IS 1161 ERW Pipes

IS 1161 ERW Pipes Manufacturer, Supplier in India

IS 1161 ERW Pipes are governed by specific specifications and standards to ensure their quality, performance, and compliance with industry requirements. The key specifications and standards that govern 1161 ERW Pipes include those established by the Bureau of Indian Standards (BIS). According to these standards, IS 1161 ERW Pipes are classified as electric resistance welded (ERW) steel pipes used primarily for water, gas, and sewage purposes. The pipes are designed to have a circular cross-section and are available in various sizes, ranging from nominal bore diameters of 150mm to 2500mm.

The specifications outline the requirements for the manufacturing process, such as the material composition, chemical properties, mechanical properties, and dimensions of the pipes. These standards also address aspects like the pipes' tolerances, weight, and lengths, ensuring that they meet the necessary strength and durability criteria. Compliance with these specifications and standards helps to ensure the consistent quality and reliability of IS 1161 ERW Pipes in diverse applications and industries.

What are the advantages and disadvantages of using IS 1161 ERW Pipes compared to other types of pipes?

IS 1161 ERW Pipes offer several advantages compared to other types of pipes and a few limitations to consider. One notable advantage is their cost-effectiveness. IS 1161 ERW Pipes are generally more affordable than seamless pipes or pipes produced through other welding methods, making them a cost-efficient choice for various applications. These pipes are also known for their high dimensional accuracy and smooth surface finish, which ensures easy installation and compatibility with various pipe fittings. IS 1161 ERW Pipes also possess good weldability, allowing for efficient and reliable joint connections.

The advantages of IS 1161 ERW Pipes include their cost-effectiveness, dimensional accuracy, smooth surface finish, and good weldability. However, they may have limitations regarding high-pressure and high-temperature applications and size options. It is advisable to assess these factors about the specific needs of the project or application when considering the use of IS 1161 ERW Pipes.

Electric Resistance Welding (ERW) Process

Pipe is created using the Electric Resistance Welding (ERW) process by cold-forming a flat steel sheet into a cylindrical shape. The steel is then heated to a degree at which the edges of the steel cylinder are pressed together to establish a bond without the use of welding filler material.
Several Electric Resistance Welding (ERW) processes are available for pipe production. The two main types of ERW are:
. High Frequency Welding
. Rotary Contact Wheel Welding.

High Frequency Welding

In high frequency induction welding, a work coil is placed in front of the weld spot and acts as a conduit for the weld current to reach the material. Work coil does not come into contact with pipe. Through the magnetic fields that surround the pipe, an electrical current is induced into the pipe's substance. When changing pipe size, high frequency induction welding avoids contact marks and requires less setup time.

Rotary Contact Wheel Welding

The electrical current is passed through a contact wheel at the weld spot in rotary contact wheel welding. A portion of the forge pressure required for the welding process is also applied by the contact wheel. AC, DC, and square wave are the three primary types of rotary contact wheel welders. Electrical current is transferred in all three power supplies by brush assemblies that interact with slip rings attached to a revolving shaft that holds the contact wheels. The current is sent to the strip edges through these contact wheels.

Submerged Arc Welding (SAW) Process

A constantly fed bare wire electrode and the workpiece form an arc during the submerged arc welding (SAW) process. To produce protective gases, slag, and to add alloying components to the weld pool, the procedure requires a flux. Using a shielding gas is not necessary. Excess flux is recycled via a hopper as the arc advances along the joint line. After welding, any remaining layers of fused slag are simple to remove. The arc is generally invisible during welding because the flux layer totally covers it, and heat loss is also very minimal. In contrast to the manual metal arc's 25% thermal efficiency, this one can reach 60%.
There are two types of Submerged Arc Welding (SAW) processes:
. Longitudinal Submerged Arc Welding (LSAW) Process
. Spiral Submerged Arc Welding (SSAW) Process