Stainless steel flanges are essential for making leak-proof connections in pipes. Manufacturers offer a wide variety of these, covering different shapes, sizes, and grades of stainless steel. These flanges are made to meet demanding standards. Because of this wide range, you can find the correct flanges whether the application is common or very complex.
Think of pipes that need to be connected – that’s where flanges come in. Stainless steel flanges are like strong, metal rings that bolt pipes together, making sure nothing leaks out. They’re made of stainless steel, so they don’t rust easily and can handle a lot of pressure.
Top 10 Stainless Steel Flanges Manufacturers List
Name | Founding Year |
Penn Stainless Products | 1949 |
Kerkau Manufacturing | 1951 |
Bonney Forge | 1876 |
Ningbo MHC Machinery CO LTD | 2018 |
Jianglin Steel | 2003 |
Metline Industries | 2014 |
Coastal Flange | 1986 |
Texas Flange | 1986 |
Sandvik | 1862 |
Viraj Profiles Limited | 1992 |
Penn Stainless Products
Year Founded: 1949
Main Products
- Stainless steel sheet
- Stainless steel plate
- Stainless steel bar
- Stainless steel structural forms
- Stainless steel pipe and tubular products
- Stainless steel fittings and flanges
Company Description
Penn Stainless Products, located in Quakertown, Pennsylvania, started out as a fabrication business named Schrader’s Stainless. The company changed hands in 1979, focusing instead on distributing and processing stainless steel items. Back then, everything happened in a small 5,000 square foot space on Route 309.
Because of well-managed growth, Penn Stainless needed more room and moved to a bigger place in Trumbauersville, Pennsylvania, in 1983. Fast forward to 1994, and the headquarters moved again to their current spot in Quakertown. The Quakertown location is huge, with 220,000 square feet, and they even added another 35,000 square foot building in Jackson Center, Pennsylvania, in 2015.
Penn Stainless Products is a major metal service center in North America. The business serves customers everywhere with many stainless steel options, even those designed for high temperatures or resisting corrosion. Penn Stainless Products stocks over 30 kinds of stainless steel in 30 product categories.
Stainless steel flanges are one part of the complete selection of stainless steel fittings Penn Stainless Products offers. You can get these flanges in common types like 304L and 316L stainless steel. Penn Stainless also provides options for special needs, ensuring that their flanges hold up well against corrosion and maintain robust strength.
Kerkau Manufacturing
Year Founded: 1951
Main Products
- Pipe Flanges (Carbon and Stainless Steel)
- Bleed Rings
- Custom Machined Parts
- Long Weld Neck Flanges
- A350 Flanges
- Hot Dipped Galvanized Flanges
- Orifice Flanges
- Paddle/Spectacle Blinds
Company Description
Kerkau Manufacturing, situated at 1321 S Valley Center Dr, Bay City, MI 48706, started back in 1951. The Baldauf family purchased Kerkau Manufacturing in 1983. They instilled core family principles into how the company operates.
Initially, Kerkau Manufacturing functioned as a production machine shop. They handled large-volume projects for the automotive and petrochemical sectors. The business performed finish machining on parts provided by customers.
The business eventually grew. Kerkau started buying A105 carbon steel raw forgings. From these, they began producing, promoting, and distributing superior-quality pipe flanges bearing their individual brand.
Stainless steel flanges came into play for Kerkau in the early 1990s. The business successfully enlarged its A105 carbon steel product line and then added stainless 304/L and 316/L grades to its material selection. This addition of stainless steel products significantly aided Kerkau’s development.
Kerkau Manufacturing provides a full selection of stainless steel flanges, including Brew Quality and Corrosion Weight choices. All stainless steel items from Kerkau conform to strict quality and dimensional benchmarks. Careful packaging comes standard to maintain quality control.
Kerkau uses cutting-edge tools and CNC machining to create exact parts from various materials. You will find many unique items in Kerkau’s stainless steel inventory. These can include RTJ faces, high-pressure flanges, reducing and expanding flanges, and flanges with special coatings or those left unpainted.
Bonney Forge
Year Founded: 1876
Main Products
- Forged Steel Fittings and Unions
- Forged Steel Valves
- Cast Steel Valves
- Branch Connections (Olets®/Pipets®)
- Specialty Products including Stainless Steel Flanges
Company Description
Bonney Forge, situated in Mount Union, Pennsylvania, was started by C.S. Bonney. The company initially began its operations in Philadelphia, Pennsylvania, nearly 150 years ago. Bonney Forge has established a very strong presence in the forged steel manufacturing world.
The Bonney Forge name is well known for making products that are of very high quality. The company makes sure everything it produces is top-notch, going beyond what’s normally expected in the business. These products consistently maintain exceptionally high quality standards.
