Titanium Grade 5 Round Bar: Properties, Specifications and Industrial Buying Guide
Titanium Grade 5 Round Bar Titanium Grade 5 round bar is one of the most widely used titanium alloy products in demanding engineering and industrial applications. Also known as Ti-6Al-4V, Ti-6-4 or UNS R56400, this alloy combines high mechanical strength, relatively low density and good corrosion resistance.
Industries such as aerospace, marine engineering, chemical processing, power generation and high-performance manufacturing use Titanium Grade 5 when components require a favourable strength-to-weight ratio and reliable material performance.
For buyers, selecting the correct Titanium Grade 5 round bar involves more than confirming the alloy name. Product dimensions, manufacturing condition, applicable specifications, mechanical properties and material test documentation must all match the intended application.
This guide covers the important properties, specifications, applications and procurement considerations for Titanium Grade 5 round bars.
What Is Titanium Grade 5?
Titanium Grade 5 is an alpha-beta titanium alloy containing approximately 6% aluminium and 4% vanadium. It is commonly designated Ti-6Al-4V and identified by UNS R56400.
Aluminium acts as an alpha stabiliser, while vanadium acts as a beta stabiliser. This combination gives the alloy its characteristic balance of strength, toughness and processing flexibility.
Common designations:
- Material name: Titanium Grade 5
- Alloy designation: Ti-6Al-4V
- UNS number: R56400
- Common trade description: Ti-6-4
- European material number: 3.7164 / 3.7165, depending on product and specification
Titanium Grade 5 is available in different product forms, including round bars, billets, plates, sheets, forgings and other forms, subject to the applicable specification and manufacturer.
For material identification, always use the designation and specification stated in the purchase requirement rather than relying only on a commercial name.
Chemical Composition of Titanium Grade 5
The chemical composition of Titanium Grade 5 is controlled by the applicable material specification.
A commonly referenced composition range is shown below.
| Element | Composition by weight (%) |
|---|---|
| Aluminium (Al) | 5.50–6.75 |
| Vanadium (V) | 3.50–4.50 |
| Iron (Fe) | 0.40 maximum |
| Oxygen (O) | 0.20 maximum |
| Carbon (C) | 0.08 maximum |
| Nitrogen (N) | 0.05 maximum |
| Hydrogen (H) | 0.015 maximum |
| Titanium (Ti) | Balance |
These limits are a general reference. The applicable product specification and its revision determine the actual acceptance requirements.
Why are aluminium and vanadium important?
Aluminium: Aluminium stabilises the alpha phase and contributes to the alloy’s strength and high-temperature characteristics.
Vanadium: Vanadium stabilises the beta phase and helps provide the alloy’s useful combination of strength and processing characteristics.
The controlled balance of these elements contributes to the mechanical performance of Ti-6Al-4V.
Mechanical Properties of Titanium Grade 5
Titanium Grade 5 is selected for applications requiring high strength without the weight associated with many conventional engineering alloys.
Its mechanical properties depend on product form, dimensions, heat treatment and supplied condition.
The following are representative minimum values commonly associated with annealed Ti-6Al-4V bar specifications. They are not universal guaranteed values for every product.
| Mechanical property | Representative value |
|---|---|
| Tensile strength | 895 MPa minimum |
| 0.2% yield strength | 828–830 MPa minimum |
| Elongation | 10% minimum |
| Density | Approximately 4.43 g/cm³ |
| Modulus of elasticity | Approximately 114 GPa |
Always check the exact specification and MTC for the material being purchased. Different product forms and specifications may require different mechanical-property limits.
1. High strength-to-weight ratio
One of the main reasons engineers select Titanium Grade 5 is its ability to provide high mechanical strength at a relatively low density.
This is valuable in components where reducing weight without compromising the required strength is an important design objective.
2. Corrosion resistance
Titanium Grade 5 develops a stable protective oxide film on its surface. This contributes to its corrosion resistance in many environments.
However, corrosion performance depends on the fluid chemistry, temperature, concentration, crevice conditions and other service factors. Suitability should be checked against the actual operating environment.
3. Fatigue performance
Titanium Grade 5 is used in components exposed to repeated loading. Fatigue performance depends on material condition, surface finish, stress concentration, manufacturing quality and operating conditions.
Designers should use applicable fatigue data rather than assume a single value applies to every component.
