Titanium Fasteners – The Complete Guide to Grade 2, 5, and 7 Bolts, Nuts & Studs
When weight reduction and corrosion resistance are equally critical, titanium fasteners deliver a combination that no steel can match. RAYCHIN LIMITED, a specialist global supplier of high-performance alloy fasteners, offers the complete range of Titanium Grade 2 (commercially pure), Grade 5 (Ti-6Al-4V), and Grade 7 (Ti-0.15Pd) bolts, nuts, washers, stud bolts, and custom-machined parts. This guide provides the technical depth engineers need to specify the correct titanium grade for every application.
Product Range
Titanium Grade 2 Bolts
Commercially pure. Excellent corrosion resistance for chemical and marine applications.
Titanium Grade 5 Bolts
Ti-6Al-4V. High strength (yield ≥880 MPa) with good corrosion resistance. Aerospace and motorsport standard[reference:11].
Titanium Grade 7 Bolts
Ti-0.15Pd. Enhanced corrosion resistance in reducing acids. Ideal for chemical processing.
Titanium Nuts & Washers
Precision-matched to corresponding bolts. Grade 2, 5, and 7 available.
Titanium Stud Bolts
Double-end and fully threaded. ASME B16.5 compliant. M6–M64 and 1/4″–2-1/2″.
Custom Titanium Parts
Special threads, non-standard heads, and precision-machined components per drawing.
Material Grades & Standards
Titanium vs Steel: Weight and Strength Comparison
Applications
- Aerospace & Defense: Airframe fasteners, engine components, and structural bolting where weight savings are critical.
- Medical: Bone screws, orthopedic implants, and surgical instruments (Grade 2 and Grade 5 biocompatible).
- Marine & Offshore: Seawater-exposed fasteners, subsea connectors, and desalination equipment.
- Chemical Processing: Grade 7 fasteners for reducing acid service and chloride environments.
- Motorsport & High-Performance Automotive: Lightweight engine and chassis fasteners.
- Sports Equipment: Bicycle components, marine hardware, and performance sporting goods.
Quality Assurance
- EN 10204 3.1 / 3.2 Material Test Certificates
- Chemical analysis and mechanical testing (tensile, yield, elongation)
- Hardness testing and microstructure verification
- Biocompatibility certification available for medical grades
- Third-party inspection upon request
Frequently Asked Questions
What are the most common titanium grades for fasteners?
Grade 2 (CP) for corrosion resistance, Grade 5 (Ti-6Al-4V) for high strength, and Grade 7 (Ti-0.15Pd) for enhanced corrosion resistance in reducing acids.
What is the tensile strength of Grade 5 titanium bolts?
Grade 5 achieves a minimum yield strength of 128,000 psi (880 MPa) and tensile strength of 950–1050 N/mm², comparable to class 10.9 steel but at ~45% of the weight[reference:12][reference:13].
Which standards cover titanium fasteners?
ASTM B348 (bar), ASTM F467 (nuts), ASTM F468 (bolts, screws, studs), AMS 4928 (Grade 5), and ISO 5832-2 for medical implants[reference:14].
Can titanium fasteners be used in seawater?
Yes, titanium offers outstanding seawater corrosion resistance, making it ideal for marine applications.
Does RAYCHIN provide material certificates?
Yes, EN 10204 3.1 / 3.2 and full mechanical test reports are provided with every shipment.
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