The Mount Union location has everything needed for making and storing forged steel fittings and valves. The campus features a large machining and warehouse area, along with a forge facility. A dedicated warehouse for valves is placed strategically on a 19-acre piece of land with plenty of room to grow.
Bonney Forge moved all of its work to Mount Union, Pennsylvania, between 2000 and 2004. This shift brought all of the manufacturing work into one area. This main location allows Bonney Forge to control production better.
Bonney Forge has also grown by adding sites in other places like Houston, Shanghai, and Europe. Manufacturing facilities include WFI International in Houston, Bonney Forge Shanghai (BFS), and B.F.E. Having locations around the world helps Bonney Forge work with large companies in different industries.
Bonney Forge produces a wide variety of forged flanges, including stainless steel ones. You can find their stainless steel flanges meeting all sorts of standards like B16, MSS, and API. Production is made possible by their cutting-edge forge facility, which is fully outfitted with the latest machinery.
Bonney Forge makes sure to check the quality of its products, including stainless steel flanges. Testing happens according to many global rules. The company uses excellent technology and tough testing at each plant.
Having everything in-house, such as forging, machining, and putting things together, means Bonney Forge can keep a close eye on production. Their forge shop is well prepared with a full collection of forging equipment. The facility features all the necessary machinery and resources in one location, ready for immediate use.
Ningbo MHC Machinery CO LTD
Year Founded: 2018
Main Products
- Vacuum components
- Stainless steel flanges
- Aviation aluminum connectors
- Fluid pipe connectors
- Vacuum flanges
- Vacuum rings
Company Description
Ningbo MHC Machinery CO., LTD, situated in Ningbo Beilun, started making metal parts in 2018. Being near Beilun port, one of China’s largest ports, helps the company send its products all over the world easily. It’s great for getting machining services, too.
Mr. Andy Liu, who manages the Sales Department, leads Ningbo MHC Machinery CO., LTD. He makes sure the company focuses on giving quick responses, good prices, excellent quality, and great customer service, driving company growth and customer satisfaction. The company wants to become a top manufacturer worldwide.
Ningbo MHC makes high-quality stainless steel flanges from 304L and 316L stainless steel. CNC machining techniques craft these flanges so the final product will be precise and uniform . The company can make flanges that meet standard sizes, or it can create custom designs from customer drawings.
Advanced equipment, like turning lathes and CNC machines, ensures a detailed manufacturing process. Ultrasonic washing systems, shadow projector machines, roughness meters, and hardness testing equipment, confirm quality. All of these tools mean the company can carefully watch over production, from the starting materials to the finished flanges.
You can get zinc-plated flanges from Ningbo MHC that are perfect for fluid systems, and they can be brazed with tubes. You can purchase them at low prices, ranging from USD 0.3 to 0.6 each, but you have to buy at least 100 pieces. These specific flanges are practical choices for many different uses.
Ningbo MHC uses a system where you can track every part of the production. This means customers get exactly what they asked for, highlighting the company’s dedication to product excellence. This care for quality has made customers around the world happy.
Certifications like ISO9001, REACH, and RoHS show that Ningbo MHC is serious about quality. Different test reports are available for viewing to see the quality yourself. The certifications prove the company follows high standards in making its products, delivering a product that’s safe and reliable.
Jianglin Steel
Year Founded: 2003
Main Products
- Stainless Steel Strip
- Stainless Steel Pipe/Tube
- Stainless Steel Coil
- Stainless Steel Bar
- Stainless Steel Sheet
Company Description
Jianglin Steel Corporation, situated in Tianjin, China, is also recognized as Tianjin Jianglin Technology Development Co., Ltd. Its location, about 50km from Tianjin Sea Port, offers a significant advantage for shipping worldwide. The facility has a size of 21,000 square meters.
Wang Junjiang founded Jianglin Steel Corporation in June 2003, investing 500 million RMB. Wang Junjiang greatly influenced the connection between China’s metal industry and global management methods. He also started the Tianjin Metal Material Industry Association, uniting Tianjin’s steel sector.
Jianglin Group has grown to include five main areas: cold rolling, galvanizing, prepainting, zinc/aluminum, and real estate. Stainless steel is newer for Jianglin, developed in the last five years. Yet, Jianglin Stainless already works with over 324 clients across 86 countries.
Jianglin has made a name for itself in the worldwide market as a dependable maker and provider of stainless steel flanges. The company works closely with top steel mills in China, like Wugang, Baosteel, and Angang. Securing top-notch raw materials through partnerships.
