TSM Technology supplies Ti-6Al-7Nb titanium bar (UNS R56700) for medical, orthopedic and surgical implant applications. As a wrought alpha-beta titanium alloy, Ti-6Al-7Nb combines high mechanical strength with the corrosion resistance required for long-term implant materials.
Ti-6Al-7Nb bars are available in customized diameters, lengths and surface conditions to ASTM F1295, customer drawings and project-specific technical requirements. Material certification, dimensional inspection and additional testing documentation are provided on request-see Quality Inspection & Certification below.
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What Is Ti-6Al-7Nb Titanium Bar?
Ti-6Al-7Nb (titanium-6aluminum-7niobium, Ti6Al7Nb) is an alpha-beta titanium alloy identified by UNS R56700. ASTM F1295 governs wrought Ti-6Al-7Nb products for surgical implant manufacture, defining chemical composition, mechanical properties and metallurgical requirements. The current edition, ASTM F1295-24, covers bar, wire and related product forms.
Compared with commercially pure titanium, Ti-6Al-7Nb delivers greater mechanical strength while retaining titanium's characteristic corrosion resistance and low density - properties that matter most where implant traceability and consistent composition are non-negotiable.
TSM Technology supplies Ti-6Al-7Nb bar to defined material and inspection requirements, machined to custom dimensions ready for downstream component manufacturing.
Ti-6Al-7Nb Titanium Bar Specifications
| Item | Specification |
|---|---|
| Product | Ti-6Al-7Nb Titanium Bar |
| Material | Ti-6Al-7Nb |
| UNS | R56700 |
| Standard | ASTM F1295 |
| Product Form | Round Bar |
| Diameter | 5–50 mm typical for medical-grade bar; larger sizes available on inquiry* |
| Length | Standard and custom lengths available |
| Delivery Condition | Annealed / as specified |
| Surface Finish | Ground, Polished, Machined, Pickled or as required |
| Manufacturing Process | Forged, Hot Rolled, Cold Worked or as specified |
| Testing | Mechanical Testing, Dimensional Inspection, UT / other testing as required |
| Certification | MTC / EN 10204 3.1 available |
| Application | Medical, Orthopedic and Surgical Implant Applications |
*Note on sizing: our general titanium bar production range extends up to 300 mm, but Ti-6Al-7Nb ordered against ASTM F1295 for implant use is typically supplied in smaller diameters suited to machining bone screws, plates and similar components. Confirm your exact size requirement with our team when requesting a quote.
Chemical Composition of Ti-6Al-7Nb
Ti-6Al-7Nb is a controlled medical titanium alloy. Typical specification limits include aluminum and niobium as the principal alloying elements, with controlled levels of tantalum, iron, oxygen, carbon, nitrogen and hydrogen. The balance is titanium.
| Element | ASTM F1295 Requirement* |
|---|---|
| Aluminum (Al) | 5.50–6.50% |
| Niobium (Nb) | 6.50–7.50% |
| Tantalum (Ta) | ≤ 0.50% |
| Iron (Fe) | ≤ 0.25% |
| Oxygen (O) | ≤ 0.20% |
| Carbon (C) | ≤ 0.08% |
| Nitrogen (N) | ≤ 0.05% |
| Hydrogen (H) | ≤ 0.009% |
| Titanium (Ti) | Balance |
*Reference values only - always verify against the current ASTM F1295 edition and the certified MTC for a given order.
Mechanical Properties
Ti-6Al-7Nb titanium bar is supplied in controlled material conditions to meet the mechanical and metallurgical requirements of the applicable specification.
For annealed material, commonly referenced minimum mechanical requirements include:
| Property | Minimum Requirement* |
|---|---|
| Tensile Strength | ≥ 900 MPa |
| Yield Strength | ≥ 800 MPa |
| Elongation | ≥ 10% |
*Mechanical requirements depend on the applicable ASTM F1295 edition, product size and condition. Final acceptance values should be confirmed against the applicable material standard and supplied MTC.
ASTM F1295 also requires lot-based tensile testing to verify these properties before release.
Available Sizes and Custom Ti-6Al-7Nb Bars
TSM Technology's titanium bar production range covers diameters from 6 mm to 300 mm for its general titanium bar supply, with customized dimensions available. The exact size range for Ti-6Al-7Nb under ASTM F1295 should be confirmed according to the required material condition, manufacturing process and order specification.
We produce and machine Ti-6Al-7Nb bar to the following customer-defined parameters:
- Diameter and diameter tolerance
- Length (standard or cut-to-size)
- Surface finish
- Heat treatment / delivery condition
- Machining allowance for further processing
- Testing scope (mechanical, UT, metallographic)
- Material certification level
- Export packaging requirements
For precision-machined medical components, customers can provide drawings or detailed technical specifications for review.
Medical Applications of Ti-6Al-7Nb Titanium Bar
Orthopedic Implants
Ti-6Al-7Nb bar is machined into orthopedic components including:
- Bone screws
- Bone plates and fixation hardware
- Joint replacement components
- Spinal implant components
- Other load-bearing implant parts
Dental Applications
The alloy is also used for select dental implant components where ASTM F1295 or equivalent specifications apply.
Surgical Implant Components
ASTM F1295 specifically addresses wrought Ti-6Al-7Nb for surgical implant manufacture, and the U.S. FDA recognizes ASTM F1295 as a consensus standard for medical devices.
