Titanium end caps are corrosion-resistant pipe fittings designed to close and seal the ends of titanium pipes, tubes and piping systems. They are commonly used in process piping, heat exchangers, chemical equipment, seawater systems and other applications where high corrosion resistance, low density and reliable welded connections are required.

Titanium pipe caps can be manufactured in different shapes, sizes, wall thicknesses and material grades. Butt-welding caps provide a permanent connection by welding the cap directly to the pipe, creating a continuous and reliable closure for the piping system.

Compared with flat closures, formed end caps provide a more favorable geometry for distributing pressure-induced stresses in internally pressurized piping and vessels. The appropriate cap geometry and wall thickness should be selected according to the design pressure, temperature, pipe size, material grade and applicable engineering code.

Changsheng Titanium supplies titanium end caps in Grade 1, Grade 2, Grade 5, Grade 7, Grade 9, Grade 12 and other titanium or nickel-based alloys according to customer requirements.

Product Specifications

Item	Specification
Product Name	Titanium End Cap / Titanium Pipe Cap / Titanium Butt Welding Cap
Material	Titanium Grade 1, Grade 2, Grade 5, Grade 7, Grade 9, Grade 12 and customized grades
Manufacturing Standard	ASTM B363 and applicable customer specifications
Dimensional Standards	ASME B16.9 or applicable piping standard, where applicable
End Preparation	Butt-welding end / bevel according to applicable standard
Nominal Size	NPS 1/2"–24" and customized sizes
Outside Diameter	Approximately 21.3–610 mm for the listed standard sizes
Wall Thickness	According to pipe schedule, drawing or customer specification
Shape	Ellipsoidal, hemispherical, dished, conical and customized configurations
Manufacturing	Hot forming, cold forming, pressing, spinning, welding and machining according to size and design
Surface Finish	Pickled, sandblasted, polished or machined
Inspection	Dimensional, visual, chemical composition and applicable NDT inspection
Customization	Diameter, thickness, height, radius, material grade and end preparation

Note: Exact dimensions and wall thicknesses should be confirmed according to the applicable dimensional standard, pipe schedule, design requirements and customer drawings.

Standard Dimensions

The following table shows representative dimensions for titanium pipe caps based on the supplied size range.

NPS	Outside Diameter (mm)	Approx. Cap Height A (mm)
1/2"	21.3	25
3/4"	26.7	25
1"	33.4	38
1 1/4"	42.2	38
1 1/2"	48.3	38
2"	60.3	38
2 1/2"	73.0	38
3"	88.9	51
3 1/2"	101.6	64
4"	114.3	64
5"	141.3	76
6"	168.3	89
8"	219.1	102
10"	273.0	127
12"	323.8	152
14"	355.6	165
16"	406.4	178
18"	457.0	203
20"	508.0	229
22"	559.0	254
24"	610.0	267

Available Wall Thickness

Wall thickness can be supplied according to the corresponding pipe schedule or customer drawing.

Typical schedules include:

SCH 10S

SCH 40S

STD

SCH 80S

XS

SCH 160

XXS

Customized thickness

For titanium fittings, the actual available thickness range depends on the material grade, manufacturing process, size and production requirements.

Titanium Grades

Different titanium grades can be selected according to the service environment.

Titanium Grade	Typical Characteristics	Common Applications
Grade 1	Excellent ductility and corrosion resistance	Chemical processing, heat exchangers, general corrosion-resistant applications
Grade 2	Good balance of strength, ductility and corrosion resistance	Chemical, marine, seawater and process piping
Grade 5 (Ti-6Al-4V)	High strength-to-weight ratio	Aerospace, mechanical and high-strength applications
Grade 7	Enhanced corrosion resistance due to palladium addition	Severe chemical and reducing environments
Grade 9	Higher strength than commercially pure titanium with good corrosion resistance	Piping, aerospace and pressure applications
Grade 12	Improved strength and corrosion resistance	Chemical processing, heat exchangers and industrial equipment

Grade selection should be based on the actual process medium, concentration, temperature, pressure and service conditions.

Types of Titanium End Caps

Titanium end caps can be supplied in different geometries depending on the application and installation requirements.

Ellipsoidal End Cap

Ellipsoidal or elliptical caps provide a formed geometry suitable for pressure-containing equipment and piping systems.

They are commonly selected for applications where pressure resistance and controlled stress distribution are important.

Hemispherical End Cap

Hemispherical caps provide a smooth curved geometry with favorable stress distribution under internal pressure.

They are used in specialized pressure-containing equipment and fabricated titanium vessels.

Dished End Cap

Dished or torispherical-type caps provide a practical balance between structural performance, manufacturing requirements and overall equipment dimensions.

Conical End Cap

Conical caps are suitable for certain tanks, hoppers, vessels and piping systems where drainage, discharge or material flow is important.

Customized End Cap

For non-standard equipment, Changsheng Titanium can manufacture caps according to customer drawings, including special diameters, heights, radii, thicknesses and connection dimensions.

Key Features

Excellent Corrosion Resistance

Titanium forms a stable protective oxide film that provides excellent resistance to many corrosive environments, including seawater and selected chemical process media.

High Strength-to-Weight Ratio

Titanium offers high specific strength while maintaining a relatively low density compared with many conventional engineering metals.

Excellent Marine and Seawater Performance

Titanium is widely used in seawater, desalination and marine applications because of its excellent resistance to seawater corrosion.

Reliable Welded Connection

Butt-welding caps can be directly welded to titanium pipes, allowing the fabrication of permanent and corrosion-resistant piping systems.

Low Maintenance

The corrosion resistance of titanium can contribute to long service life and reduced maintenance requirements when the material is correctly selected for the service environment.

