Titanium Grade 5
Bolt, Nut & Fasteners
Manufacturer Mumbai
What Is Titanium Grade 5
Of the roughly thirty-eight titanium grades registered with ASTM, Grade 5 (Ti-6Al-4V) accounts for the majority of titanium tonnage used worldwide — and it’s almost always the grade people mean when they simply say “titanium fastener.” It’s an alpha-beta alloy: 6% aluminium and 4% vanadium added to commercially pure titanium give it roughly double the strength of the unalloyed grades, while retaining titanium’s core advantages of low density and excellent corrosion resistance.
The appeal is the strength-to-weight ratio. A Grade 5 fastener delivers tensile strength in the same range as many alloy steels at roughly 60% of the weight, without the corrosion allowance steel needs in seawater, chlorides, or oxidizing acids. It’s also non-magnetic and has a low coefficient of thermal expansion relative to steel — properties that matter as much as raw strength in aerospace, subsea, and instrumentation applications.
Akbar Fasteners Pvt. Ltd. exports to over 50 countries, and our titanium range is manufactured under the same ISO 9001:2015 quality system and full mill test documentation as our stainless, duplex, and nickel alloy fasteners.
Where Grade 5 Genuinely Earns Its Cost
Roughly Half the Weight of Steel
At comparable tensile strength, Grade 5 fasteners weigh significantly less than steel equivalents — a genuine advantage where mass reduction directly affects performance or cost.
Excellent Seawater & Chloride Resistance
Titanium’s stable oxide layer resists pitting and crevice corrosion in seawater and chloride-rich environments without needing the alloying stainless relies on.
Non-Magnetic & Low Thermal Expansion
Useful in instrumentation, MRI-adjacent hardware, and precision assemblies where magnetic permeability or differential thermal expansion is a real design constraint.
Proven Aerospace Pedigree
Decades of flight-critical service history behind Ti-6Al-4V give buyers a well-documented fatigue and mechanical property track record to specify against.
Grade 5 vs Grade 2 vs Grade 23 vs Grade 7
“Titanium fastener” isn’t a single specification — the grade you actually need depends on whether the priority is raw strength, weldability, fracture toughness, or resistance to a specific reducing acid. The comparison below is the one we walk through with buyers before quoting, so the grade selected matches the real mechanical or corrosion requirement rather than defaulting to “Grade 5” by habit.
| Property | Grade 2 | Grade 5 | Grade 23 (ELI) | Grade 7 |
|---|---|---|---|---|
| Type | Commercially Pure (CP) | Alpha-Beta Alloy | Alpha-Beta, Extra Low Interstitial | CP + Palladium Addition |
| UNS Designation | R50400 | R56400 | R56401 | R52400 |
| Relative Tensile Strength | Moderate | High (~2x Grade 2) | High, slightly below Grade 5 | Moderate |
| Key Advantage | Excellent formability & weldability | Best all-round strength-to-weight | Higher fracture toughness, biocompatible | Superior crevice corrosion resistance |
| Typical Use Case | Piping, sheet, general corrosion service | Aerospace & general high-strength fastening | Critical aerospace, implant-grade applications | Reducing acid & crevice-prone chemical service |
| Relative Material Cost | Lower | Moderate-High | Higher (ELI processing) | Highest (Pd addition) |
Titanium Grade 5 Fastener Range
Titanium Grade 5 Bolts
Hex head, socket head cap, and flange bolts machined from solution-treated & aged bar stock.
Hex & NylockTitanium Grade 5 Nuts
Hex nuts, nylon-insert lock nuts, and flange nuts matched to metric and UNC/UNF thread series.
Threaded StudsTitanium Grade 5 Stud Bolts
Continuous and double-end studs to custom drawing length for flanged and structural joints.
Flat & SpringTitanium Grade 5 Washers
Flat washers and spring washers for weight-critical and corrosion-critical assemblies.
Titanium Grade 5 Technical Overview
Nominal Composition (Ti-6Al-4V)
- Aluminium (Al) 5.5 – 6.75%
- Vanadium (V) 3.5 – 4.5%
- Iron (Fe) max 0.40%
- Oxygen (O) max 0.20%
- Titanium Balance
Typical Property Range
- Tensile Strength 895 – 1035 MPa
- Yield Strength 828 – 910 MPa
- Elongation 10 – 14%
- Density ~4.43 g/cm³
- Testing MTC / NABL on request
Available Dimensions
- Metric Diameter M3 – M48
- Imperial Diameter 1/8″ – 2″
- Stud Length Custom to drawing
- Thread Type UNC / UNF / Metric
- Finish As-machined / Anodized
Application Areas
Wherever weight, corrosion life, or magnetic permeability rules out steel.
Aerospace & Airframe
where mass reduction matters
Marine & Subsea Hardware
exposed fastening
Motorsport & Performance
chassis and engine fastening
Chemical Processing
acid equipment fastening
Oil & Gas Subsea Equipment
subsea assembly fastening
Instrumentation & Precision Assemblies
for sensitive equipment
Sports & Bicycle Components
hardware fastening
Power & Process Plant
rotating equipment fastening
Standard Export Documentation
Prepared as standard practice for every titanium fastener shipment.
Mill Test Certificate (MTC)
Heat/lot number, chemical composition, and mechanical property verification for every batch.
Certificate of Conformance
Confirms the shipment matches the purchase order specification and grade in full.
Certificate of Origin (COO)
Confirms India as country of manufacture for destination customs purposes.
Commercial Invoice & Packing List
Itemized value, Incoterm, and detailed carton/weight breakdown for customs clearance.
NABL Accredited Test Reports
Independent mechanical and chemical testing available on request for critical applications.
Bill of Lading
Ocean or air freight shipping document confirming carrier, mode, and consignee details.
Internationally Recognised Standards Coverage
Related Fastener Grades & Materials
Hastelloy B-3 Stud Bolts
Nickel-molybdenum alloy fastening for reducing acid and severe chemical processing service.
View Hastelloy B-3 →Super Duplex Fasteners
High strength and severe chloride resistance at a lower cost than titanium, where applicable.
View Super Duplex →Stainless Steel 316 Fasteners
The economical corrosion-resistant starting point before stepping up to titanium or a nickel alloy.
View SS 316 →ASTM A193 Grade B8T Fasteners
Titanium-stabilized stainless for high-temperature service where full titanium isn’t needed.
View Grade B8T →Not Sure If
Grade 5 Is Right For You?
Tell us the environment, load case, or weight target — and we’ll help you confirm whether Grade 5, Grade 23, or another titanium grade is the right fit. Akbar Fasteners Pvt. Ltd. responds within 24 hours.
Sales: +91 724 0000 733 · Support: +91 800 9315 333 · sales@akbarfasteners.in