Top Useful Suggestions on Selecting High-Quality Straight Steel Pipe

The LSAW lsaw pipe manufacturer is welded from high-frequency welding outfit or LSAW welding machine, which plays a key role in many large-size projects, such as gas transmission engineering, water-supply engineering or steel structure engineering and so on. Because of the hugeness of these projects, how to select the high-quality straight longitudinal welded pipes is very necessary. Then, the following will introduce several useful suggestions.

The basic material quality of straight steel pipe comes very first, which plays a fundamental role in the comprehensive performance of end products. During the process of inspecting the products, the material quality should be tested in the very first place. For instance, the inferior straight steel pipe will be caught by fissure. Why? Because many line pipe manufacturers would like to choose sun-dried mud as the blank, which has many air holes. Such a sun-dried mud will cause the fissure during the cooling process because of the thermal stress function, not to mention being through the working procedure of rolling.

The surface condition of LSAW steel pipes also asks for special attention. The surface of straight steel pipe will have the pitted skin if it is inferior. Such an uneven surface is called by the badly-abraded rolling groove, which largely results from the irresponsible manufacturers who are eager to pursue maximum profit. In the meantime, the surface of the high quality straight steel pipe will have obvious metallic luster. Generally speaking, no metallic luster and surface scab are generated from impure raw material and nonstandard rolling temperatire as well as rough production equipment of manufacturers. Besides, the wall thickness of the straight steel pipe should meet the standard formulated by the authority. The tolerance of the wall thickness should within the certain range. Meanwhile, don't forget the cross section. The cross section of high-quality pipe is round, or it will be oval. The main reason for the oval cross section lines in the insufficient raw material of many manufacturers, which will reduce the intensity of the pipe greatly. No wonder the external size can's meet the standard. In addition, the high-quality pipe is free from the burr problem.

Of course, don't forget to detect the background information of manufacturers, especially those Low carbon steel pipe manufacturers. They not only have direct relationship with the quality and performance of finished straight steel pipe products, but also affect the whole working efficient of those large-scale engineering projects.