scaled surface from hot rolling; cost-effective for large structural bars |
| HRAP | Hot Rolled Annealed & Pickled | Scale removed by acid pickling after annealing; clean but not ground |
| RT | Rough Turned / Peeled | Economical surface prep for further machining; removes forging/rolling skin |
| PR | Peeled & Reeled | Combined peeling and reel straightening; excellent straightness and surface |
| Black | Black Surface | As-forged or as-rolled scale; lowest cost; for heat treatment or heavy machining |
| Annealed | Annealed Condition | Stress-relieved microstructure; best ductility for forming operations |
Heat Treatment & Processing Guidelines
Titanium Grade 5 can be heat treated to achieve significantly higher mechanical properties than the standard annealed condition. Jade Special Metals supplies bars in various heat treatment conditions and can advise on processing parameters for your application.
Standard Heat Treatment Conditions:
| Condition | Temperature (°C) | Temperature (°F) | Time | Cooling | Typical UTS |
|---|---|---|---|---|---|
| Stress Relief (Annealed) | 480–595°C | 900–1100°F | 1–4 hours | Air cool | 950 MPa |
| Full Anneal | 700–785°C | 1300–1450°F | 1–2 hours | Furnace cool | 930 MPa |
| Duplex Anneal | 900°C + 790°C | 1650°F + 1450°F | 2 hrs each | Air cool | 970 MPa |
| Solution Treat (STA) | 900–955°C | 1650–1750°F | 30–60 min | Water/air quench | 1100–1170 MPa |
| Age (after STA) | 480–510°C | 900–950°F | 4–8 hours | Air cool | 1100–1200 MPa |
Critical Processing Notes:
- Working Temperature: Hot working must be performed above 760°C (1400°F) to avoid oxygen embrittlement. Ideal range is 900–1000°C (1652–1832°F).
- Machining: Grade 5 has poor thermal conductivity — use sharp tooling, high cutting fluid flow, and lower speeds than steel (approx. 50–100 m/min). Carbide tooling recommended.
- Welding: GTAW (TIG) in argon-shielded environment preferred. Post-weld stress relief at 480–595°C. Grade 5 is weldable in all positions.
- Post-Fabrication Annealing: Strongly recommended after forming or welding to restore corrosion resistance and reduce residual stress.
- Avoid Contamination: Titanium reacts with iron at elevated temperatures — keep tools, fixtures, and work surfaces clean and dedicated to titanium.
Applications of Titanium Grade 5 Round Bars
The unmatched combination of high specific strength (strength-to-weight ratio), corrosion resistance, biocompatibility, and temperature capability makes Ti-6Al-4V round bars and rods the material of choice across the most demanding industries in the world.
Aerospace & Defense
Ti-6Al-4V accounts for approximately 25–30% of all titanium used in aircraft structures. Grade 5 bars are used to manufacture:
- Airframe structural members, bulkheads, and frames (Boeing 787, Airbus A350)
- Jet engine components: fan blades, compressor discs, shafts, and fasteners
- Landing gear components, hydraulic actuator bodies
- Rocket motor casings, missile airframes, and military aircraft parts
- Fasteners, bolts, and structural pins (weight saving vs. steel: ~40–45%)
Medical & Dental Applications
Grade 5 titanium’s biocompatibility (ISO 10993 compliant) and corrosion resistance in physiological fluids make it ideal for implantable devices:
- Orthopedic implants: hip stems, knee components, spinal cages, bone screws
- Dental implants, abutments, and prosthetic frameworks
- Surgical instruments requiring high strength and autoclavability
- Cardiovascular devices, catheter shafts, and endoscopic tools
- Grade certified to ASTM F136 for surgical implant applications
Marine & Offshore Industry
Titanium Grade 5 provides exceptional performance in chloride-rich marine environments:
- Submarine pressure hulls, deep-sea remotely operated vehicle (ROV) frames
- Propeller shafts, marine hardware, offshore riser components
- Seawater desalination plant components, heat exchanger tube sheets
- Offshore drilling equipment components exposed to brine and H₂S
Chemical & Petrochemical Processing
- Pressure vessel components, reactor internals, agitator shafts
- Pump shafts and valve stems in corrosive process streams
- Heat exchanger tube bundles for chloride and sulfuric acid service
- Piping and fittings for pharmaceutical and food processing
Power Generation
- Steam turbine blades and discs (low and intermediate pressure stages)
- Gas turbine compressor components
- Nuclear plant structural components (corrosion-resistant, low neutron absorption)
- Geothermal power plant hardware in high-temperature brine
Automotive & Motorsport
- Connecting rods, valve springs, and exhaust systems in Formula 1 and endurance racing
- Suspension components, fasteners, and roll cage elements for weight reduction
- High-performance exhaust headers and mufflers
Sporting Goods & Consumer
- Golf club heads, bicycle frames, and mountain bike components
- High-end watch cases and bracelet links
- Premium knife and tool handles where lightweight and corrosion resistance are valued
Testing, Inspection & Quality Certifications
Jade Special Metals follows a rigorous multi-stage quality control process for all Titanium Grade 5 bars. Our quality management system is aligned with international aerospace and industrial standards.
| Test Type | Method/Standard | Purpose |
|---|---|---|
| Chemical Analysis | ASTM E1941 / OES (Optical Emission Spectroscopy) | Verify elemental composition per ASTM B348 |
| Tensile Testing | ASTM E8 / ISO 6892-1 | UTS, yield strength, elongation, reduction of area |
| Hardness Testing | ASTM E18 (Rockwell), E10 (Brinell) | Surface hardness verification |
| Ultrasonic Testing (UT) | ASTM E2375 | Internal defect detection (voids, inclusions) |
| Eddy Current Testing | ASTM E309 | Surface and near-surface discontinuities |
| Dye Penetrant Testing (PT) | ASTM E1417 | Surface crack and porosity detection |
| Dimensional Inspection | ISO 286-2, ISO 1101 | Diameter, roundness, straightness per tolerance |
| Positive Material Identification | PMI (XRF) | Confirm alloy grade before shipment |
| Intergranular Corrosion Test | ASTM A262 | Verify corrosion resistance after thermal processing |
| Microstructure Examination | ASTM E112 | Grain size and phase distribution analysis |
| Macroetch Test | ASTM E381 | Identify segregation and unsound areas in bars |
Documents & Certifications Supplied:
- Mill Test Certificate (MTC / EN 10204 3.1 or 3.2 on request)
- Certificate of Conformance (CoC) per ASTM B348 / AMS 4928
- Chemical Analysis Report
- Mechanical Test Report
- Heat/Lot Number Traceability
- Country of Origin Certificate (for export to USA, EU — import duty compliance)
- Radiographic or UT inspection reports (upon request and for critical applications)
