Threeway Steel Co., Ltd
E-mail: sales@srtsteelpipe.com
Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116Phone:0086-731-8873-9521
Keywords :Causes and cutting methods of slag inclusion in straight seam steel pipes Update : 2022-11-08 View(s) : 498
Welded steel pipe slag is the slag that remains inside the weld. Theoretically, there are three main reasons for slag inclusion in submerged arc automatic welding seam: 1) There are many inclusions in the raw materials (including base metal, welding wire, and flux); 2) The interlayer cleaning is...
Keywords :What is the difference between precision stainless steel pipe fittings and general stainless steel p Update : 2022-11-04 View(s) : 1
Precision stainless steel pipe fittings, also known as stainless steel precision pipe fittings, are also called precision pipes. In the production process, the precision stainless steel pipe fittings are much more accurate than the general stainless steel pipe in terms of the smoothness of the a...
Keywords :The difference between thin-walled spiral steel tubes and thick-walled spiral steel tube Update : 2022-11-02 View(s) : 390
The concept of thin-walled spiral steel tube : the strip steel is fed into the welded pipe unit, rolled by multiple rollers, and the strip is gradually rolled up to form a circular tube blank with an opening gap, and the reduced amount of the extrusion roller is adjusted to make the welding seam ...
Keywords :Performance comparison of spiral steel pipe and straight seam steel pipe Update : 2022-10-31 View(s) : 1
1. Welding process In the welding process, the welding method of the spiral steel pipe and the straight seam welded pipe is the same, but the straight seam welded pipe will inevitably have many T-shaped welds, so the probability of welding defects is greatly increased, and the welding resi...
Keywords :Why non-metallic pipes or stainless steel pipes cannot be used as long-distance pipelines Update : 2022-10-27 View(s) : 478
Oil and gas transportation through pipelines requires a certain pressure to achieve. The longer the pipeline, the higher the pressure required for oil and gas transportation. The pressure of long-distance pipelines is generally between a few MPa and a dozen MPa, so the pipeline must have Sufficient ...