Pipe Flanges from Mattsco: Your Partner for Reliable Solutions

You need a supplier you can depend on.

You need high-quality supplies that adhere to industry standards.

To keep your project on track, you need your order to be on time, every time.

Look no further than Mattsco.

Making sure that your processes are efficient, cost-effective, and completely stress-free is our number one priority.

We take pride in providing a wide range of standard and specialty flanges carefully crafted for your needs. By adhering strictly to the highest industry standards, our products will get the job done every time.

Types Of Flanges

Flanges play a crucial role in numerous industrial processes. There are many types available, each tailored to specific applications. Our extensive selection includes many options that can work for a wide range of projects and requirements.

Weld Neck Flange

These pipe connectors have a long, tapered neck that gets welded to the pipe. They provide a strong and leak-resistant joint. Often used in the oil and gas, chemical, and construction industries for connecting pipes, valves, and pumps, especially in high-pressure systems.

Blind Flange

A solid disk-shaped pipe fitting used to close the end of a pipe, valve, or vessel. It prevents flow and provides easy access for inspection or maintenance. These are used in industries like oil and gas, petrochemical, and water treatment.

Slip-on Flange

This is a type of pipe connector that slides over the pipe and then gets welded in place. It offers easy alignment and installation. Used for joining pipes and fittings by petrochemical, oil and gas, and water treatment professionals.

Threaded Flange

A pipe connector with internal threads that screw onto the pipe, providing a secure joint. It’s commonly used in industries like plumbing, water supply, and small-scale piping systems for connecting pipes, valves, and equipment.

Socket Weld Flanges

Pipe connectors with a recessed area for welding the pipe and providing a strong and leak-resistant joint. They are useful for chemical processing, oil and gas applications, and power generation for connecting small-bore pipes and high-pressure systems.

Lap Joint Flanges

Loose, non-integral flanges that slide over the pipe, allowing easy alignment during installation. They’re often used in industries like food processing, pharmaceuticals, and water treatment for low-pressure systems and applications where frequent disassembly is required.

Reducing Flange

Pipe connectors with different diameter ends, allowing the connection of pipes with different sizes. They find common applications in industries such as refineries, chemical plants, and petrochemicals, where piping systems require a transition in pipe size to accommodate changes in flow rates or equipment connections.

Available Flange Face Types

The type of face is a crucial factor to take into account, as it has an impact on the effectiveness of sealing and fitting. We offer various flange face types for your consideration:

Raised Face

A raised portion around the face that provides a surface for better sealing with gaskets. Commonly used in industries like oil and gas, chemical, and power generation where high-pressure applications require reliable sealing.

Flat Face

A flange face without any raised areas, used with full-face gaskets. Suitable for low-pressure applications and industries like water supply, plumbing, and general piping systems.

Ring Type Joint

A metal ring groove on the flange face, used with special metal gaskets for high-pressure and temperature applications. Commonly found in industries like oil and gas exploration, refining, and petrochemicals.

Flange Material Types

Which material to choose will depend on the intended application and the surrounding conditions. Our extensive selection caters to various needs in different environments.

Carbon Steel Pipe Flanges

Made from strong and affordable carbon steel. Widely used in oil and gas, water treatment, and construction industries to connect pipes and equipment.

Perfect for a wide range of applications, they are durable and cost-effective.

Our carbon steel flanges are available in:

  • A/SA105
  • SA105N
  • Fine Grain Practice

You can choose from low carbon steel (0.05% – 0.30% carbon), medium carbon steel (0.31% – 0.80% carbon), or high carbon steel (0.81% – 2.1% carbon) options to suit your specific project requirements.


Stainless Steel Pipe Flanges

Widely known for their exceptional resistance to corrosion, they are the perfect choice for a wide range of applications.

  • 304/304L
  • 316/316L
  • 304/H
  • 321/H
  • 347/H
  • 317/L
  • 310/S

Alloy Steel Flanges

Designed to withstand high pressures and temperatures, alloy steel is ideal for use across various sectors and industries such as oil and gas, chemical, and power production.

Types of Alloy Flanges

Alloy is made by combining steel with other elements for added strength. It is often used in the aerospace, automotive, and machinery manufacturing industries.

Our available types include:

  • Slip-on
  • Weld-neck
  • Blind flanges
  • Lap joint
  • Threaded
  • Socket weld flanges


A type of alloy, flanges made from nickel are known for excellent corrosion resistance. They are often used in chemical processing, marine equipment, and electronics.


Chrome flanges are widely used due to their improved hardness, strength, and resistance to wear and abrasion.

They are often used for automotive, plumbing, and decorative applications due to their added durability and shiny appearance.

Special Flanges and Fittings

We also offer more specialized flanges to meet unique needs. Available types include:

Long Weld Neck

This is a type of pipe connector with an elongated neck for smooth welding. It provides a strong and secure joint, often used in critical applications and high-pressure systems. Common industries utilizing this flange include oil and gas, chemical, and construction for connecting pipes, valves, and pumps.

Spectacle Flanges

Flanges with a unique design featuring a metal plate between two flanges, allowing flow diversion or flow interruption in pipelines. Commonly used in oil and gas, petrochemical, and chemical industries.

Orifice Flanges

These have a small opening or orifice to measure fluid flow or control pressure. Widely used in oil refineries, gas processing, and flow measurement applications.

Standard Flange Sizes & Dimensions

Our selection incorporates a wide range of sizes, ranging from 1/2″ to 36″ to ensure we have the right fit for any project. We also provide various pressure classes to meet your specific needs and requirements.

  • 150#
  • 300#
  • 600#
  • 900#
  • 1500#
  • 2500#

Choose Mattsco Supply Company: Your Reliable Partner for All Piping Solutions

With nearly 50 years of expertise, Mattsco stands as a leader in supplying premium pipes, fittings, and accessories.

What sets us apart is not just our quality products but also our unwavering commitment to providing expert guidance and support. Your success is our priority, and we’re here to assist you every step of the way.