Titanium Screw Material Grades: How to Choose the Right Titanium Fasteners for Your Application
As a 33-year fastener manufacturer and exporter in China, we supply titanium screws for industrial, marine, chemical, aerospace, medical, electronics, and custom equipment applications. This guide explains the most commonly used titanium screw grades and helps you select the right material for your project.For finished products, you can also visit our Titanium Screws page.
Why Titanium Is Used for Screws and Fasteners
Titanium screws are selected when standard stainless steel, carbon steel, or aluminum fasteners cannot meet the application requirements. Compared with many common fastener materials, titanium offers an excellent balance of corrosion resistance, mechanical strength, and weight reduction. Main advantages of titanium screws include:
- Excellent corrosion resistance in seawater, chloride environments, and many chemical media
- High strength-to-weight ratio for lightweight engineering designs
- Good fatigue performance when properly designed and installed
- Non-magnetic properties for sensitive equipment and instruments
- Strong resistance to oxidation and many aggressive environments
- Long service life in demanding industrial applications
Because different titanium grades have different mechanical and corrosion properties, the correct grade should be selected according to working environment, load requirement, temperature, mating material, and industry standard.
If you are still comparing materials, our Titanium Screws Engineering Guide explains strength, corrosion, galling, torque, and installation considerations in more detail.
Common Titanium Screw Material Grades
The most common titanium grades used for screws and fasteners include Grade 2, Grade 5, Grade 7, Grade 12, and Grade 23. Each grade has its own advantages.
1. Grade 2 Titanium Screws
Grade 2 titanium is a commercially pure titanium grade. It is one of the most widely used titanium materials for corrosion-resistant screws and general industrial fasteners. Grade 2 titanium screws are often selected for applications where corrosion resistance is more important than maximum strength. They are commonly used in marine equipment, chemical processing, heat exchangers, desalination systems, and outdoor equipment.
Typical advantages of Grade 2 titanium screws:
- Excellent corrosion resistance
- Good ductility and formability
- Suitable for seawater and many chemical environments
- Good balance of performance and cost
- Easier to manufacture than some high-strength titanium alloys
Grade 2 titanium screws are a strong choice for buyers who need reliable corrosion-resistant fasteners for harsh environments.
Recommended related products: Titanium Socket Head Cap Screws, Titanium Machine Screws
2. Grade 5 Titanium Screws
Grade 5 titanium, also known as Ti-6Al-4V, is the most widely used titanium alloy. It contains aluminum and vanadium, giving it much higher strength than commercially pure titanium grades. Grade 5 titanium screws are commonly used when the application requires both high strength and low weight. This makes them suitable for aerospace components, racing parts, automotive performance equipment, high-end bicycles, industrial machinery, and precision assemblies.
Typical advantages of Grade 5 titanium screws:
- High tensile strength
- Excellent strength-to-weight ratio
- Good corrosion resistance
- Suitable for demanding mechanical applications
- Widely recognized titanium alloy for engineering use
Grade 5 is often the preferred grade when the screw must carry higher loads while keeping the assembly lightweight.
Recommended related products: Titanium Flat Head Cap Screws, Titanium Flange Screws
3. Grade 7 Titanium Screws
Grade 7 titanium is similar to Grade 2 commercially pure titanium but includes a small amount of palladium. This improves corrosion resistance in certain reducing acid and aggressive chemical environments. Grade 7 titanium screws are mainly used in chemical processing, acid handling equipment, pressure vessels, reaction systems, and other environments where corrosion resistance is critical. Advantages of Grade 7 titanium screws:
- Superior corrosion resistance compared with standard commercially pure titanium
- Excellent performance in many chemical processing environments
- Suitable for aggressive industrial media
- Good ductility and reliability
- Long service life in severe corrosion conditions
Grade 7 titanium screws are usually selected for specialized applications where standard Grade 2 titanium may not provide sufficient corrosion protection.
Recommended related products: Grade 7 Titanium Screws
4. Grade 12 Titanium Screws
Grade 12 titanium contains nickel and molybdenum, giving it improved strength and corrosion resistance compared with many commercially pure titanium grades. It is often used in industrial and heat-transfer applications. Grade 12 titanium screws are suitable for chemical equipment, marine hardware, heat exchangers, industrial piping systems, and high-corrosion environments where better mechanical properties are required. They are advantagous for:
- Good corrosion resistance
- Higher strength than many commercially pure titanium grades
- Suitable for marine and chemical environments
- Good performance in industrial service conditions
- Useful for equipment requiring both durability and corrosion resistance
Grade 12 can be a practical choice when the buyer needs stronger corrosion-resistant titanium screws but does not require the high strength level of Grade 5.
