How to choose the grade of titanium round bar？

Titanium Round Rods
Titanium rods are rod-shaped materials made of titanium metal, a lightweight silver-grey metal with high strength, low density, excellent corrosion resistance and good biocompatibility. Therefore, titanium rods are widely used in aerospace, medical equipment, chemical equipment, sporting goods and other fields.
However, since there are various grades of titanium round rods to choose from, it can be overwhelming to choose the right titanium round rod. Bokang Titanium will help you understand the different grades of titanium round rods and their characteristics, making it easier to choose the right titanium round rod.

What are the grades of titanium round rods?
The specification grade of titanium round rods refers to the combination of different purity, mechanical properties and chemical composition in different application fields. These grades are mainly divided according to the type and quantity of other elements (such as aluminum, vanadium, etc.) contained in the alloy. High-specification titanium round rods show excellent corrosion resistance, high strength-to-weight ratio and good biocompatibility, so they are favored in aerospace, medical implants and chemical processing.

Specifically, grades 1 to 4 are considered commercially pure titanium with increasing levels of impurities, while grades 5 to 23 are classified as titanium alloys with different alloying elements. Each specification grade has unique physical and chemical properties that make it suitable for specific applications. For example, grade 5 titanium alloy is often used in the manufacture of aircraft components due to its high strength characteristics, while grade 2 titanium alloy is preferred for medical applications due to its good ductility.

Grade 1 Titanium Round Bar
Grade 1 Titanium Bar is the purest grade of titanium alloy, containing up to 99.5% titanium and no alloying elements. This property makes it ideal for applications with high strength, light weight and good corrosion resistance. Although it may not be as strong as other titanium alloy grades, grade 1 titanium alloy has better ductility and formability. Therefore, grade 1 titanium bar is widely used in chemical processing, marine engineering and aviation.

Grade 2 Titanium Round Bar
Grade 2 Titanium Bar is one of the most widely used titanium alloy grades, accounting for about 50% of all titanium alloy consumption. It contains about 99% titanium and trace alloying elements such as oxygen, iron and carbon. Grade 2 titanium is an ideal choice for applications that require moderate strength, excellent corrosion resistance, and good processing properties. This grade is widely used in the aerospace, medical device, and chemical processing industries.

Grade 5 Titanium Round Bar
Grade 5 Titanium Bar, also known as Ti-6Al-4V, is an alloy containing 6% aluminum, 4% vanadium, and 90% titanium. It is one of the most popular titanium alloys, known for its high strength-to-weight ratio, excellent corrosion resistance, and good manufacturing properties. Grade 5 Titanium Bar is widely used in aerospace, medical devices, and marine engineering.

Grade 9 Titanium Round Bar
Grade 9 Titanium Bar, also known as Ti-3Al-2.5V, is an alloy containing 3% aluminum, 2.5% vanadium, and 94.5% titanium. It is suitable for applications that require high strength, good corrosion resistance, and good weldability. Grade 9 Titanium Bar is also widely used in aerospace, medical devices, and marine engineering.

Grade 23 Titanium Round Bar
Grade 23 titanium round bar, called Ti-6Al-4V ELI, is an alloy containing 6% aluminum, 4% vanadium and very low interstitial atoms. It has similar properties to grade 5 titanium round bar, but with better fracture toughness and fatigue strength. Grade 23 titanium round bar is an ideal choice for applications that require high strength, excellent corrosion resistance and low weight. This grade of material has a wide range of applications in aerospace, medical devices and dental implants.

Factors to consider when choosing a titanium round bar grade
When choosing a suitable titanium round bar grade, the following factors need to be considered:

Application field:

Choose the appropriate grade according to the use scenario of the titanium round bar. For example, in medical devices, grades such as GR2 or GR5 with good biocompatibility and corrosion resistance are usually selected; while in the aerospace field, more attention is paid to the strength and toughness of the material, and high-strength titanium alloys such as GR5 or GR9 may be selected.

Mechanical properties:

including strength, hardness, toughness, etc. Different grades have different mechanical properties, so they need to be selected according to specific needs. For example, for applications that need to withstand high loads, grades with higher strength and hardness should be selected.
Corrosion resistance: Titanium round bars may be exposed to various corrosive media during long-term use, so grades with good corrosion resistance need to be selected. Pure titanium and titanium alloys such as GR1, GR2 and GR5 generally have excellent corrosion resistance.

Machinability:

Different titanium grades have different machinability. For example, some grades may be easier to cut, weld or bend. Therefore, the needs of subsequent processing of titanium round bars need to be considered when selecting.

Cost:

Different grades of titanium round bars have different prices. When selecting, it is necessary to consider cost factors and select a cost-effective grade while meeting performance requirements.

In summary, the selection of a suitable titanium round bar grade requires comprehensive consideration of multiple factors such as application areas, mechanical properties, corrosion resistance, machinability and cost. By comprehensively considering these factors, it can be ensured that the selected titanium round bar grade meets actual needs and has good performance.