4. Relatively low density
With a density of approximately 4.43 g/cm³, Titanium Grade 5 is significantly lighter than many common steel alloys.
This makes it attractive for engineering applications where weight reduction is important.
Physical Properties of Titanium Grade 5
Some commonly referenced physical properties include:
| Property | Approximate value |
|---|---|
| Density | 4.43 g/cm³ |
| Modulus of elasticity | 114 GPa |
| Melting range | Approximately 1,600–1,660°C |
| Thermal conductivity | Approximately 6–7 W/m·K near room temperature |
Values may vary with temperature, material condition and reference source. Use manufacturer data for engineering calculations.
Applications of Titanium Grade 5 Round Bar
Titanium Grade 5 round bars are used to manufacture components that require high strength, reduced weight and suitable corrosion resistance.
1. Aerospace engineering
Aerospace applications include:
- Aircraft structural components
- Engine-related components
- Fasteners
- Machined fittings
- Selected rotating and load-bearing parts
The alloy’s strength-to-weight ratio makes it valuable in applications where weight reduction is a major engineering requirement.
Aerospace applications usually involve specific AMS or other customer-approved material requirements. A general commercial grade designation alone is not sufficient for aerospace acceptance.
2. Marine engineering
Titanium alloys are considered for selected marine components because of their corrosion resistance and strength.
Potential applications include:
- Marine equipment components
- Selected shafts and machined parts
- Fasteners
- Specialised fluid-handling components
The suitability of Grade 5 should be assessed against the seawater exposure, crevice conditions, galvanic interactions and component design.
3. Chemical processing
Chemical-processing facilities use titanium materials in selected equipment and components where corrosion resistance and mechanical performance are important.
Applications may include:
- Machined equipment components
- Selected fittings
- Industrial fasteners
- Specialised mechanical parts
The exact chemical environment must be evaluated before specifying the alloy.
4. Power generation and industrial engineering
Titanium Grade 5 is used in selected power-generation and industrial engineering applications requiring high strength and weight efficiency.
Potential component uses include machined parts, fasteners and specialised equipment components.
5. High-performance manufacturing
The alloy is also used in high-performance automotive, sporting and precision-engineered components where strength and weight are important design considerations.
Important Specifications for Titanium Grade 5 Round Bars
The applicable specification depends on the product form, manufacturing condition and intended application.
Some commonly referenced specifications include:
| Standard | General scope |
|---|---|
| ASTM B348 / B348M | Titanium and titanium alloy bars and billets |
| AMS 4928 | Ti-6Al-4V bars, forgings and forging stock in specified conditions |
| AMS 4965 | Ti-6Al-4V bars, forgings and forging stock in solution-treated and aged condition, subject to the specification |
| ASME SB-348 | ASME-adopted requirements for titanium and titanium alloy bars and billets |
These standards are not interchangeable. The purchaser should identify the exact standard, grade, condition and revision required by the engineering drawing or purchase order.
For official standard scope and revisions, refer to ASTM International and the applicable ASME material requirements.
For manufacturer-specific alloy information, consult the ATI Ti-6Al-4V technical data.
Titanium Grade 5 Annealed and Solution-Treated and Aged Conditions
Titanium Grade 5 is supplied in different conditions depending on the product specification and intended application.
Annealed condition
Annealed Ti-6Al-4V is widely used where a balance of strength, toughness and ductility is required.
The annealing treatment and resulting properties must comply with the applicable product specification.
Solution-treated and aged condition
Solution treatment and ageing can be used to achieve a different mechanical-property balance.
The resulting strength depends on the treatment parameters, section size and manufacturing route.
Buyers should specify the required condition rather than assume that all Titanium Grade 5 products have identical mechanical properties.
Titanium Grade 5 Round Bar vs Other Product Forms
The required product form depends on the component design and manufacturing process.
Round bar: Commonly used for machining shafts, fasteners, pins, fittings and other cylindrical components.
Plate: Used for selected structural and machined components.
Sheet: Used for components requiring thinner material sections and suitable forming operations.
Billet and forging stock: Used as starting material for further manufacturing processes, subject to the relevant specification.
The standards for bars and billets are not automatically applicable to plates, sheets or other forms.
What Buyers Should Check Before Purchasing Titanium Grade 5 Round Bar
Selecting the correct material is essential for avoiding specification mismatches and procurement delays.
