Stainless steel welded pipe

What are the different sizes and schedules available for stainless steel welded pipes?

Stainless steel welded pipes are available in various sizes and schedules to meet different industrial requirements. The sizes range from small to large diameters, catering to diverse applications. Commonly used schedules for these pipes include Schedule 40 and Schedule 80.

These schedules determine the wall thickness of the pipes, with Schedule 80 having a thicker wall compared to Schedule 40. Depending on the specific needs of a project, manufacturers offer a wide range of sizes and schedules for stainless steel welded pipes to ensure compatibility and durability.

Stainless Steel ERW Pipe and SS EFW Pipes Stockist in Mumbai

What is the difference between ERW and EFW stainless steel welded pipes?

The two processes utilised to create stainless steel welded pipes are ERW (Electric Resistance Welding) and EFW (Electric Fusion Welding). A flat sheet of steel is rolled into a cylindrical shape to create ERW pipes, and the edges are then joined together using an electric current.

By using an electric arc, the edges of two steel plates are welded together to create EFW pipes. The process used to weld the pipe differs greatly between the two methods. EFW pipes are appropriate for high-pressure applications while ERW pipes have a smoother finish and are typically utilised for low-pressure applications.

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How is the surface finish of SS Welded Pipe achieved?

Pickling and passivation is the technique used to obtain the surface finish on stainless steel welded pipes. In order to establish a homogeneous surface and remove any surface imperfections, pickling uses a chemical solution.

The process of passivation requires cleaning the pipe’s surface of any leftover contaminants and adding a layer of protection using an acidic solution. For applications where sanitation and aesthetics are crucial, including in the food and beverage industry, the pipe’s surface treatment is high;y preferable.

Large diameter & Thick wall EFW Stainless Steel Pipe available in Schedule 80, 40, 60, 20, STD, XXS, suitable for chilled water systems

Stainless steel welded pipe specification

Get the best offer by contacting manisha steel for Schedule 40 Welded Stainless Steel Pipe, Check Stainless Steel Spiral Welded Pipe weight chart

SS welded tube types

Looking for fastest delivery of Schedule 80 SS Welded Pipe in Mumbai? Find your sizes and thickness of Large Diameter Stainless Steel Welded Pipe in our ready stock

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SS ERW Pipe equivalent

What is the maximum pressure that Stainless Steel EFW Pipe can withstand?

The maximum pressure that a stainless steel EFW pipe can withstand depends on the size, wall thickness, and material grade of the pipe. For example, a 6-inch EFW pipe with a schedule of 40 and made of 304 stainless steel can withstand a maximum pressure of 870 psi at room temperature.

The maximum pressure that the pipe can bear will, however, drop as the temperature or corrosiveness of the fluid being delivered rises.

What is the process of manufacturing Schedule 80 SS Welded Pipe?

Schedule 80 SS welded pipes are manufactured using the ERW or EFW method. The process involves rolling a flat sheet of stainless steel into a cylindrical shape and welding the edges together using an electric current. The resulting pipe is then passed through a series of rollers to achieve the desired wall thickness.

The pipe is then cut to the required length and the ends are beveled for welding. The Schedule 80 SS welded pipe is suitable for high-pressure applications due to its thick wall.

How are Stainless Steel Spiral Welded Pipe tested for quality assurance?

Stainless steel spiral welded pipes are tested using various methods to ensure that they meet the required quality standards. The tests include visual inspection, ultrasonic testing, hydrostatic testing, and eddy current testing. Visual inspection is performed to check for any surface defects or deformities. Ultrasonic testing is used to detect any internal defects, such as cracks or voids.

Hydrostatic testing involves filling the pipe with water and pressurizing it to check for leaks. Eddy current testing is used to detect any surface defects or cracks that may have been missed during visual inspection. These tests ensure that the stainless steel spiral welded pipe is of high quality and suitable for its intended application.