Titanium Fasteners Manufacturer And Supplier in India

Titanium Fasteners Manufacturer and Supplier in Mumbai, India | Titanium Bolts and Nuts, Washers, Screws, Anchor Fasteners & Threaded Rods (ASTM B861)

Sanghvi Overseas manufactures titanium fasteners built for service conditions where stainless steel falls short. Bolts, nuts, studs, washers, and threaded rods produced here go into chemical reactors, offshore platforms, aerospace airframes, and subsea pipelines across more than 40 countries. Every fastener starts from sponge titanium sourced to ASTM specification, moves through forging and CNC thread rolling under one roof, and leaves with full material test reports and third-party inspection clearances. Buyers choose Sanghvi Overseas because the company holds stock in commercially pure and alloyed grades, handles emergency orders within 72 hours, and provides flexible customisation in dimensions, threading standards, and surface finish. There are no intermediaries or subcontracted production.

Sanghvi Overseas is an India-based titanium fasteners manufacturer, supplier, and distributor to engineering and procurement teams in global markets. We maintain a full stock of Titanium Grade 2, Grade 5 and Grade 7 fasteners, including bolts, nuts, screws, washers and hex heads from approved mills in standard and special sizes.

The material is non-magnetic and retains mechanical integrity from elevated to subzero temperatures. It has good corrosion resistance in most process environments, including acidic, chloride-rich and marine service conditions. Grade 2 is a commercially pure grade suited to moderate corrosion environments. Grade 5 (Ti-6Al-4V) is specified where structural load and tensile strength matter more. Grade 7 adds palladium to the base composition, extending performance into reducing acid environments.

Titanium work-hardens rapidly, so the speeds must be slower, the rigidity greater and the power input higher. Confirm specifications early for buyers with non-standard dimensional requirements. The alloy matrix consists of trace elements such as Carbon, Silicon, Nitrogen, Columbium and Vanadium, which contribute to yield strength and temperature performance depending on the grade.

Petroleum, marine, chemical processing, heat exchangers, pump shafts, pressure vessels, nuclear, and food processing are common applications. Sanghvi Overseas is ISO certified and supplies clients across the Middle East, Europe, and Southeast Asia.

Specification of Titanium Fasteners

Available Types of Titanium Fasteners

Bolts

Bolts

ASTM B861 Titanium Bolts, Titanium Hex Bolts, B862 Titanium U Bolts, Titanium J Bolt, Titanium Alloy Bolts Supplier, Titanium Bolts Exporter.

Nuts

Nuts

ASTM B861 Titanium Nuts, Titanium Heavy Hex Nuts, B862 Titanium Lock Nut, Titanium Alloy Square Nuts, Titanium Nuts Supplier, Titanium Nuts Exporter.

Washers

Washers

ASTM B861 Titanium Washers, Titanium Plain Washer, B862 Titanium Tooth Washers, Titanium Alloy Tab Washer, Titanium Washers Supplier, Titanium Washers Exporter.

Screws

Screws

ASTM B861 Titanium Screws, Titanium Hex Screws, B862 Titanium Coach Screws, Titanium Alloy Fully Threaded Screws, Titanium Screws Supplier, Titanium Screws Exporter.

Anchor Fasteners

Anchor Fasteners

ASTM B861 Titanium Anchor Fasteners, Titanium B862 Sleeve Type Anchor Bolts, Titanium Alloy Wedge Type Anchor Bolts, Titanium Anchor Fasteners Supplier, Titanium Anchor Fasteners Exporter.

Threaded Rods

Threaded Rods

ASTM B861 Titanium Threaded Rods, Titanium Alloy Metric Threaded Rod, Titanium Partially Threaded Rod, B862 Titanium Threaded Rods Supplier, Titanium Threaded Rods Exporter.

