PIPE CAPS & END CAPS

TIGHT FIT • GALVANIZED • PLATING AVAILABLE

metal end caps for pipe

Pipe End Cap Manufacturer

Wedge Products has supplied pipe end caps to the pipe, boiler, and tubing industries for over 50 years. As one of the trusted metal stamping companies in Ohio, we manufacture plain-end O.D. pipe caps designed to fit securely over the exterior of the pipe rather than inserting into the opening. Available in steel, stainless steel, and aluminum, our pipe end caps are produced as durable one-piece units in nominal sizes ranging from .540″ to 12.750″ diameter.

Known for having one of the tightest fits on the market, Wedge pipe caps are manufactured with a three-lobed offset built into our forming dies. Most sizes can be galvanized upon request, and custom options are available to meet specific application requirements.

Pipe Cap Size Selector — Wedge Products

Pipe Cap Size Selector

O.D. Caps — Plain End Pipe, Boiler & Tubing. Most sizes available in galvanized upon request.

Select a size above to view part numbers Or click "View Full Size Chart" to see all available caps.

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steel pipe end caps
metal end caps

Special caps, belt & groove are available upon request!

Wedge Pipe End Caps are Available in Carbon Steel, Stainless Steel and Aluminum.

Need Help Finding the Right Pipe Cap?

Send us your pipe size, material, quantity, and finish requirements. Wedge can help match your project to a standard or custom pipe end cap.

Pricing on Metal Pipe Cap | Working with Wedge Products

Another difference between steel and aluminum is cost. Generally, aluminum costs about three times more than steel, which may affect decision making in choosing metal tube end caps for your facility.

Here at Wedge Products, we are happy to provide you with a quote on metal end caps so you can determine the best choice for your business and application. Wedge Products has supplied stainless steel square end caps and other types of metal end caps to the pipe, boiler, and tubing industries for more than five decades. We have varying sizes and choices for our metal tube end caps and can work with the customer to find the perfect fit.

All of our metal pipe cap products are outside diameter pipe caps, which means that they fit on the outside of the piping instead of fitting into the opening. We are confident in our metal pipe cap products that have the tightest fit on the market. This, in part, is thanks to our three-lobed offset built into our forming dies. We are eager to work with you on your metal tube end caps, and create a product that exceeds expectations. Contact us today to get started.

O.D. Caps – Plain End Pipe, Boiler & Tubing

Most sizes available in galvanized upon request. Check out our range of sizes below.

YOUR NOMINAL PIPE SIZE YOUR O.D. SIZE PART NUMBER STEEL (1008) PART NUMBER ALUMINUM (3003) PART NUMBER STAINLESS (304)
1/4″ .540 6038 916 6038.S
.625 6018 933 6018.S
3/8″ .675 6019 934 6019.S
1/2″ .840 6000 913 6000.S
.875 6020 935 6020.S
1.000 6021 917 6021.S
3/4″ 1.050 6001 914 6001.S
1.125 6022 918 6022.S
1.250 6023 919 6023.S
1.3125 6024 920 6024.S
1″ 1.315 6002 915 6002.S
1.375 6025 921 6025.S
1.500 6026 922 6026.S
1.625 6027 923 6027.S
1 1/4″ 1.660 6003 900 6003.S
1.750 6028 924 6028.S
1.875 6029 925 6029.S
1 1/2″ 1.900 6004 901 6004.S
2.000 6030 926 6030.S
2.125 6031 927 6031.S
2.250 6032 928 6032.S
2″ 2.375 6005 902 6005.S
2.500 6033 929 6033.S
2.750 6034 930 6034.S
2 1/2″ 2.875 6006 903 6006.S
3.000 6035 932 6035.S
3.250 6036 931 6036.S
3″ 3.500 6007 904 6007.S
3 1/2″ 4.000 6008 905 6008.S
4″ 4.500 6009 906 6009.S
4 1/2″ 5.000 6010 907 6010.S
5″ 5.563 6011 908 6011.S
6″ 6.625 6012 909 6012.S
8″ 8.625 6013 910 6013.S
10″ 10.750 6014 911 6014.S
12″ 12.750 6015 912 6015.S

F.O.B.: Wedge Products, Inc.
Terms: Net 30 Days with approval.
Lead time for items not in stock: 4-6 weeks.
Prices and lead times are subject to change without notice.

FAQs About Metal Pipe Caps

Pipe end caps are exactly what they sound like. They are custom fittings that cover the ends of metal pipes, but why do you need to cover a pipe end?

The central purpose of a pipe is to transport liquids, gases, and other materials for a wide variety of industries. Industrial pipes in particular are vulnerable to dust, debris, and many forms of damage, so pipe caps are designed to protect the pipe ends and keep the interior clean.

Installing a steel pipe cap will protect the pipe end from cracks, chips, and splits. This will also keep materials from getting damaged or becoming contaminated during transport through the pipe. Wedge also offers a selection of grease and axle caps, which are automotive components that offer similar functionality.

