Difference Between ERW & Seamless Stainless Steel Pipes

Difference Between ERW & Seamless Stainless Steel Pipes

Due to its superior attributes and features, stainless steel goods are widely employed in a variety of sectors and applications. Today, we'll talk about the differences between seamless stainless steel pipes and ERW stainless steel pipes in this post. We'll go through the differences later, but first, let's go over the differences between seamless and ERW stainless steel pipes.

Pipes are available in a variety of forms, shapes, and diameters, including seamless and ERW. They are the most demanding items, and they are employed in a wide range of applications. Seamless pipes are often produced from "billet," a solid round steel that is pressed and heated until it takes on the shape of a hollow tube. There are a number of indigenous suppliers and manufacturers to choose from. One of them is Jaiman Metalalloys, which manufactures and distributes seamless and ERW stainless steel pipes all over the world. When it comes to ERW stainless steel pipes, however, they are made with HR coils and heated and pressed processes.

Let's get to the point of this post, which is the distinction between ERW and seamless stainless steel pipe.

The following are the differences between ERW and seamless stainless steel pipe:

Electric resistance welding (ERW) pipe is made from rolling metal and then welded longitudinally throughout its length. Seamless stainless steel pipes are made by extruding metal into the necessary length, which is why ERW pipes have welded connections in the cross-section and seamless pipes do not.

There are no joints or welding accessible in seamless stainless steel pipes, which are made from billet. These pipes are available in sizes ranging from 1/8 inch to 26 inches OD, with final two-dimensional and wall thickness requirements. These seamless pipes are suitable for applications requiring high pressure.

ERW pipes, also known as (electric resistance welded) pipes, are typically welded longitudinally and made from coils or strips. Pipes of this type can have an outside diameter of up to 24 inches. These pipes are made from a steel ribbon that is dragged through a series of rollers and moulded into a tube that is fused using electricity. Low to medium pressure applications are common for the pipes. Stainless steel pipes in this size range from 2 3/8 inch OD to 24 inch OD and come in a variety of lengths up to 100 feet. Surface finishes for ERW pipe are coated and bare, and processing is done on site according to the customer's demands.

How can I tell the difference between ERW and seamless stainless steel pipes?

Simply read the stencil accessible on the side of the pipe to quickly determine if it is ERW or seamless. For example, if the pipe is ASTM A53, type S is seamless, type F is welded in a furnace, and type E is electrical resist welded, making it simple to determine if the pipe is ERW or seamless stainless steel pipe.

So, we're certain that you now know the difference between ERW and seamless stainless steel pipes. Visit Dynamic Alloys today if you're interested in purchasing these pipes.