Ti 6al-4v Titanium Round Bar

Ti-6Al-4V titanium round bar, commonly known as Grade 5, is the most widely used α-β titanium alloy worldwide. Containing approximately 6% aluminum and 4% vanadium, it offers an excellent balance of strength, weight, corrosion resistance, and thermal stability.

As an engineering material, Ti-6Al-4V titanium round bar has high specific strength, excellent corrosion resistance and good processing adaptability, and is particularly suitable for fields with extremely high requirements for material performance. It is widely used in high-end manufacturing scenarios such as aviation engine parts, structural connectors, medical surgical instruments, ship propulsion systems, and precision industrial equipment.

Chalco 6al-4v titanium round bar specifications and certifications

Chalco's 6al-4v titanium round bars follow these specifications:

Chalco can also provide material certification according to EN 10204 3.1 or 3.2, as well as industry certifications such as AS9100, PED, NADCAP , etc.

Types of 6al-4v titanium round bars Chalco can provide

6al-4v forged titanium round bar

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  6al-4v forged titanium round bar Forged Titanium round bar is processed by free forging or die forging at high temperature. The material has dense structure and stable performance. It is suitable for the manufacture of bars with large size and high strength requirements.

The conventional diameter range of Chalco's forged 6al-4v titanium round bars is Ø60 mm to Ø600 mm, and the maximum size can reach Ø800 mm. It is suitable for occasions that require large size and high structural strength, such as aviation connecting shafts, pressure vessel components, metallurgical molds and other structural parts.

6al-4v rolled titanium round bar

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  Rolled titanium round bars are produced through hot or cold rolling, offering high dimensional accuracy and consistency—ideal for batch production of small to medium-sized specifications.

The common diameter range of rolled Titanium round bars is between Ø10 mm and Ø100 mm, with good surface condition and dimensional control. They are often used in the manufacture of parts with medium strength requirements, such as standard parts processing, precision shafts, medical non-implant parts, and equipment support structures.

6Al-4v extruded titanium round bar

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  Extruded titanium round bars are extruded by high-temperature dies, have good dimensional stability and uniform internal structure, and are suitable for small diameter bar manufacturing.

Extruded bars typically range from Ø6 mm to Ø60 mm in diameter and are ideal for producing slender, small-diameter parts such as fasteners, medical tools, electrode rods, and small aerospace components—where lightweight and precision are critical.

Features of Chalco gr5 titanium round bar

High strength

The density of Ti-6Al-4V titanium round bar is about 4.43 g/cm³, which is only 60% of steel, but its tensile strength is as high as 900-1100 MPa (depending on the heat treatment state). This means that under the same strength requirements, Titanium round bars can achieve more than 40% structural weight reduction .

Excellent corrosion resistance

Ti-6Al-4V titanium round bars are stable in most oxidizing and neutral corrosion environments, especially in seawater, chloride ion and high humidity environments. Actual test data shows that the corrosion rate of Ti-6Al-4V in 3% NaCl solution is less than 0.05 mm/a, which is much better than stainless steel . Click on the corrosion resistance of titanium to learn more about the corrosion resistance of titanium .

High temperature resistance

Ti-6Al-4V can maintain good strength and dimensional stability in an environment with a long-term use temperature of up to 400°C. It can still maintain more than 80% of its room temperature strength at 316°C, making it suitable for manufacturing engine parts, hot gas pipes and high-temperature fixtures.

Excellent processing performance

Although titanium alloys are generally difficult to machine, Ti-6Al-4V has relatively good cutting performance among titanium alloys. Its Brinell hardness is around 330–360 HBW (annealed state). With appropriate tooling and cooling conditions, stable machining can be achieved, making it suitable for CNC turning, drilling, milling and other processes.

The cutting tools should be tungsten carbide C1-C4 or cobalt-based high-speed cutting tools. Generally, its machining characteristics are similar to austenitic stainless steel. Ti 6AL-4v grade 5 titanium round bar stock can be machined using low speeds, high feed rates, rigid tools and the use of chlorine-free cutting fluids.

For high volume projects, stress relief heat treatment is recommended after rough machining to avoid machining distortion and improve dimensional stability.

Excellent fatigue strength performance

Ti-6Al-4V titanium round bar has excellent fatigue performance. Under polished surface conditions, its high cycle fatigue limit can reach 510-600 MPa, which is particularly suitable for important parts such as shafts and connectors that are subjected to periodic stress.

Mechanical properties of 6al-4v titanium round bar

Annealing state:

Solution plus aging ( STA) state:

Ti-6Al-4V has extremely high strength and rigidity while maintaining a relatively light density (about 4.43 g/cm³), which is about 40% lighter than stainless steel. In the annealed state, its tensile strength can reach more than 950 MPa and its elongation is about 14%, which can withstand high loads and has a certain toughness.

The performance can be further improved by heat treatment. Through solution treatment and aging (STA), the tensile strength of Ti-6Al-4V titanium round bar can be increased to 1035 MPa, which is suitable for key parts that require high fatigue strength, such as aviation connectors, orthopedic internal fixation bars, etc. The heat treatment state of the material (Annealed, Mill Annealed, STA) can be flexibly selected according to the application.