Recommended related products: Grade 12 Titanium Screws
Titanium Screw Grade Comparison
| Titanium Grade | Common Name | Main Advantage | Applications |
|---|---|---|---|
| Grade 2 | Commercially Pure Titanium | Excellent corrosion resistance | Marine, chemical, desalination, general industrial use |
| Grade 5 | Ti-6Al-4V | High strength and low weight | Aerospace, automotive, racing, machinery, performance parts |
| Grade 7 | Titanium-Palladium Alloy | Superior chemical corrosion resistance | Chemical processing, acid environments, severe corrosion service |
| Grade 12 | Ti-Ni-Mo Alloy | Good strength and corrosion resistance | Marine, chemical equipment, heat exchangers, industrial systems |
If you need help choosing between these materials, please contact us with your drawing, standard, working environment, and quantity requirement.
How to Choose the Right Titanium Screw Grade
For B2B buyers, the best titanium screw grade depends on the actual working condition, not only the product name. Before confirming the material, we recommend checking the following points:
1. Corrosion environment: Is the screw exposed to seawater, chloride, acid, alkali, chemicals, humidity, or outdoor weather?
2. Mechanical load: Does the screw need high tensile strength, fatigue resistance, vibration resistance, or lightweight performance?
3. Industry application: Marine, chemical, aerospace, medical, electronics, and automotive applications may require different grades and inspection levels.
4. Mating materials: Titanium may contact stainless steel, aluminum, carbon fiber, copper alloy, or other metals. Galvanic corrosion should be considered in some assemblies.
5. Thread and installation conditions: Titanium fasteners may require suitable lubrication, surface treatment, or anti-galling measures during installation.
6. Required standards and certificates: Buyers may require material certificates, chemical composition reports, mechanical test reports, inspection reports, RoHS, REACH, or other documents.
For installation and design details, see our Titanium Screws Engineering Guide. For industry use cases, visit our Titanium Screws Applications page.
Titanium Screw Applications by Material Grade
Different industries usually prefer different titanium screw grades.
1) Marine and Offshore Applications
For seawater and marine environments, Grade 2 and Grade 12 titanium screws are commonly selected because of their corrosion resistance. They are used in marine equipment, boat hardware, offshore instruments, desalination systems, and underwater assemblies.
Related products: Titanium Socket Head Screws, Titanium Flat Head Screws.
2) Chemical Processing Applications
For chemical equipment, Grade 2, Grade 7, and Grade 12 titanium screws are often considered depending on the chemical medium and temperature. Grade 7 may be selected for more aggressive corrosion environments.
Related products: Grade 7 Titanium Screws
3) Aerospace and Lightweight Engineering
For aerospace, UAV, racing, and high-performance mechanical applications, Grade 5 titanium screws are widely used because of their high strength-to-weight ratio.
Related products: Titanium Hex Socket Screws
4) Medical and Precision Equipment
Grade 23 titanium screws are often used in medical-related and precision applications where high reliability and material traceability are required.
Related products: Grade 23 Titanium Screws
5) Custom Titanium Screw Manufacturing
We manufacture and export titanium screws according to customer drawings, samples, or international standards. Available options include different head types, drive types, thread types, lengths, diameters, surface finishes, and material grades.
Common titanium screw types include:
- Titanium socket head cap screws
- Titanium button head screws
- Titanium hex head screws
- Titanium self tapping screws
- Titanium non-standard fasteners
We support OEM and custom titanium screw production for industrial buyers, distributors, equipment manufacturers, and project contractors. If you are looking for a reliable China titanium screw manufacturer, please send us your drawing, material grade, size, quantity, and application environment. Our engineering and sales team will help you select the proper titanium grade and manufacturing process.
FAQ: Titanium Screw Material Grades
What is the most common titanium grade for screws?
Grade 5 titanium, also known as Ti-6Al-4V, is one of the most common titanium alloys for high-strength screws. Grade 2 titanium is also widely used when corrosion resistance is the main requirement.
Are Grade 2 titanium screws strong enough?
Grade 2 titanium screws are suitable for many corrosion-resistant applications, especially in marine and chemical environments. However, if the application requires higher mechanical strength, Grade 5 titanium screws may be a better choice.
What is the difference between Grade 2 and Grade 5 titanium screws?
Grade 2 is commercially pure titanium with excellent corrosion resistance and good ductility. Grade 5 is a titanium alloy with much higher strength and a better strength-to-weight ratio.
Which titanium grade is best for marine screws?
Grade 2 and Grade 12 titanium screws are commonly used for marine and seawater-related applications. The final selection depends on load, design, temperature, and service environment.
Which titanium grade is best for chemical industry screws?
Grade 2, Grade 7, and Grade 12 titanium screws are commonly considered for chemical industry applications. Grade 7 may be selected for more severe corrosion environments.
Can you manufacture custom titanium screws?
Yes. We manufacture custom titanium screws according to drawings, samples, standards, and application requirements. Please send the size, material grade, quantity, surface finish, and drawing for quotation.
Need help choosing the correct titanium screw grade?
Contact us with your drawing, required standard, material grade, size, quantity, and working environment. As an experienced fastener manufacturer and exporter in China, we can provide titanium screw solutions for industrial buyers, distributors, OEM manufacturers, and engineering projects.