Our pipe end caps come in a variety of materials including steel pipe end caps, stainless steel end caps, aluminum pipe end caps, and plastic pipe caps. We can manufacture our pipe cap products to the exact shapes and dimensions you need while using the highest quality materials available.

Fabricators of all types of piping throughout the industry have used our caps to protect ends and keep out dirt and other foreign material. Pipes caps from Wedge end caps always arrive at your project site in perfect condition, so they are ready to install right out of the box. With convenient external grips, Wedge pipe cap installation is quick and easy. Simply fit the cap on the end of the pipe, seal it as tightly as possible, and you are ready to go!

Here at Wedge, we have found that deep draw stamping is the best method for producing metal pipe caps. Our deep draw stamping services involve a full range of forming methods to create the ideal pipe cap for your application.

Deep draw stamping is a sheet metal forming process that offers high levels of efficiency and precision. “Deep draw” refers to the dimensions of these parts, which have greater depth than width. Given the standard dimensions of metal piping, deep draw stamping is the clear choice for pipe cap manufacturing.

This process is significantly more cost effective than turning metal parts, and it greatly reduces overall waste production. Turned parts are a common solution for several metal stamping projects, and it offers many unique benefits in the proper situations. However, it requires significantly more raw materials than deep draw stamping, resulting in increased costs, scrap, and waste materials. Most importantly, it is much less eco-friendly than deep draw stamping.

With Wedge deep draw stamping, we can create the exact pipe caps you need in the most environmentally friendly way possible. Our forming methods include side piercing, bottom piercing, rib forming, coining, and many more, so we can accurately meet your unique project requirements.

Wedge offers pipe caps in steel, galvanized, stainless, aluminum, copper, brass, and other materials to meet diverse application and performance requirements.

Steel End Caps

Steel end caps are a durable choice for general-purpose sealing and protection in industrial and structural piping systems.

Carbon Steel Pipe End Caps

Carbon steel pipe end caps offer high strength and impact resistance, making them ideal for high-pressure and heavy-duty applications.

Stainless Steel Pipe Caps

Stainless steel end caps for pipes resist corrosion and chemical exposure, making them well-suited for sanitary, marine, and process piping systems.

Aluminum Tube End Caps

Aluminum tube end caps are lightweight and corrosion-resistant, commonly used in aerospace, automotive, and light-duty applications.

Copper Pipe Caps

Copper caps are often used in plumbing and HVAC systems due to their excellent thermal conductivity and resistance to corrosion.

Brass Pipe Caps

Brass pipe caps offer strong corrosion resistance and are ideal for decorative, low-pressure, or potable water systems.

If your company is searching for pipe end cap suppliers, it is beneficial to understand the different materials used to produce pipe caps. Steel pipe caps, for example, are different from aluminum tube end caps and other end cap material. Factors such as strength, cost, and formability all play a role in final application. Steel and aluminum are both widely used materials in all types of manufacturing, especially metal stamping, thanks to their durability and machinability. When it comes to looking for metal end caps or a metal pipe cap, it’s important to know the main differences between steel and aluminum tube end caps.

Aluminum is known to be more malleable and elastic than steel. For certain shapes and applications, aluminum has to be used because it can undergo more intricate spinnings. While this may not be a problem when looking for stainless steel square end caps, it could affect manufacturing decisions for other parts or components. Steel, however, is extremely strong and has high tensile strength. That is part of the reason why steel cannot be manipulated as much as aluminum, because it has a higher strength and lower formability. Steel also weighs more due to its makeup, so you may find that a steel pipe end cap is heavier than other types of metal end caps.

A pipe cap is commonly referred to simply as a “cap.” It is a fitting used in piping systems to cover the end of a pipe. The primary purpose of a pipe cap is to close the end of a pipeline, providing protection to the interior of the pipe from external elements and preventing the escape of fluids or contaminants.

End caps for pipes, commonly referred to as pipe caps, operate by securely covering and sealing the open end of a pipe. These fittings serve several essential functions within piping systems. Primarily, they provide a reliable closure, creating a tight seal that prevents the escape of fluids, gasses, or contaminants from the interior of the pipe. This sealing action is critical for preserving the integrity and functionality of the entire piping system.

In addition to closure and sealing, end caps offer protective features. By covering the open end, they act as a barrier against external elements such as dirt, debris, and moisture. This protection is crucial for safeguarding the interior of the pipe against environmental factors that could compromise the quality or performance of the materials being conveyed.

Furthermore, end caps contribute to the prevention of corrosion. By effectively sealing the pipe, they help maintain a controlled internal environment, reducing the risk of corrosion that may occur when metal pipes are exposed to air and moisture.

