What Is The Difference Between High Frequency Welded Pipe And Straight Seam Welded Pipe?

Many friends may have heard of high-frequency welded pipe and straight seam welded pipe, but you may not understand what the difference between them. Today Union Steel will give you a brief introduction:

First, the nature of different

1, high-frequency welded pipe: hot rolled coil after forming machine molding, the use of high-frequency current skin effect and proximity effect, so that the edge of the billet is heated and melted in the extrusion rollers under the action of pressure welding to achieve the production of products.

2, straight seam welded pipe: including double-sided submerged arc welding straight seam welded steel pipe and high-frequency resistance welding, high-frequency resistance welding, high-frequency resistance welding, referred to as erw, submerged arc welding straight seam steel pipe according to its different molding methods and is divided into UOE, RBE, JCOE steel pipe and so on.

Second, different materials

1, high-frequency welded pipe: high-frequency resistance welding of steel pipe, and ordinary welded pipe welding process is not the same, the weld is made from the body of the steel strip melted into the base material, the mechanical strength of the welded pipe than the general.

2, LSAW pipe: LSAW pipe materials are mainly Q195, Q215, Q345 and x42 and other pipeline steel series. Straight seam welded pipe according to the wall thickness of ordinary steel pipe and thickened steel pipe two kinds of steel pipe according to the form of pipe end and divided into two kinds of threaded and unthreaded.

Third, the characteristics of different

1, high-frequency welded pipe: smooth appearance, high precision, low cost of welding seam height is small, favorable 3PE anticorrosion coating coating. High-frequency welded pipe and submerged arc welding pipe welding method is significantly different. As the welding is done instantly at high speed, to ensure that the welding quality is much more difficult than the submerged arc welding method.

2, straight seam welded pipe: the length of the straight seam welded pipe is mainly divided into fixed and non-fixed size, which is mainly based on customer requirements, the length of the general 6-14 meters, large diameter straight seam welded steel pipe may require two steel plate for rolling which also forms a double weld.

The above is the difference between high frequency welded pipe and straight seam welded pipe that I have organized for you, I hope you can choose the right product you need when you buy. If you still have questions you can give me a message!