Jianglin’s stainless steel flanges are celebrated for top quality and lasting strength. Strict quality checks are enforced on all products. Flanges are crafted exactly to what customers need.
The production at Jianglin uses advanced methods like oil cold drawing, precision rolling, and bright machining. Products made using these methods boast bright, delicate, and smooth finishes. The company can get the surface roughness down to Ra 0.4, depending on client needs.
Metline Industries
Year Founded: 2014
Main Products
- Stainless Steel Pipe Fittings
- Carbon Steel Pipe Fittings
- Alloy Steel Pipe Fittings
- Industrial Flanges
- Buttweld Pipe Fittings
- Forged Flanges
- Aluminium Flanges
- Steel Bends
- Duplex Pipe Fittings
Company Description
Metline Industries, located in Mumbai, Maharashtra, India, started making and exporting stainless steel flanges and other pipe fittings in 2014. The business has grown to be a significant pipe fittings maker in India. Metline Industries has factories in both India and China.
Metline Industries has over 30 years of combined experience in making things. The company knows how to make great stainless steel flanges that meet rules from around the world. Every product, especially stainless steel flanges, is made and checked carefully to follow rules like ASME/ASTM, API, and others.
The company is great at making many kinds of industrial flanges, and stainless steel flanges are very important for piping systems. Stainless steel flanges are tough, built with care, and don’t rust easily. The flanges work well even in tough places.
Stainless steel flanges from Metline Industries are used in many important projects. You can find these flanges in nuclear power stations, regular power plants, and places that build ships. You can see the usefulness and trustworthiness that these stainless steel flanges bring.
Coastal Flange
Year Founded: 1986
Main Products
- Stainless Steel Pipe Flanges (304/304L and 316/316L series)
- Carbon Steel Pipe Flanges
- Alloy Pipe Flanges
- Custom Pipe Flanges
- AWWA Pipe Flanges
- Slip-On Pipe Flanges
- Weld Neck Pipe Flanges
- Blind Pipe Flanges
- Lap Joint Pipe Flanges
- Threaded Pipe Flanges
- Socket Weld Pipe Flanges
Company Description
Coastal Flange, located in Houston, Texas, is a manufacturer of industrial steel pipe flanges. Established in 1986, Coastal Flange is an expert in flange production, utilizing state-of-the-art equipment. The advanced methods help achieve efficient delivery times.
The business is expanding to be a worldwide distributor of pipe flanges. Most of the company’s business activity happens in Canada and the US. Coastal flange uses innovative methods that deliver superior products efficiently.
ASTM A182-F300 and A182-F400 Series forgings are used by Coastal Flange for stainless steel pipe flange production. You should know that the popular stainless steel grades handled are A182-F304/F304L and A182-F316/316L. Nickel, chromium, and molybdenum are contained in greater amounts within these materials as opposed to what is found in carbon steel.
The 300 Series stainless steel flanges possess a non-magnetic characteristic. The 400 Series exhibits magnetic qualities, although showing less resistance to corrosion compared to the 300 series. You’ll find that this information is essential when picking out the right kind of flange.
Coastal Flange produces stainless steel pipe flanges for the water sector. Specifically, Coastal Flange makes them following the AWWA C228-19 guidelines, covering stainless steel pipe flange connections for water applications, with diameters spanning from 2 to 72 inches. These flanges ensure compliance with the Safe Drinking Water Act and regulations concerning water systems.
Five pressure categories are offered in their stainless steel selection for water applications: Class SA (50psi), Class SB (86 psi), Class SD (175-150 psi), Class SE (275 psi), and Class SF (300 psi). These varieties accommodate various operational requirements, ensuring adaptability across numerous water system setups. This wide range of options allows for a great amount of flexibility.
Texas Flange
Year Founded: 1986
Main Products
- Stainless Steel Industrial Flanges
- Alloy Steel Industrial Flanges
- Carbon Steel Industrial Flanges
- Weld Neck Flanges
- Slip On Flanges
- Blind Flanges
- Threaded Flanges
- Socket Weld Flanges
- Lap Joint Flanges
- Orifice Flanges
- Ring Flanges
- Custom Steel Flanges
Company Description
Texas Flange, located in Houston, Texas, started making industrial pipe flanges in 1986. The business has extra work areas in Pearland, Texas, showing its growth. The company is known for reliably providing parts important for connecting pipes in many work settings.
Texas Flange makes products that meet both ASME code and non-code industrial pipe flange needs. The company works mainly with the petrochemical, process, and waterworks industries. These industries require parts that can handle a lot of stress without breaking.
The stainless steel flanges from Texas Flange are selected because they do not easily rust or wear away. Stainless steel is vital in work areas where metals meet harsh chemicals. Environments can damage materials that aren’t as strong.
