Steel Flange


Steel Flange Manufacturer to Rocket Your Business

  • Custom manufacturing to your specifications
  • Competitive pricing
  • Available in a wide variety of sizes and materials
  • Ideal for both low and high-pressure applications
tongue and groove flange

Don’t just take our word for it

Read why our customers come back to us time and time again!

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Who Is have seen that today there are also many flange companies in China & internationally. However, their solutions were still stuck a few years ago.
In fact, we have been upgraded in recent years, and hope our smart and flexible solutions can inject fresh blood into this market.

  • Recognized by Japanese customers who are well-known as strict with quality.
  • Participated in the formulation of Chinese Flange Industry Standards since 1998, which makes us the benchmark of this industry.
  • Our vertical integrated production lines make it possible to provide you with a higher quality flanges at less cost.
  • Babysitting ZERO experience flange importers. Focus more on your own business. Less struggling with importing issues.

Who Trust Us

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Over 530+ Companies Choose

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Far Above Average Quality

Despite the high cost, we stick to use best materials. That’s why our products can last for so many years.


10+ Patents We Obtained

Patent is recognition of our hard work. We would like to thank everyone who has helped us achieve this.


Worry-free After Sales Solution

No matter what concerns you may have, we will work with you every step of the way. 24/7 quick reply promised!


Steel Flange: All You Need to Know

When it comes to the world of pipe flanges, there is a lot of terminology and product specifications that can seem daunting at first. But once you have a good understanding of steel flange and steel fittings, it becomes much easier.

Steel flange is one of the most important steel pipe fittings. It can be used in a wide range of industries, such as steel flange for the oil and gas industry or steel flange for water treatment plants.

If you are looking for a steel flange, you have come to the right place. In this guide, we will discuss all the necessary information about steel flange. We’ll cover what steel flange is and how they are used in piping systems.

1. What Is a Steel Flange and Its Uses

A steel flange is a steel component that is used to connect pipes and tubes. It is a steel disk with a hole in the middle that is used to attach two pieces of pipe or tube. The steel flange is then welded or bolted to the pipe or tube.

Steel flange is used in many applications and industries. They are often used in industrial settings to connect a pipe or tube to the rest of the system. A steel flange is usually welded onto a steel pipe or tube but can also be bolted on. It has holes for bolts, so it does not have to be welded.

The steel flange is a very versatile component and can be used in many applications. Some of the most common uses for steel flanges include:

  • connecting pipes or tubes in an industrial setting.
  • connecting a pipe or tube to a valve or fitting.
  • connecting two pieces of pipe or tubing.
  • connecting steel flanges to steel pipe or tubing.
  • connecting steel flanges to steel valves and fittings.
  • connecting steel pipe or tube to other components such as hoses, pumps, compressors, and more.

The steel flange is a very important component in many industrial and commercial applications. Without steel flanges, it would be difficult to connect pipes and tubes in an efficient manner.

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2. Steel Flange Price

Steel flange price is one of the most important factors that you need to consider when purchasing steel flanges. The price of steel flanges can vary depending on the size, type, and brand of steel flange. It is important to shop around and compare prices to find the best deal.

The average price of steel flanges ranges from $0.50 to $75.00 per piece. However, the price can vary significantly depending on the size and type of steel flange. See below:

1 inch steel pipe flange$0.50 to $11.00
6 inch steel pipe flange$11.00 to $30.00
8 inch steel flange$14.00 to $37.00
12 inch steel flange$23.00 to $50.00
24 inch steel flange$47.00 to $75.00

When shopping for steel flanges, be sure to compare prices and find the best deal possible. You can save a lot of money by finding a good steel flange deal.

If you want an exact price for a steel flange, be sure to contact us at Oflange. We will be able to provide you with a price quote for the specific steel flange that you need.

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3. Steel Flange Suppliers

There are several steel flange suppliers that you can buy from. Steel flange suppliers can be found both online and offline. It is important to do your research before you buy steel flange so that you can find the best supplier for your needs.

Here are some of the places you can buy steel flange from:

Online Steel Flange Suppliers

You can buy steel flanges for sale from several steel flange suppliers online. Some of the most reputable suppliers of flanges online include:

Local Steel Flange Suppliers

If you are looking for a steel flange supplier in your area, you can search for one online or in the Yellow Pages. Local steel flange suppliers such as those sold flanges in Houston, Texas typically have a wider selection of steel flanges than online steel flange suppliers.

Steel Flange Auctions

Another place you can buy steel flange from is steel flange auctions. There are several steel flange auction sites online such as:

  • eBay
  • Steel Flange Wholesalers

If you want to save money on steel flanges, you should consider buying them in bulk from steel flange wholesalers. Some steel flange wholesalers sell steel flanges such as a steel tank flange and mild steel pipe flanges at discounted prices if you buy in bulk.

Steel Flange Manufacturers

Finally, you can also buy steel flanges from steel flange manufacturers. Steel flange manufacturers typically sell their steel flanges at a higher price than steel flange suppliers. However, the quality of steel flanges from steel flange manufacturers is usually better than those from steel flange suppliers.

Oflange is a global manufacturer of pipe flanges and has been in business for several years. We provide innovative and high-quality products for use in applications such as pipeline systems, oil wells, gas processing plants, and refineries.

Our mission statement is to manufacture high-quality, durable, and affordable products that will serve the needs of their customers.

We offer a wide variety of products, including:

  • Flange bolts and nuts.
  • Pipe flanges in various sizes and materials (steel or stainless steel).
  • Steel piping systems for use in commercial and industrial facilities.
  • Stainless steel piping systems for use in commercial, residential, and industrial facilities.

