Alloy 20 Welded Tube

Alloy 20 Welded Tube Manufacturer, Supplier in India

Alloy 20 is a specialized nickel-chromium-molybdenum stainless steel alloy commonly used to produce welded tubes. It is specifically designed to offer exceptional resistance to corrosion, particularly in highly corrosive environments. The unique composition of Alloy 20, which includes elements such as nickel, chromium, and molybdenum, provides excellent resistance to various corrosive agents such as sulfuric acid, phosphoric acid, and chloride solutions.

That makes it an ideal choice for applications where corrosion resistance is crucial, such as chemical processing, pharmaceuticals, food processing, and offshore oil and gas industries. Additionally,Alloy 20 exhibits good mechanical properties, including high strength and excellent weldability, making it suitable for fabricating welded tubes. Its combination of corrosion resistance, mechanical strength, and weldability makes Alloy 20 a preferred material for demanding applications requiring reliable and durable welded tubes.

What industries or applications commonly utilize Alloy 20 welded tubes?

Alloy 20 welded tubes have extensive usage across various industries and applications that require reliable performance in highly corrosive environments. One such industry is chemical processing, where the tubes are employed to construct reactors, heat exchangers, and storage tanks for handling corrosive chemicals like sulfuric acid, nitric acid, and acetic acid. The pharmaceutical industry also utilizes Alloy 20 welded tubes for manufacturing equipment such as process piping, vessels, and pharmaceutical-grade tubing that come into contact with aggressive substances during drug production.

In the food processing sector,Alloy 20 welded tubes are commonly employed in applications involving the handling of acidic or alkaline food products and in the production of dairy products and fruit juices. Moreover, the offshore oil and gas industry relies on Alloy 20 welded tubes for subsea equipment, pipelines, and offshore platforms, providing resistance against corrosive saltwater and harsh operating conditions. Other notable applications include desalination plants, pulp and paper manufacturing, wastewater treatment, and architectural structures in coastal areas.

Preparing The Sheets

Before being selected to roll, the stainless steel sheets go through a number of inspections. Trimming them around the edges is the first step in preparing them.

Rolling Through Rollers

The desired size is then achieved by running the sheets through many rollers. You can see the sheets evolving into tubular shapes in this stage.

Rollers Through The Fitted Welding Machine

The tubular shape must pass through a customised welding equipment in this step. You get precisely rolled tubes by removing the weld beads and scraps from inside these tubular shapes.

Welding Process

The grade and application requirements have an impact on tube welding and forming. For the manufacturing of tiny diameter tubes, we employ TIG welding. Steel sheets are coiled and welded inside of a welding machine. The steel sheets are shaped into a coil before entering the machine. The seam between these coils is then welded to create a tube.

Electric Resistance Welding (ERW) Process

Tube is made using the Electric Resistance Welding (ERW) technique, which involves cold-forming a flat sheet of steel into a cylindrical shape. The steel is then heated by applying current to either of the cylinder's edges, forcing the edges to bond together firmly without the use of welding filler material.

Submerged Arc Welding (SAW) Process

An arc is created between a workpiece and a continuously fed bare wire electrode during the Submerged Arc Welding (SAW) procedure. Additionally, flux is used to create slag, produce protective gases, and provide alloying materials to the weld pool. Gas shielding is not required.

Electric Flash Welding Process

A steel sheet being transformed into a cylinder using the electric flash welding process. The edges are heated until they become semi-molten in this instance, and then they are pressed together until molten steel is squeezed out of the junction and forms a bead.

Annealing

Metal is heated above the point of re-crystallization and cooled to room temperature during the annealing process. The molecular bonds in metal tighten when it is shaped, making it rigid. The metal is put through an annealing process to regain its ductility.

Sinking Process

Tube sinking is a drawing technique that reduces the diameter of tubes. In this drawing technique, a tube is run through a die without the need of a mandrel. Good inner surface quality is not ensured when using a mandrel. The die angel determines the integrity of the outer surface. The die being used produces a uniform surface. A tube can be significantly smaller than it was originally. When cost is a factor, tube sinking is ideal.

Inspection and Testing

Before sending our items to our consumers, we conduct inspection procedures to verify their integrity.