Changsha Xiangjia Metal Materical Co., Ltd.

The difference between   seamless steel pipe   and   seamed steel pipe : 1. Different processing technology Seamless pipes are made of carbon steel or alloy steel. The processing technology of seamless pipes are cold drawing and hot rolling, while seamed pipes are welded. 2. Different usage Seamless pipes are mainly used as pipelines or structural parts for conveying fluids, mainly in the machinery industry. And seamed steel pipes are used in the construction industry, such as low-pressure fluids for water, gas, and compressed air. However, seamless steel pipes are used for pressure pipes. 3. Different price: Because the production process of seamless steel pipe is more complicated, the price is more expensive than that of seamed steel pipe, while the seamed steel pipe is mainly made of secondary welding of steel plate (steel strip), which is cheap and widely used.

How to choose the   spiral pipe   in the sewage project? 1. Material selection: At present, the material for spiral pipe is Q235B, which is enough for the sewage industry. If the requirements are higher, should to use Q345B. 2. Implementation standards: At present, the implementation standard of large-diameter spiral steel pipe for sewage discharge is 5037. If the quality requirements are higher can select the standard 9711. 3. Anti-corrosion type: Epoxy coal tar can be selected for anti-corrosion of the outer wall, and cement mortar can be selected for anti-corrosion of the inner wall.

The advantage of this processing technology of   ERW (ERW STEEL PIPE)   is that there is a heat treatment process after welding, which eliminates the residual stress in the weld and heat-affected zone, refines the crystal grains, and has a small heat-affected zone of the weld and fast heating speed, which can greatly improve the welding speed and Welding seam quality, and can be used as blanks without pickling, shot blasting and trimming strip steel, while welding alloy steel, high alloy steel and non-ferrous metal pipes, greatly reducing the unit power consumption, with a set of welding equipment can produce Kind of ERW.  ​ Therefore, the ERW unit needs to fully utilize and expand its own advantages in order to improve product quality and develop new products.   Changsha Xiangjia Metal Materical Co., Ltd.  the Steel Pipe Division of ADTO GROUP, is one of the leading manufacturers of steel products in China. We specializes in manufacturing all kinds of steel pipe in various grades and