1. Confirm the grade designation
Specify Titanium Grade 5 / Ti-6Al-4V / UNS R56400 as required by the project.
Do not confuse standard Grade 5 with Grade 23 ELI (UNS R56407), which has different interstitial-element requirements and is a separate material designation.
2. Specify the product dimensions
Provide:
- Required diameter
- Required length
- Number of pieces
- Dimensional tolerances
- Surface finish, where specified
3. Mention the applicable specification
Clearly state whether the requirement is ASTM B348, an applicable AMS specification or another approved project standard.
4. Confirm the material condition
Mention whether the requirement is annealed, solution-treated and aged, or another specified condition.
5. Request the Material Test Certificate
Depending on the order requirements, review the MTC for:
- Grade and UNS designation
- Heat or lot identification
- Chemical composition
- Mechanical test results
- Applicable material specification
- Supplied condition
6. Check traceability and inspection requirements
If the project requires PMI, additional mechanical testing, dimensional inspection or third-party inspection, include these requirements in the purchase order.
7. Confirm availability and delivery requirements
Product form, dimensions, condition and documentation should be confirmed against the actual enquiry before order placement.
Titanium Grade 5 Round Bar Supply Enquiries at Manan Steel & Metals
Manan Steel & Metals supplies specialty metals and stainless steel products for industrial and engineering requirements.
For Titanium Grade 5 enquiries, buyers can share their required dimensions, quantity, applicable specification and material condition for review.
Enquiries may include:
- Titanium Grade 5 round bars
- Ti-6Al-4V / UNS R56400
- Titanium Grade 5 for machined components
- Titanium Grade 5 for industrial and engineering applications
The required product form, dimensions, material condition, documentation and availability should be confirmed against the specific enquiry.
For related product information, visit our round bar supplier page and stainless steel round bar page.
You can also refer to our round bar weight chart for preliminary dimensional and weight calculations.
Request a Titanium Grade 5 Quotation
Looking for Titanium Grade 5 round bars for aerospace, marine, chemical-processing or industrial engineering requirements?
Share the following details with Manan Steel & Metals:
- Grade: Titanium Grade 5 / Ti-6Al-4V / UNS R56400
- Required diameter and length
- Quantity
- Applicable ASTM or AMS specification
- Material condition
- Required mechanical properties
- MTC and inspection requirements
- Delivery location
Manan Steel & Metals
Website: https://manansteel.com/
Email: sales@manansteel.com
Phone: +91 98198 76962
Frequently Asked Questions
1. What is Titanium Grade 5 also known as?
Titanium Grade 5 is also known as Ti-6Al-4V, Ti-6-4 and UNS R56400.
2. What is the chemical composition of Titanium Grade 5?
It contains approximately 6% aluminium and 4% vanadium, with titanium as the balance. The exact permitted composition is controlled by the applicable material specification.
3. What is the density of Titanium Grade 5?
Its commonly referenced density is approximately 4.43 g/cm³. The value is useful for preliminary engineering calculations.
4. Is Titanium Grade 5 stronger than commercially pure titanium?
Titanium Grade 5 is an alloy developed for higher mechanical strength than commercially pure titanium grades. The exact comparison depends on the specific grade, product form and condition.
5. Which ASTM specification is used for Titanium Grade 5 round bars?
ASTM B348/B348M covers titanium and titanium alloy bars and billets, including Grade 5 UNS R56400. Confirm the required revision and condition before ordering.
6. What is the difference between Titanium Grade 5 and Grade 23?
Grade 5 is UNS R56400. Grade 23 is Ti-6Al-4V ELI, identified by UNS R56407, with extra-low interstitial requirements. They should not be treated as interchangeable.
7. Is Titanium Grade 5 suitable for marine applications?
It can be considered for selected marine applications. Suitability depends on the seawater conditions, component design, crevice exposure and other service factors.
8. What documents should buyers request when purchasing Titanium Grade 5?
Buyers should confirm the required Material Test Certificate, chemical composition, mechanical test results, heat or lot identification and compliance with the specified material standard.
9. What information is required for a Titanium Grade 5 quotation?
Provide the grade, dimensions, quantity, applicable specification, material condition, documentation requirements and intended application.
For Titanium Grade 5 round bar enquiries, contact Manan Steel & Metals at sales@manansteel.com or +91 98198 76962.
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