Wherever you are located, steel flanges are an important part of your steel pipe system. Finding the right steel flange supplier is essential to ensuring that you have a reliable and efficient steel pipe system in place.

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4. Types of Flanges Available in the Market Today

There are many types of flanges available in the market today all over the world (e.g., flanges in Houston, TX). The most common types are the slip-on flange, the weld neck flange, the socket weld flange, and the threaded flange.

Slip-On Flange

The slip-on flange is the simplest type of flange. It is a circular steel plate with a hole in the center that slips over the pipe, and it is held in place by bolts.

Weld Neck Flange

The weld neck flange is similar to the slip-on flange, but it has a long neck that is welded to the pipe. This type of flange is stronger and less likely to leak than the slip-on flange.

Socket Weld Flange

The socket weld flange is similar to the weld neck flange, but it has a shorter neck that is not welded to the pipe. This type of flange is easier to manufacture than the weld neck flange.

Threaded Flange

The threaded flange is a steel plate with screw threads on the outside that screws onto the pipe. This type of flange is not as strong as the other types of flanges, but it is easier to install and remove.

These are the most common types of flanges available in the market today. There are many other types of flanges available, such as the lap joint flange, the ring type joint (RTJ) flange, and the blind flange, but they are not as common as the ones listed above.

To learn more about steel flanges, visit our website at Oflange. We have a wide selection of steel flanges available and we can help you choose the right one for your application.

5. Factors Should Be Considered While Selecting a Steel Flange for a Particular Application

When selecting a steel flange for a particular application, several factors need to be considered. Below are some of the most important considerations:

Flange Type

There are many different types of steel flanges, so it’s important to select the right one for the job. Some of the most common types include slip-on, weld neck, and threaded.


The size of the steel flange needs to be matched with the size of the steel pipe that it will be attached to.

Pressure Class

The steel flange must have a pressure class rating equal to, or greater than, the steel pipe that it is being attached to.


Steel flange can be manufactured from various types of steel, so it’s important to select the right material for each application. Stainless steel flanges are becoming more popular because they have a high resistance to corrosion and rusting.

Temperature Rating

steel pipe must be matched with steel flanges that have an appropriate temperature rating. If the steel flange is not rated for the same temperature as the steel pipe, it could lead to failure.

It’s important to keep these factors in mind when selecting a steel flange for any application. By choosing the right steel flange, you can ensure that your project will be a success.

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6. How Can You Select the Right Size of a Steel Flange for Your Project

When selecting the right size steel flange for your project, you need to consider a few factors. Here are the key things to keep in mind:

Flange Size

The flange size is determined by the pipe diameter and the thickness of the flange. You need to make sure that the flange size is compatible with the pipe diameter and the bolt hole pattern.

Bolt Pattern

The bolt pattern is the arrangement of holes on the flange that correspond to the bolts that will hold it in place. There are a variety of patterns available, so you need to select one that matches your pipe configuration.

Pipe Thickness

The steel flange needs to be thicker than the pipe it is attached to provide a strong connection.

Type of Steel

There are different types of steel available, so you need to select one that is compatible with your project.

By taking these factors into account, you can ensure that you select a steel flange that is the right size and type for your project. If you are unsure of which flange to select, contact us at Oflange and we’ll be happy to help.

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7. 3 Special Care and Maintenance Tips for Steel Flanges

Steel flanges are often used in high-pressure and high-temperature applications. The steel flange must be properly cared for to ensure its longevity and optimal performance. Here are a few special care and maintenance tips for steel flanges:

#1 Use a Soft Cloth When Cleaning Steel Flanges

When cleaning steel flanges, use a soft cloth to avoid scratching the surface. Be sure to remove any dirt, grease, or oil from the flange before storing it.

#2 Store Steel Flanges in a Cool and Dry Place

It is important to store steel flanges in a cool and dry place when not in use. This will help to prevent steel flanges from rusting.

#3 Check Steel Flange for Damage Before Using

When steel flanges are not in use, it’s important to inspect them regularly for any damage. It is also a good idea to check steel flanges before using them to ensure they will be safe and effective when used.

By following these steel flange care and maintenance tips, steel flanges will last longer and work more efficiently.

8. How To Install a Steel Flange and the Common Problems Associated With It

When installing a steel flange, there are a few key things to keep in mind. Below are the steps you need to take to ensure a proper installation and the problems that can arise from an improper steel flange installation.

Clean and Dry Steel Flange

Before installing the steel flange, clean it with a soft cloth to remove any dirt or grease. Be sure to dry steel flanges completely before installing them on steel pipes in order to avoid corrosion. If steel flanges are not clean and dry, they may rust.

Apply Pipe Joint Compound to Steel Flange

When installing steel flanges, you need to apply a pipe joint compound to the face of the steel flange. This will help to create a strong seal between the steel flange and steel pipe. If a strong seal is not created, the steel flange may leak.

Install Steel Flange with Bolts

After applying the pipe joint compound to the steel flange, install it on the steel pipe using bolts. Be sure to tighten the bolts securely to ensure a good connection between the steel flange and steel pipe. If bolts are not tightened properly, the steel flange may loosen over time and could cause a leak.

If steel flanges are not properly installed, steel flanges can leak and cause a variety of problems such as rust, corrosion, and even failure. By taking the time to ensure steel flange installation is done correctly, steel pipe systems will last longer and perform better.

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9. Conclusion

Steel flange is a commonly used component in piping and steel fabrication. It is important to understand the different types of flanges and their applications, as well as the proper installation and welding techniques. With the right knowledge, you can ensure that your steel flange installations are safe and reliable.

If you’re looking for a steel flange, be sure to check out the selection at Oflange. We carry a wide range of steel flanges in various sizes and materials, so you can find the perfect fit for your needs. Contact us today to learn more!



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