Another key function of end caps is to facilitate inspection and maintenance activities. In certain applications, end caps are designed to be easily removable, allowing for convenient access to the interior of the pipe. This feature proves valuable when periodic inspection, cleaning, or maintenance is necessary for the optimal functioning of the pipeline.

The process of using end caps involves selecting the appropriate cap for the pipe size and type, ensuring a proper fit, and then securely attaching the cap to the open end. Attachment methods may include threading, welding, or other fastening mechanisms, depending on the design of the cap and the specific requirements of the piping system.

In essence, the effectiveness of end caps lies in their ability to create a secure and reliable seal, ensuring that the closed end of the pipe remains protected and isolated from the external environment. Variations in design, materials, and attachment methods cater to the diverse needs of different industries and applications.

Threaded Pipe Caps:

Select the Appropriate Cap: Choose a threaded pipe cap that matches the size and thread type of the pipe.

Clean the Threads: Ensure that the threads on both the pipe and the cap are clean and free from debris.

Apply Thread Sealant (if needed): If required, apply a suitable thread sealant or tape to the threads on the pipe. This helps create a tight seal and prevents leaks.

Screw On the Cap: Place the threaded pipe cap onto the open end of the pipe and hand-tighten it initially.

Use a Wrench (if necessary): If additional tightening is needed, use a wrench to securely tighten the cap onto the pipe. Exercise caution to avoid over-tightening, which could damage the threads.

Welded Pipe Caps:

Prepare the Pipe End: Ensure that the end of the pipe is clean and free of any contaminants or irregularities.

Select a Welded Cap: Choose a welded pipe cap that matches the size and specifications of the pipe.

Fit the Cap onto the Pipe: Place the welded cap onto the open end of the pipe, ensuring a snug fit.

Weld the Cap: Perform the welding process to permanently attach the cap to the pipe. This requires welding equipment and expertise in welding procedures.

Inspect the Weld: After welding, inspect the weld for quality and completeness. Ensure that the cap is securely and fully attached to the pipe.

Pipe Caps:

Design: Pipe caps are typically domed or hemispherical in shape, covering the end of the pipe with a curved surface.

Sealing Mechanism: Caps are designed to provide a complete seal around the circumference of the pipe. They fully enclose the end, protecting it from external elements and preventing the escape of fluids or contaminants from the pipe.

Applications: Caps are commonly used when a secure and comprehensive closure is required. They are suitable for applications where the pipe’s end needs protection, and a watertight or airtight seal is essential. Caps are often threaded or welded onto the pipe.

Pipe Plugs:

Design: Pipe plugs are typically cylindrical or conical, featuring a tapered design that allows them to fit into the pipe opening.

Sealing Mechanism: Plugs are designed to seal the interior of the pipe by fitting into the pipe opening. They may have a threaded or a push-fit design, and some types have an expanding mechanism to create a secure seal.

Applications: Plugs are used when the focus is on sealing the inside of the pipe rather than covering the end. They are commonly employed in testing, maintenance, or temporary closure scenarios. Plugs may be inserted into the pipe opening and tightened or expanded to create a secure seal.

Our large diameter steel pipe end caps are engineered to provide a secure seal and long-lasting protection for pipelines of all sizes. Designed with durability in mind, these steel pipe end caps resist corrosion and maintain structural integrity under demanding conditions, making them ideal for industrial and commercial applications.

Using large diameter steel pipe end caps helps maintain cleanliness and protect bevels or finished edges, which reduces the need for rework. In industries like oil and gas, infrastructure, or heavy construction, caps like these support project efficiency by preventing costly delays from damaged pipe ends.

In addition to large diameter steel pipe end caps, we offer a variety of metal end caps and steel pipe caps to accommodate both standard and custom piping needs. Each cap is precision-crafted to ensure a snug fit, preventing leaks and protecting your system from debris and contaminants.

Choosing the right steel pipe end caps and metal end caps is essential for maintaining pipeline efficiency and reducing maintenance costs. Properly fitted steel pipe caps help protect the system, extend its lifespan, and ensure reliable performance across a wide range of applications.

Organizations around the world have been depending on Wedge Products for high-quality metal components since 1933. We are an ISO 9001:2015 certified metal stamping company, meaning we have proven our ability to create reliable products. In fact, we have developed complex components for military and commercial aircraft, so you can trust us to get the job done right.

Our 110,000 square foot manufacturing facility houses state-of-the-art metal stamping equipment, allowing us to work with a comprehensive selection of materials at nearly any thickness. If you are looking for metal end caps for pipes or any other metal stamping services, get in touch with us today. Our technical staff will be happy to answer your questions and help you get started on your project.

An Aerospace Certified Stamper

An Aerospace
Certified Stamper

Certified to AS9100 Rev. D, Wedge Products is an experienced aerospace parts manufacturer providing stamped metal components to the aerospace, military and industry.

The Pipe Caps You Need

Prevent damage and contamination with pipe caps designed for precise, dependable fit.