Cold expanded of large diameter straight welded pipe is a use of hydraulic or mechanical means urging the steel pipe from the steel wall along the radially outward dilatation pressure molding process. Mechanical than hydraulic mode, the device is simple and more efficient use of steel in high-precis

Hot-rolled steel is a commonly used material in construction and manufacturing due to its strength and versatility. However, like any material, it has its disadvantages:1. Shape Limitations: Hot-rolled steel sheets and plates typically have a rougher surface texture compared to cold-rolled steel. Th

Advantages of Electric Resistance Welding:1. Fast and efficient: Electric resistance welding is a fast and efficient method of welding two or more metal parts together. It typically involves placing the parts in contact with each other and passing an electric current through them, causing them to me

When it comes to shape requirements for LSAW steel pipes, several factors need to be considered to ensure the proper functionality and performance of the pipe in the field:1. Dimensional Accuracy: LSAW pipes must meet precise dimensional specifications, including diameter, wall thickness, and length

Annealing is to heat the cold-rolled precision bright steel pipe to an appropriate temperature, adopt different holding times according to the material and workpiece size, and then slowly cool it. The purpose is to make the internal structure of the metal reach or approach an equilibrium state and o

In daily life and engineering projects, stainless steel pipes are widely used as an important building material, but it is often difficult to distinguish different types of stainless steel pipes at a glance. The following will introduce several common stainless steel pipe model identification method

Seamless steel pipe extrusion is a commonly used pipe-making process, mainly used to produce seamless steel pipes of various specifications and materials. The principle is as follows:1. Material selection: First, select appropriate steel billets as raw materials. These steel billets are usually preh

MS (mild steel) and GI (galvanized iron) pipes are two common types of pipes used in various industrial and construction applications.The main difference between MS and GI pipes is the material they are made of. MS pipes are made of mild steel, a type of low carbon steel that is strong and durable.

The term "CS pipe" typically refers to "carbon steel pipe," which is made from a material that contains a higher carbon content than mild steel. The density of carbon steel pipes can vary slightly depending on the specific carbon content and the inclusion of other elements, but on average, the densi

1. Visual Inspection: Check for any surface defects, such as dents, scratches, or corrosion. Make sure the weld seams are smooth and consistent.2. Dimensional Inspection: Measure the dimensions of the pipe, including diameter, wall thickness, and length, to ensure they meet the required specificatio