Duplex Steel Welded Pipe

Are you worried about where you’ll find the best Duplex Steel Welded Pipes? Worry not, we at Metallica Metals serve our customers with the finest quality Duplex steel Welded Pipes. Our products are manufactured using ultra-modern tools and the technology required to construct these welded pipes. We take extreme care while producing our products. We are one of the most trusted suppliers of Duplex Steel Welded Pipe Manufacturer, Supplier in India and we supply them at industrial prices.

The microstructure of Super Duplex Steel Welded Pipes is a 50/50 combination of austenite and ferrite, giving it greater strength than ferritic and austenitic steel grades. These qualities combine the advantages of both ferritic and austenitic steel varieties in one material. The pipes could be cold drawn or hot rolled. The hot-rolled ones are more durable, while the cold-drawn ones are more seamless and precise in size. Our Duplex Pipes have a more consistent thickness and surface treatment. Internal surface finishing of these pipes has been thoroughly examined.

Crevice, intergranular, and pitting corrosion are all well-tolerated by these welded pipes. Chloride Stress Corrosion Cracking is not a problem for our welded pipes. Our products are available in a variety of sizes, thicknesses, and finishes to meet the needs of our customers.

In comparison to normal austenitic stainless steel grades, the Duplex Welded Pipe offers significantly better tensile strength. Nitrogen additions in Duplex Steel Welded Tubes can induce structural hardening through an interstitial solid solution process, which increases yield and ultimate strength without compromising toughness. These Duplex Steel pipes are advantageous as they have great resistance properties, mechanical properties and good formability along with high strength.

All our products go through a number of testing to ensure that these Duplex Steel Welded Pipes are defect-free. Our products are durable, safe and reliable. We sell these Duplex Steel Welded Pipes at competitive pricing.

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