Ti-6Al-7Nb vs Ti-6Al-4V
Both Ti-6Al-7Nb and Ti-6Al-4V are alpha-beta titanium alloys used in demanding applications, including medical applications. Their alloying systems and applicable medical standards are different.
| Item | Ti-6Al-7Nb | Ti-6Al-4V ELI |
|---|---|---|
| Alloy | Ti-6Al-7Nb | Ti-6Al-4V ELI |
| UNS | R56700 | R56401 |
| Main Alloying Elements | Aluminum + Niobium | Aluminum + Vanadium |
| Medical Standard | ASTM F1295 | ASTM F136 |
| ISO Standard | ISO 5832-11 | ISO 5832-3 |
| Typical Use | Surgical implant materials | Surgical implant materials |
| Product Forms | Bar, wire and other wrought forms | Bar, wire, plate and other forms |
ASTM F1295 identifies Ti-6Al-7Nb as UNS R56700, while ASTM F136 covers wrought Ti-6Al-4V ELI for surgical implant applications.
The appropriate alloy should be selected according to the implant design, applicable regulatory requirements, material specification and customer drawing rather than simply by comparing nominal strength.
Also supplying Ti-6Al-4V ELI bar? See our Ti-6Al-4V ELI Titanium Bar page →
Ti-6Al-7Nb Bar Manufacturing Capability
Our production flow for Ti-6Al-7Nb bar:
Raw Material Inspection → Billet Preparation → Forging / Hot Rolling → Heat Treatment → Straightening → Surface Machining → Grinding / Finishing → Inspection → Final Packaging
Forging and Hot Working
Billets are processed through controlled forging and hot-working to achieve target dimensions and metallurgical structure.
Rolling
Hot rolling produces intermediate or finished bar sizes to the required specification.
Heat Treatment
Heat treatment is controlled to the material specification and delivery condition; annealed Ti-6Al-7Nb bar is available on request.
Surface Conditioning
After forming and heat treatment, bars are ground, machined, peeled or polished to the required surface condition.
Final Inspection
Finished bars undergo dimensional and surface inspection, with mechanical, ultrasonic or other testing arranged per customer requirement.
Surface Finish Options
Ground
Polished
Machined
Pickled
Peeled
As-processed (where applicable)
For medical applications, specify surface condition together with diameter, tolerance, delivery condition and inspection requirements.
Quality Inspection and Material Certification
Because ASTM F1295 defines chemical, mechanical and metallurgical requirements for implant-grade material, inspection may include:
- Chemical composition analysis
- Tensile, yield strength and elongation testing
- Dimensional and surface inspection
- Metallographic / microstructure examination
- Ultrasonic and eddy current testing (where applicable)
- Heat treatment records and heat/lot traceability
Material Certification
Material Test Certificate (MTC)
EN 10204 3.1 certificate
Mechanical and chemical analysis reports
Inspection reports
Heat/lot traceability documentation
Additional documentation can be arranged for medical and implant-related projects - including ISO 13485-aligned supplier documentation where required.
Why Choose Ti-6Al-7Nb Titanium Bar?
High Mechanical Strength - Substantially stronger than commercially pure titanium, suited to structural implant applications.
Corrosion Resistance - A stable protective oxide layer resists corrosion across a wide range of physiological and environmental conditions.
Medical Implant Material - Produced to ASTM F1295, with defined chemical, mechanical and metallurgical requirements for surgical implants.
Controlled Material Quality - Full chemical analysis, mechanical testing, dimensional inspection and traceability available per purchase specification.
Custom Manufacturing - Custom diameters, lengths and surface conditions to drawings and technical requirements.
Packaging and Delivery
Ti-6Al-7Nb bars are packed to protect material during handling and international transportation
Packaging can be customized per customer requirement.
Frequently Asked Questions
What Is the ASTM Standard for Ti-6Al-7Nb Bar?
ASTM F1295 is the governing specification for wrought Ti-6Al-7Nb alloy (UNS R56700) used in surgical implant manufacture. The current edition is ASTM F1295-24.
What Sizes of Ti-6Al-7Nb Titanium Bar Are Available?
Medical-grade Ti-6Al-7Nb bar is typically supplied in smaller diameters suited to implant component machining; our general titanium bar range extends to 300 mm. Confirm your exact size with our team.
Can You Provide Material Certification?
Yes. MTC and EN 10204 3.1 certification, plus material traceability documentation, are available for applicable orders.
How Does Ti-6Al-7Nb Differ from Ti-6Al-4V ELI?
Both are alpha-beta titanium alloys used in surgical implants, but Ti-6Al-7Nb uses niobium instead of vanadium as its secondary alloying element and is specified under ASTM F1295 (vs. ASTM F136 for Ti-6Al-4V ELI).
Request a Quote for Ti-6Al-7Nb Titanium Bar
Looking for Ti-6Al-7Nb titanium bar (UNS R56700) for medical or surgical implant applications?
Send us your required diameter, length, quantity, ASTM F1295 edition, delivery condition, surface finish and inspection requirements, and we'll review your specification and return a quotation.
Email: info@tsm-titanium.com
Get a Quote for Ti-6Al-7Nb Titanium Bar
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