Equivalent Grades of Titanium Fasteners

Chemical Composition of Titanium GR2, GR5 and GR7 Fasteners

Titanium's base chemistry stays consistent across grades, with titanium making up the balance in every case. What changes grade to grade are the alloying additions and the permitted levels of interstitial elements. Aluminium in Grade 5 strengthens the alpha phase; vanadium stabilises the beta phase. Together they produce the dual-phase microstructure that delivers Grade 5's mechanical superiority. Palladium in Grade 7 acts as a cathodic depolariser, raising the corrosion potential of the alloy into the passive range even in oxidising-free acid environments. Iron and oxygen are controlled as trace elements across all three grades because elevated levels embrittle the material and reduce ductility below ASTM minimum requirements.

Mechanical Properties of Titanium Fasteners

Mechanical performance separates these three grades more clearly than any other attribute. Grade 2 and Grade 7 track closely in tensile and yield behaviour, both sitting in the 345 MPa tensile range, which reflects their near-identical base chemistry. Grade 5 doubles that figure. Elongation tells the inverse story: Grade 2 and Grade 7 stretch 20 to 30% before failure, making them more ductile and better suited to fatigue-prone assemblies with cyclic loading. Grade 5 elongates only 10 to 15%. Under dynamic loading, all three grades outperform austenitic stainless steel in fatigue cycles per unit stress because titanium's density is roughly 56% that of steel, reducing the inertial forces acting on each fastener during vibration.

Why Choose Titanium Fasteners?

The passive oxide layer on titanium is stable and self-regenerating. Minor surface damage does not lead to progressive corrosion, which is not the case with most steel alternatives in chloride or acid environments.

Grade 5 delivers tensile strength around 900 MPa, ahead of most austenitic stainless grades. The material is also non-magnetic after cold working, a specific requirement in subsea measurement equipment, MRI-adjacent infrastructure, and certain defence applications. At approximately 4.5 g/cm³, titanium fasteners are significantly lighter than stainless steel fasteners at 7.9 g/cm³, with no structural compromise.

As a reputed industrial steel products manufacturer, we maintain stock in standard sizes, handle emergency orders, and supply full mill test reports and third-party inspection documentation on request.

Applications of Titanium Fasteners

Chemical Industry

Chloride environments and acid solutions that attack 316 stainless steel fasteners within months cause no measurable corrosion on titanium Grade 2 or Grade 7 over service periods exceeding ten years. Reactor vessels, heat exchangers, piping flanges, and agitator assemblies in chlorine, sulphuric acid, and nitric acid service use titanium fasteners to eliminate the replacement cycles that add shutdown time and maintenance cost. Grade 7 handles reducing acid conditions where even standard commercially pure titanium may underperform. Buyers in pharmaceutical and petrochemical processing specify titanium fasteners because contamination from corroding fastener material into the process stream creates product quality and regulatory problems that outweigh the cost premium many times over.

Marine and Offshore Industry

Seawater corrodes carbon steel fasteners within months and attacks stainless grades through crevice corrosion at bolted joints. Titanium resists seawater corrosion at all practical temperature and salinity levels. Offshore platform structures, riser clamps, subsea connector bolting, shipbuilding hull fittings, and marine heat exchanger assemblies shift to titanium fasteners to extend maintenance intervals from months to multiple years. Reduced maintenance cycles matter most in offshore environments where access cost and operational risk during fastener replacement far exceed the material price difference at procurement.

Aerospace Industry

Grade 5 titanium fasteners deliver tensile strength above 895 MPa at a density of 4.43 g/cm3, compared to 7.85 g/cm3 for steel. Every kilogram saved in fastener weight on a commercial aircraft generates measurable fuel savings over the aircraft's operating life. Structural airframe joints, wing attachment fittings, engine pylon bolting, and landing gear assemblies use Grade 5 fasteners where the strength-to-weight ratio justifies the unit cost. Vibration resistance also improves because titanium's elastic modulus absorbs cyclic stress differently than steel, reducing fretting fatigue at structural joints.

