Spiral steel pipes can be divided into two categories according to production methods: spiral steel pipes and seamed steel pipes, and seamed steel pipes are referred to as straight seam steel pipes. According to the production method, spiral steel pipes can be divided into hot-rolled seamless pipes,

At present, there are more and more types of straight seam steel pipes. With the rapid development of continuous strip rolling production and the advancement of welding and inspection technology, the weld seams continue to improve, the varieties and specifications of welded steel pipes are increasin

"ERW welded steel pipe" is a straight seam electric resistance welded pipe, abbreviated as ERW. It is used to transport vapor and liquid objects such as oil and natural gas and can meet various requirements of high and low pressure. Currently, it occupies a pivotal position in the field of transport

1. How does the gnawing of straight seam steel pipe happen? What is the effect on welded pipes?The gnawing edge of the straight seam steel pipe usually occurs on the slitting strip coil. The gnawing edge of the straight seam steel pipe is a jagged appearance at the edge of the steel strip. The reaso