Pressed heat-transfer plates and machined tubesheets place very different demands on titanium starting material. Thin sheet used for corrugated plates must perform reliably during forming, while tubesheet production requires plate stock suited to machining and the specified construction.

For heat exchanger OEMs, thickness variation, surface defects, and material dimensions can affect production before the equipment is assembled. These issues are best addressed when selecting titanium sheet, coil, or plate, before the material reaches the workshop.

1. Which Titanium Products Are Used in Different Heat Exchangers?

In a plate heat exchanger, thin titanium sheets are pressed into corrugated plates that form the heat-transfer passages. Manufacturers may start with individual sheets or flat-rolled coil, depending on their production equipment.

A shell-and-tube heat exchanger uses tubing for heat transfer and tubesheets to support the tube bundle. Tubesheets may be made from solid titanium plate, titanium-clad material, or another construction specified by the equipment design.

Plate-and-shell exchangers may use titanium sheet or plate in their heat-transfer cores. Immersion and coiled-tube exchangers, by comparison, generally rely on formed tubing.

Heat Exchanger Type	Main Component	Titanium Material	HWHG Material Relevance
Plate heat exchanger	Corrugated heat-transfer plates	Sheet, strip, or flat coil	Directly relevant
Shell-and-tube heat exchanger	Tubes and tubesheets	Tubing; solid or clad plate where specified	Relevant to selected plate components
Plate-and-shell heat exchanger	Formed plate pack	Sheet or plate	Depends on construction
Immersion or coiled-tube exchanger	Bent or coiled tubing	Titanium tube	Outside flat-coil applications

A titanium coil heat exchanger uses coiled tubing. This is different from flat titanium coil or strip supplied for pressing and sheet-metal processing.

2. Titanium Sheet and Coil Requirements for Pressed Heat-Transfer Plates

Corrugated heat-transfer plates are manufactured from flat titanium stock. Pressing creates raised features, narrow flow channels, and sealing areas, making the condition of the starting sheet important to production.

Titanium coil and flat sheets displayed alongside a corrugated heat transfer plate used in plate heat exchanger manufacturing.

Thickness and Dimensional Tolerances

Thickness variation matters when titanium sheet is pressed into a corrugated pattern. Blanks with the same nominal thickness may behave differently if their incoming tolerances or material conditions vary.

Pressing also stretches the material around tight features. These areas can become thinner than the original sheet, particularly where deformation is concentrated.

The finished thickness distribution must meet the plate design requirements. This makes incoming thickness tolerance an important purchasing specification, especially for plate patterns with demanding forming geometry.

Formability and Plate Pattern

Deep corrugations and tight radii increase deformation during pressing. Excessive strain in localized areas can lead to cracking or unwanted thinning.

For a new plate pattern, forming trials are more useful than relying on the titanium grade designation alone. They show how the selected sheet condition works with the actual tooling and plate geometry.

Once production is established, lot-to-lot consistency also deserves attention.

HWHG's integrated production system combines controlled cold rolling, annealing, and precision slitting to maintain consistent titanium coil specifications. Thickness control during rolling and width control during slitting help reduce dimensional variation within production batches, providing more consistent starting material for heat-transfer plate manufacturing.

HWHG's production equipment and processing facilities support dimensional control and consistent material quality.

Surface Condition

Not every visible mark on titanium sheet is a reason for rejection.

A minor cosmetic mark outside a critical area may be acceptable. A deeper scratch across a sealing surface or a heavily formed section is more concerning. Dents and embedded contamination may also interfere with forming or subsequent fabrication.

Inspection is easier before the sheet is pressed. Once corrugations have been formed, some defects become harder to distinguish from marks introduced during production.

For plate heat exchanger applications, HWHG's titanium product specifications list TA1G (TA1) / Grade 1 cold-rolled titanium sheet and coil under application code TMB00, with a thickness range of 0.4–0.8 mm and delivery condition M.

3. Titanium Plate for Tubesheets and Other Fabricated Components

Tubesheets support the tube ends in shell-and-tube heat exchangers and help separate the tube-side and shell-side fluids.

Unlike thin corrugated plates, tubesheets are generally thicker components with numerous machined tube holes. The starting material must accommodate the specified dimensions and fabrication method.

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Perforated metal tubesheet with multiple tube openings illustrating plate material requirements for shell-and-tube heat exchangers.

