The Difference Between ERW and Seamless Pipe

ERW and seamless pipes are both made from steel, but they differ in the manufacturing process. ERW pipes are created by welding longitudinal pieces of steel together, while seamless pipes are drawn from a single billet of raw material. This process results in a seamless pipe that has no seams. The main differences between erw and seamless pipes are the manufacturing methods, as well as the amount of precision required in the drawing process.

Seamless pipes are often used for chemical processes and oil and gas applications. Seamless pipes are sturdier than erw pipes, and they have inherent safety features. They are also widely used in oil and gas refineries. However, well-manufactured ERW pipes are also used for water transportation and construction purposes, such as scaffolding and fencing. They have an improved internal finish than seamless pipes, and this can be an important difference for your project.

Another important difference between erw and seamless pipe is cost. Seamless pipes are generally more expensive than ERW pipes. However, the quality is often far superior. Seamless pipes can be used for higher pressures and temperatures. However, they can be costly if you need large diameters.

Seamless pipes are manufactured from solid steel billets that are pierced by a mandrel. This creates a hollow tube, which is then further processed to a desired length, diameter, and wall thickness. Seamless pipes are generally stronger than ERW pipes, and their anti-bending properties make them a popular choice for many different applications.