Industry application areas

Aviation

Used for airframe components, compressor blades and disks, rocket engine casings, helicopter rotor hubs, and high-strength fasteners.

Medical devices

For surgical tools, orthopedic plates/bars (non-implantable)

Industrial manufacturing

For shafts, fixtures, valve bodies, hydraulic system components

Marine engineering

Applicable to propeller shafts, deep-sea exploration equipment, and pressure vessel internals

Chalco UNS R56400 titanium round bar supply status and tolerance

Ti-6Al-4V titanium round bars can be provided in various specifications according to different processing methods and application requirements. We support the production of bars with diameters from 3 mm to 800 mm, and the length can be customized according to customer requirements. Small-sized bars are usually produced by extrusion or rolling, while medium and large-sized bars are produced by die forging or free forging to ensure that the internal structure of the material is dense and the performance is stable..

Product delivery status is divided into the following categories to meet different processing or use requirements:

• Black forged bars retain the forging oxide layer without turning, suitable for secondary machining or high-strength structural applications.
• Turned bars are rough-machined for uniform size and smooth surfaces, ideal for general-purpose machining.
• Polished bars are ground or polished to achieve surface roughness Ra < 0.8 μm, used in high-precision or appearance-critical applications.

We can perform h9 or h10 tolerance control according to customer drawings or standard requirements. For parts that require bearing fit, tolerance transition or clearance control (such as high-precision shafts, sliding connectors, instrument locating pins, etc.), precision lathe or polishing bars can be used directly on the machine, saving customers secondary processing costs.

Some batch orders support directional adjustment of processing technology to achieve tolerance adaptation within the IT8-IT10 accuracy range, and can provide value-added services such as dimensional inspection reports, surface roughness inspection, and geometric accuracy control.

Below is a table of tolerances for some dimensions:

Chalco 6al-4v titanium round bar stock

Chalco has a long-term stock of Ti-6Al-4V (Grade 5) titanium alloy round bars, with spot specifications covering a variety of diameters from 0.12 inches (3.05 mm) to 5.12 inches (130 mm), and a single standard length of 118.11 inches (about 3 meters). All stock products comply with international standards such as ASTM B348 and AMS 4928 .

All stock products support single-unit orders, which is convenient for sample verification, small batch trial products or spare parts replenishment. Conventional specifications can be shipped within 3 working days . If you need to confirm real-time inventory, dimensional accuracy or processing services, please contact us for quotation and technical parameters.

What Chalco can do

Quality inspection service

To ensure the reliable performance of each bar, we provide: ultrasonic testing (ASTM E2375), eddy current testing (ASTM E243), component analysis (XRF spectrum), microstructure testing, hardness and tensile test reports

Personalized processing service

In addition to standard bars, we also provide: cutting to length (±0.5 mm accuracy), rough turning, fine turning and cylindrical grinding, CNC machining, surface anodizing, sandblasting and other services.

We support one-stop custom production to reduce intermediaries and shorten delivery time.

Packaging and shipping

All Titanium round bars are packed with double-layer anti-oxidation vacuum film and reinforced wooden boxes to ensure that there is no scratch, oxidation or moisture damage on the surface during long-distance transportation.

Support international delivery methods such as FOB, CIF, DDP, and you can choose DHL, FedEx, UPS, air or sea transportation.

Price structure and purchasing advice

The price of Ti-6Al-4V titanium round bar is affected by the alloy smelting method (conventional ingot or VAR), specification size, heat treatment status and order quantity. Compared with stainless steel or aluminum alloy, the procurement cost is slightly higher, but it has significant advantages in performance life and strength-to-weight ratio.

Chalco supports small batch orders and provides tiered quotations. You are welcome to submit the size and purpose, and we will quickly match the inventory or make a production plan for you.

FAQ

Can you provide EN 10204 3.1 material certification?

Yes, all our Grade 5 Titanium round bars support 3.1 certification, and can provide 3.2 or third-party inspection reports (such as SGS, TÜV, etc.) upon request.

Do you support fine grinding of bars?

Yes. We provide polishing sticks with Ra0.2–0.8 μm level, which are suitable for high-precision matching or decorative needs.

What is the minimum order quantity?

Regular specifications support a minimum order of 1 piece. Customized specifications vary according to diameter and length. Please consult for specific MOQ.

Can you provide heat treatment status options for titanium round bars?

Yes, we can provide Ti-6Al-4V titanium round bars in annealed, mill annealed or solution aged (STA) states according to customer needs, suitable for different strength and processing requirements.

Do your titanium round bars meet aerospace or medical standards?

Chalco 's Grade 5 Titanium round bars meet aviation and medical standards such as AMS 4928, ASTM F1472, ISO 5832-3, and can provide certification support such as AS9100 and PED.

Can it be machined into custom sizes or CNC parts?

Yes, we support cut-to-length, rough turning, fine turning, polishing and CNC machining services, and can deliver semi-finished or finished parts according to drawings.

How long is the lead time?

Regular stock sizes can generally be shipped within 3 working days, and customized sizes or bulk orders can generally be shipped within 15-20 working days, depending on the complexity of the process.