Solid Titanium Plate and Clad Tubesheets

For a solid titanium tubesheet, starting plate thickness and machining allowance need to be established before ordering. The supplied plate must provide enough stock to reach the finished dimensions after machining.

A titanium-clad tubesheet has different material requirements. Its corrosion-resistant titanium layer is bonded to a backing material, and the construction must meet the equipment specification.

Clad thickness and bond quality require particular attention. A specification suitable for solid titanium plate does not automatically cover a clad tubesheet.

Tube-to-Tubesheet Connections

Tube ends may be expanded, welded, or secured using a combination of methods defined by the equipment design.

For welded titanium connections, shielding and surface cleanliness are critical fabrication controls. Contamination during welding can affect joint quality.

The material specifications for tubes and tubesheets must also match the intended joining procedure.

Two relevant material standards are:

ASTM B265 — Titanium and titanium alloy strip, sheet, and plate.
ASTM B338 — Seamless and welded titanium and titanium alloy tubes for heat-transfer and condenser applications.

The OEM's equipment specification governs the finished tubesheet and its connections.

4. Titanium Material Considerations in Seawater and Chemical Service

Seawater Cooling Systems

Titanium plate heat exchangers are used in seawater cooling systems because of titanium's corrosion resistance in many chloride-containing environments.

One documented application is Alfa Laval's seawater-based district cooling installation in Copenhagen, which uses titanium plate heat exchangers.

Corrosion resistance does not prevent fouling. Biological growth, suspended solids, and deposits can restrict flow passages and reduce heat-transfer performance. These are operating and maintenance concerns even when the titanium itself remains suitable for the water chemistry.

For seawater applications, corrosion assessment should reflect the actual temperature, water chemistry, and local exposure conditions, particularly around crevices.

Chemical Processing Equipment

Chemical service requires closer attention to the process fluid. A titanium grade suitable for one chemical environment may perform differently when concentration, temperature, or contaminants change.

The material specification should be based on the fluid conditions contacting the component. General claims about titanium's corrosion resistance are not enough to establish compatibility with a particular chemical process.

HWHG's existing article, Does Titanium Rust?, covers the broader corrosion behavior of titanium.

5. What Heat Exchanger OEMs Should Include in a Titanium Material RFQ

Start with the component drawing or material specification. It gives the supplier a clearer basis for quotation than the finished heat exchanger model alone.

Component	Information for Material Procurement
Pressed heat-transfer plates	Titanium grade, standard, nominal thickness and tolerance, blank size or coil width, surface requirements, delivery condition
Machined tubesheets	Specified plate construction, starting thickness, overall dimensions, machining allowance, inspection requirements
Other fabricated plate components	Grade, standard, dimensions, material condition, relevant fabrication and surface requirements

Include the quantity, delivery format, and required material documentation.

For products ordered under ASTM B265 or ASTM B338, identify the applicable standard edition.

Material Quality Certificates and Traceability

HWHG can provide product quality certificates for supplied titanium materials. These documents record the material identification and applicable inspection results. Depending on the product specification, the information may include grade, dimensions, chemical composition, and mechanical test results.

The certificate provided for HWHG's cold-rolled titanium coil includes an important condition: it applies to the original whole-coil condition at the time of delivery. Without HWHG's written approval, the certificate cannot be used to confirm the quality of products made through further processing.

For a heat exchanger manufacturer, this distinction matters when the supplied coil is cut or pressed into heat-transfer plates. The certificate documents the incoming material covered by the original inspection; it is not a quality certificate for the finished plates.

The sample certificate identifies its material standard as GB/T 3622-2012. Documentation for other products or standards should be confirmed against the specific order rather than assumed to be identical.

HWHG also provides separate guidance on titanium heat numbers and traceability and titanium sheet and plate specifications.

Request Titanium Material From HWHG

HWHG supplies titanium sheet, plate, coil, and strip for industrial manufacturing applications.

For heat exchanger components, send your material specification or drawing, required quantity, and delivery format. If the material will be pressed into heat-transfer plates, include any requirements established during forming trials.

See the HWHG titanium product range for listed material forms and application information.

Technical References

Titanium for Heat Exchanger Manufacturing: Sheet, Coil, and Plate Requirements

How to Read a Titanium Mill Test Certificate

Titanium Heat Number Explained: How Material Traceability Works

Titanium Grade, Form, and Specification: What Affects a Quotation

Send Your Drawing or Specs, Get a Fast Material Quote