Titanium Elliptical Heads & Spherical Heads | Gr2/Gr7 Pressure Vessel Parts

Titanium Elliptical Heads and Spherical Heads for Corrosion-Service Equipment

Titanium elliptical heads and spherical heads are formed components used in pressure vessels, reactors, tanks, heat-exchanger shells and corrosion-service equipment. They are selected when the equipment needs lower weight than steel and better corrosion resistance in chloride, seawater or chemical-process environments.

These parts should be quoted from drawings or project specifications. Important RFQ details include material grade, head type, outside diameter, crown radius, knuckle radius, thickness, edge preparation, forming method, tolerance, inspection scope and certificate requirement.

Available Materials

Head Types and Drawing Requirements

Common supply forms include 2:1 elliptical heads, spherical heads, hemispherical heads, dished heads and drawing-based formed parts. Drawings should show diameter, thickness, edge straight flange, bevel or weld-preparation details, forming tolerance and any post-forming machining requirement. For replacement heads, the buyer should confirm mating vessel dimensions and whether existing welding procedures place limits on material grade or edge condition.

Common Applications

• Chemical reactors, separators and corrosion-resistant process vessels
• Heat-exchanger shells, tube-side chambers and tank ends
• Marine, desalination and chloride-service equipment
• Custom formed titanium parts for equipment manufacturers

Inspection and Documentation

Inspection scope should be agreed before quotation. Typical requirements may include dimensional inspection, visual surface inspection, material certificate, heat-number traceability, PMI, forming records, thickness checks and third-party inspection. If NDT, pressure-code documentation or project-specific acceptance criteria are required, include those requirements with the drawing package.

Packaging and Export Information

Formed heads need packing that protects sealing edges, bevels and visible surfaces from impact during export transport. Large heads may require wooden frames, edge protection, lifting-point planning and clear part-number marking for site receiving inspection.

RFQ Information Needed

• Material grade and applicable project specification
• Head type, diameter, thickness, radius and edge details
• Drawing, tolerance and forming route requirement
• Inspection, certificate and traceability requirements
• Quantity, destination, packing and delivery schedule

FAQ

What information is needed to quote titanium heads?

Send the drawing, grade, head type, diameter, thickness, edge preparation, quantity, inspection scope and certificate requirement. A drawing is strongly preferred because formed-head geometry controls quotation and production review.

Can Grade 7 be used for formed heads?

Grade 7 can be considered when the equipment operates in media where Ti-0.15Pd corrosion performance is required. The buyer should confirm the project specification and welding requirement before ordering.

How should inspection be defined?

Inspection should be written into the RFQ, including dimensional checks, material certificate, heat-number traceability, PMI, thickness measurement, NDT or third-party inspection when required by the project.

Procurement Notes for Formed Titanium Heads

For vessel-head procurement, quotation accuracy depends heavily on the drawing package. Buyers should confirm whether the head is a new design, a replacement part or a formed component that must fit an existing shell. If the head will be welded into pressure equipment, the RFQ should include the welding edge requirement, any code-related document request and the inspection hold points required by the project.

For large-diameter or thick-wall titanium heads, packing and handling should be planned before shipment. Edge protection, lifting support, part-number marking and moisture protection reduce the risk of damage during export transport and site receiving inspection.