Mild steel flanges are key in piping systems. They join pipes, valves, pumps, and other equipment. Manufacturers make these flanges from mild steel and carbon steel. It has a balance of strength, flexibility, and easy welding. This blog will explore the types of mild steel flanges. We will also cover their key applications in various industries.
What Are Mild Steel Flanges?
Mild steel flanges are flat, round discs with holes used to connect two piping systems. They are designed to be bolted together, creating a strong, reliable seal for the pipes. Mild steel is a versatile material with strength and durability, making it a popular choice for various applications.
Types of Mild Steel Flanges
- Weld Neck Flange (WN): A weld neck flange has a long tapered hub that gradually transitions into the pipe. This design makes it ideal for high-pressure systems and heavy-duty applications. Weld neck flanges are commonly used in industries such as oil and gas, chemical plants, and power generation.
- Slip-On Flange (SO): The slip-on flange is easy to install as it simply slips over the pipe and is then welded in place. These flanges are often used in low-pressure applications where the ease of installation is a priority. Slip-on flanges are ideal for systems with lower stress and pressure.
- Blind Flange (BL): Blind flanges seal the end of a pipe or vessel. They have no centre hole, which makes them perfect for closing off pipelines that are not in use. Blind flanges are commonly found in systems where maintenance or future connections may be required.
- Threaded Flange (TF): Threaded flanges have internal threads that allow them to be screwed onto a pipe. This eliminates the need for welding, making them an excellent choice for systems where welding is not possible or practical. Threaded flanges are often used in smaller pipe systems.
- Socket Weld Flange (SW): Socket weld flanges have a socket in the centre where the pipe fits. The pipe is then welded in place, offering a strong connection. These flanges are commonly used in smaller pipes and high-pressure applications.
- Lap Joint Flange (LJ): Lap joint flanges are typically used when a pipe needs to be joined to a piece of equipment, but frequent disassembly is required. The flanges are used with a stub end, which allows the flange to be easily removed and replaced.
Applications of Mild Steel Flanges
- Mild Steel Flanges are used in various industries thanks to their versatility and strength. Some of the most common applications include:
- Oil and Gas: Used to connect pipelines, valves, and other equipment in offshore and onshore oil extraction and transportation systems.
- Water Supply Systems: Often used in water treatment plants, municipal water systems, and fire-fighting systems for their reliability and cost-effectiveness.
- Power Plants: Essential in connecting steam, water, and gas lines in power generation facilities.
- Chemical Processing: Used in the chemical industry for pipelines that transport fluids and gases under pressure.
- Construction: Mild steel flanges are also found in building construction, especially in HVAC, plumbing, and industrial systems.
Why Choose Mild Steel Flanges?
Manufacturers favour mild steel flanges for their cost-effectiveness, ease of fabrication, and availability. They are strong and wear-resistant. So, they are ideal for many uses. They are compatible with various sealing methods, which enhances their versatility.
Conclusion
Mild steel flanges are integral to many industries, providing reliable connections for piping systems. Therefore, depending on the needs, businesses are in a position to decide which flange to use since there are various types of mild steel flanges. Whether it’s a high-pressure system, a water treatment plant, or a chemical processing facility, mild steel flanges offer the durability and versatility required to keep operations running smoothly.