Union Supplier

Stainless steel unions are a vital component in various piping systems across industries. These unions provide an easy and efficient solution for connecting or disconnecting two pipes or fittings. Made of stainless steel, these unions are highly corrosion-resistant, making them perfect for use in harsh environments where corrosion poses a significant risk. Their design allows them to be easily installed and removed without special equipment or tools. Furthermore, SS Unions ensure a secure and leak-free connection, ensuring smooth and reliable operations. From chemical processing plants to oil rigs, stainless steel unions are prevalent in numerous applications thanks to their durability and outstanding performance.

Steel Union, Stainless Steel Union, Alloy Steel Union, Threaded Union, Carbon Steel Union, SS Union, Union Socket, Reducing Union, Sms Union ANSI B16.11 Union Supplier in Mumbai, India.

What are Stainless Steel Unions? Stainless Steel Unions are high-quality fittings made from stainless steel that can be used in various applications. They feature an internal seal and gasket system, which allows them to form a tight seal between two pipes or tubes. These fittings are often used in industrial applications where high temperatures or corrosive materials may be present due to their superior strength and durability. At Metcore Steel, we pride ourselves on providing excellent customer service and offering a wide range of products, including Stainless Steel Unions and SS 201 Nickel Alloy Pipe Fittings.

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The most common type is the socket weld union which features a female end connected by welding or soldering. Another type is the threaded union which consists of two pieces with male threads that can be screwed together for a secure connection. There is also the slip joint union with two tapered ends that interlock when tightened together, as well as butt weld unions that use butt welding for a permanent connection between two pipes or tubes. In addition to our range of Stainless Steel Unions, we also offer a variety of Stainless Steel 317 Pipes to meet your piping needs.

Reducing Unions are widely used in many industries, such as automobile manufacturing, oil & gas production, food processing, chemical processing plants, etc. They offer several benefits over other types of connections, such as easy installation with minimal effort required, superior strength & durability due to their stainless steel construction, and excellent corrosion resistance making them suitable for harsh environments. Threaded Union Fitting effectively join two pipes or tubes quickly and securely without needing special tools or skill sets like welding or soldering. They offer superior strength & durability compared to other materials efficient to their construction from stainless steel material. They offer excellent corrosion resistance in even harsh environments making them ideal for many industrial applications.


A union is a type of pipe fitting used to connect two pipes in a pipeline. It consists of three parts: a nut, a female, and a male end. The male and female ends are threaded and can be screwed together while the nut tightens the connection.
The main difference between a union & a coupling is that a union can be disconnected easily, while a coupling is a permanent connection. Unions are designed to be used in applications where pipes need to be frequently disconnected for maintenance or repair.
Unions can be made from various materials, including carbon steel, stainless steel, brass, and PVC. The choice of material will depend on the application's specific requirements, such as the temperature, pressure & chemical compatibility of the fluids being transported in the pipeline.

Forged Union Specification

Dimension Standard :

Size :

Pressure Class :

Type :

ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799

1/8" NB TO 4" NB

3000 LBS, 6000 LBS, 4500 LBS

Socket weld, Threaded



Available Types of ASME B16.11 Union

Stainless Steel Union
  • Stainless Steel Union
  • SS Socket weld Union
  • Stainless Steel Threaded Union
  • SS Forged Union
  • ANSI B16.11 SS Union
Carbon Steel Union
  • Carbon Steel Union
  • CS Socket weld Union
  • Carbon Steel Threaded Union
  • Carbon Forged Union
  • ANSI B16.11 Carbon Steel Union
Alloy Steel Union
  • Alloy Steel Union
  • Alloy Steel Socket weld Union
  • Chrome Moly Threaded Union
  • CrMo Forged Union
  • ANSI B16.11 Alloy Steel Union
Duplex Steel Union
  • Duplex Steel Union
  • Duplex Socket weld Union
  • Duplex Steel Threaded Union
  • Duplex Stainless Steel Forged Union
  • ANSI B16.11 Duplex Steel Union
Super Duplex Steel Union
  • Super Duplex Steel Union
  • Super Duplex Socket weld Union
  • Super Duplex Steel Threaded Union
  • Super Duplex Forged Union
  • ANSI B16.11 Super Duplex Steel Union
High Nickel Alloy Union
  • Nickel Alloy Union
  • Monel Socket weld Union
  • Hastelloy Threaded Union
  • Inconel Forged Union
  • ANSI B16.11 Titanium Union

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