Custom Manufacturing

Dimensions, material grades, wall thicknesses, cap height, forming radius and end preparation can be customized according to engineering drawings.

Manufacturing Process

Titanium end caps are manufactured using controlled forming and fabrication processes selected according to the required diameter, wall thickness, geometry and material grade.

Typical Manufacturing Process

Titanium Plate/Material → Cutting → Forming → Heat Treatment if Required → Trimming → Beveling → Surface Treatment → Dimensional Inspection → NDT → Marking → Packaging

Depending on the product design, manufacturing methods may include:

Hot pressing

Cold forming

Hydraulic forming

Spinning

Welding

Machining

Edge trimming

End beveling

For larger or special-dimension caps, welded fabrication may be used according to the engineering design.

Welding and End Preparation

Titanium end caps intended for butt welding are supplied with suitable end preparation for installation.

Typical preparation may include:

Plain end

Beveled end

Customized weld preparation

Machined welding edge

Titanium welding requires controlled shielding with high-purity inert gas to prevent contamination and embrittlement of the weld and heat-affected area.

For critical piping systems, welding procedures and inspection requirements can be specified according to the applicable project code.

Quality Inspection

Changsheng Titanium can provide inspection according to the applicable material and customer requirements.

Material Inspection

Chemical composition analysis

Material grade verification

Heat/lot traceability

Material Test Certificate (MTC)

Dimensional Inspection

Outside diameter

Wall thickness

Overall height

Roundness

End preparation

Forming dimensions

Tolerances

Surface Inspection

Visual inspection

Surface cleanliness

Forming defects

Cracks

Scratches

Dents

Weld appearance where applicable

Non-Destructive Testing

Depending on the product and customer requirements:

PT – Liquid Penetrant Testing

RT – Radiographic Testing

UT – Ultrasonic Testing

Weld inspection

Other applicable NDT methods

Applications

Chemical Processing

Titanium end caps are used in corrosion-resistant piping and chemical process equipment handling aggressive process media.

Typical equipment includes:

Process piping

Heat exchangers

Condensers

Evaporators

Reaction equipment

Storage tanks

Seawater and Desalination

Titanium is widely used in seawater systems because of its excellent resistance to seawater corrosion.

Applications include:

Desalination equipment

Seawater heat exchangers

Seawater piping

Marine cooling systems

Condensers

Brine systems

Chlor-Alkali Industry

Titanium pipe fittings and closures are used in selected chlor-alkali process systems where titanium is compatible with the operating medium and process conditions.

Power Generation

Applications include selected condenser, cooling-water and heat-exchanger piping systems.

Oil and Gas

Titanium end caps can be used in specialized piping and process equipment where the material provides an appropriate combination of corrosion resistance and mechanical performance.

Metallurgy

Used in corrosion-resistant process piping and equipment in hydrometallurgical and metallurgical plants.

Pharmaceutical and Food Processing

Where material compatibility, corrosion resistance and cleanable surfaces are required, titanium fittings can be used in specialized process systems.

Titanium End Caps for Heat Exchangers

Titanium end caps are particularly suitable for heat-exchanger and condenser applications involving seawater, brine and other corrosive fluids.

They can be manufactured to match:

Titanium tubes

Titanium tube sheets

Titanium pipe

Titanium flanges

Titanium expansion joints

Custom heat-exchanger components

The cap geometry and connection dimensions can be manufactured according to the heat-exchanger drawing.

Packaging and Delivery

Titanium end caps are protected against contamination, deformation and surface damage during storage and transportation.

Typical export packaging includes:

Protective plastic wrapping

Individual surface protection

Internal separators

Anti-collision protection

Export-grade plywood cases or wooden crates

Packaging can be customized according to product size, quantity and transportation method.

Why Choose Changsheng Titanium?

Changsheng Titanium specializes in titanium and titanium alloy products for chemical processing, seawater, desalination, heat-exchanger and other corrosion-resistant industrial applications.

For titanium end caps, we can provide:

Multiple titanium grades

Standard and custom dimensions

Small and large diameter caps

Butt-welding configurations

Customized forming geometry

Surface treatment

Material certificates

Dimensional inspection

NDT inspection

Drawing-based manufacturing

Export-standard packaging

Our technical team can evaluate the material grade, pipe dimensions, operating medium, temperature, pressure and connection requirements to recommend a suitable titanium end-cap configuration.

Frequently Asked Questions

What is a titanium end cap?

A titanium end cap is a pipe fitting used to permanently close the end of a titanium pipe or piping section, usually by butt welding.

What titanium grades are available?

Common options include Grade 1, Grade 2, Grade 5, Grade 7, Grade 9 and Grade 12. Other grades and nickel-based alloys may be available depending on the application.

Are titanium end caps suitable for pressure piping?

Yes, titanium caps can be used in pressure-containing piping when properly designed, manufactured and qualified according to the applicable design code, material standard, dimensions and operating conditions.

What is the difference between a pipe cap and a flat plate closure?

A formed pipe cap provides a curved geometry that can distribute pressure-induced stresses more effectively than a simple flat closure. The appropriate configuration depends on the piping or vessel design.

Can you supply conical titanium caps?

Yes. Conical caps can be manufactured for tanks, vessels, hoppers and other equipment where a conical geometry is required.

Can you manufacture titanium caps according to drawings?

Yes. Custom titanium end caps can be manufactured according to customer drawings, including special diameters, thicknesses, heights, forming radii and welding dimensions.

What information is needed for quotation?

Please provide:

Titanium Grade + Pipe Size/OD + Wall Thickness + Cap Type + Dimensions + Quantity + Standard + Inspection Requirements

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