Oil and Gas Industry

High-pressure pipeline flanges, wellhead bolting, subsea tree assemblies, and valve body studs in H2S-containing environments require fastener materials that resist sulphide stress cracking and crevice corrosion simultaneously. Titanium Grade 2 and Grade 5 fasteners meet NACE MR0175/ISO 15156 requirements for sour service applications. Subsea bolting at depths beyond 300 metres faces hydrostatic pressure, seawater exposure, and galvanic compatibility constraints that titanium handles without the cathodic protection systems often needed for steel fasteners in the same environments.

ASTM, ASME and ISO Standards for Titanium Fasteners

ASTM F468 specifies mechanical requirements such as tensile, yield, and proof loads for nonferrous bolts, hex cap screws, and studs, including titanium, by grade and diameter. ASTM F467 applies the same nonferrous scope to nuts. Together, they serve as the primary global reference for titanium fastener procurement. ASME B18 standards define dimensional and tolerance criteria for bolts, screws, studs, and nuts used in pressure equipment and piping, and buyers commonly demand B18 compliance alongside ASTM material certificates. ISO 898-1 covers mechanical properties for carbon and alloy steel fasteners, so for titanium, ASTM and ASME standards are more directly applicable, while ISO 9001 still validates the quality management system. Each titanium fastener batch ships with a mill test certificate and, when requested, third-party inspection, ensuring full material traceability for critical industries.

Lifecycle Performance and Durability of Titanium Fasteners

Titanium fasteners installed in marine, chemical, and offshore facilities since the 1990s remain in operation today with no documented corrosion-related failures at the fastener itself. This durability stems from titanium’s passive oxide film, which regenerates within milliseconds after any surface disturbance and remains stable in chloride-rich environments far beyond seawater salinity, unlike stainless steel’s film, which degrades at elevated temperature and chloride levels. Fatigue behaviour shows a similar advantage: at stress amplitudes that cause stainless steel fasteners to crack around 10 million cycles, Grade 2 titanium exceeds 100 million cycles in laboratory testing. Grade 5 supports even higher mean stresses, making it the preferred option for vibrating machinery and aircraft structures subjected to combined static and dynamic loading. In aggressive service, stainless fasteners typically need inspections every few years and replacement within 5–12 years, whereas titanium can extend service life to 20–30 years, significantly lowering lifecycle and access-related maintenance costs.

Manufacturing Process of Titanium Fasteners

Manufacturing begins with sponge titanium meeting ASTM B265 chemistry, confirmed by spectrographic testing before entering the forge shop. Hot forging then forms blanks at carefully controlled temperatures for each grade, with Grade 5 needing especially tight control to protect its alpha-beta microstructure. CNC machining creates the head shapes, shanks, and thread allowances, after which threads are rolled instead of cut. Rolling cold-works the thread root, adding compressive residual stress and boosting fatigue life. Where required by grade, heat treatment follows, then pickling in nitric-hydrofluoric acid to remove oxides. Final checks include dimensional, hardness, tensile, and visual inspections to ASTM and customer criteria.

Titanium Grade 2, Grade 5 and Grade 7 Fasteners Comparison

Choosing an unsuitable titanium grade has consequences beyond cost. Grade 2, a commercially pure titanium with about 345 MPa tensile strength, welds easily, forms well, and offers broad-spectrum corrosion resistance for moderate-strength duties.

Grade 5 (Ti-6Al-4V) is a high-strength structural titanium alloy above 895 MPa, widely used in aerospace and high-load fasteners, though its weldability is limited and often requires post-weld heat treatment.

Grade 7 closely matches Grade 2 in strength but incorporates 0.12–0.25% palladium, dramatically improving resistance to reducing acids. It withstands dilute sulphuric and hydrochloric acids where Grade 2 can pit. Higher palladium cost and limited availability mean buyers should verify lead times.

Use Grade 2 for most general industrial and marine duties. Choose Grade 5 where higher tensile loads apply, and select Grade 7 for acid-service conditions to avoid unexpected shutdowns and early replacements.

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