These industrial flanges are tough and work well under intense pressure. You can count on these pieces to keep their form, even if it gets extremely hot or cold. Flanges that won’t warp or bend ensure that machines keep working right.
You can get stainless steel flanges in many sizes, from just half an inch up to a huge 203 inches. The many sizes available mean there’s a flange for almost any job. Texas Flange’s products come in many pressure ratings, like 75, 125, and 150, going up to 2500, 5K, and even 20 K.
Texas Flange makes sure all its stainless steel flanges follow important rules set by groups like ANSI, API, and AWWA. Meeting these standards means that customers can be sure their systems are not dangerous. These regulations help factories run without problems.
Jeff Barnett is the CEO and owner, and John Barnett works as the Sales Manager. With strong leaders like Jeff and John, Texas Flange has become known as an expert in making very strong, reliable connection parts. Flange expertise allows the company to help prevent problems in industrial systems where pipes join.
Sandvik
Year Founded: 1862
Main Products
- Equipment and tools for mining and infrastructure
- Metal-cutting tools and tooling systems
- Stainless steel tubes, pipes, fittings, and flanges
- Digital solutions for manufacturing
- Industrial metrology technologies
- Metal powder
Company Description
Sandvik, located in Stockholm, Sweden, started way back in 1862. It was all thanks to Göran Fredrik Göransson. He figured out how to use the Bessemer method for making steel on a really large scale, before anyone else.
From the start, Sandvik focused on top-notch quality, investing in research, and staying close to its customers and sending products overseas. Sounds like a pretty solid plan, huh? It’s a strategy they’ve stuck with.
The company went public, listed on the Stockholm Stock Exchange in 1901, a bit of a milestone. Then, in 1921, Sandvik started producing stainless steel, which later on played a significant role in the development of the business. You know, it turned into one of their main products.
Sandvik knows its business when it comes to stainless steel flanges. The company keeps a lot of stainless steel flanges in stock, all made to meet international standards. Sandvik makes tubes, pipes and other fittings, along with flanges.
There was a merger announced in 2002, between Sandvik Steel UK and RGB Stainless Ltd. RGB Stainless Ltd was kind of a go-to supplier in the UK for stainless steel, including flanges. This move is intended to give Sandvik a stronger foothold in the UK market, combining RGB’s strengths in stocking, distribution, and package building. It mixed well with Sandvik Steel’s specialized knowledge of specialty steels.
Sandvik’s stainless steel flanges are durable and resist corrosion. The company manufactures flanges using different stainless steel grades, even super corrosion-resistant ones like 904L. These materials make Sandvik’s flanges perfect for tough jobs in industries like chemical processing, and marine settings, because corrosion is such a challenge there.
The company has constantly grown, in part by buying other companies. A significant change happened, in August of 2022—Sandvik’s Materials Technology division spun off into its own company named Alleima. The stainless steel flange operations are now handled by Alleima.
Viraj Profiles Limited
Year Founded: 1992
Main Products
- Stainless Steel Wire Rods
- Stainless Steel Wires
- Stainless Steel Fasteners
- Stainless Steel Bright Bars
- Stainless Steel Profiles
- Stainless Steel Flanges
Company Description
Viraj Profiles Private Limited, situated near Mumbai, India, initially focused on making utensil-grade steel for local use. It all started in a modest industrial area called Tarapur. Mr. Neeraj Raja Kochhar founded the company.
The Flanges and Bright Bars division got up and running, and then the company started sending Bright Bars to other countries. This happened back in 1995. It’s a pretty major step to branch out like that.
Mrs. Kochhar became part of the operation. She helped set up something new: the Profiles division, mostly selling products outside of India. This was a big part of their journey.
Viraj’s flanges operation includes a complete forge shop, which is a place where metal gets shaped. Not only do they produce flanges, but other items as well, such as butt welding fittings, and forged bars, are made there. Pipe fittings, essentially, encompass a broad category.
Viraj makes flanges ranging in size from half an inch all the way up to a whopping forty inches. With this large a range in sizes, they can supply flanges for many different projects. Their manufacturing capacity for stainless steel flanges, to put a number on it, hits 18,000 metric tons annually.
They have the capability to produce a significant amount of product to meet customer demand, ensuring that projects can proceed without unnecessary delays. The in-house heat treatment shop allows the company to carefully control the properties of the steel. Additionally, the lab allows for quality testing throughout various production stages.
Conclusion
When it’s time to connect pipes, keep stainless steel flanges in mind because they create strong, lasting connections. The wide variety available means finding the ideal flange for your specific project is easy. They’re a reliable and versatile option, no matter the task.



