Steel pipe can be seen everywhere in our daily life. It is widely used in heating, water supply, transportation of oil and gas and other industrial liquids, etc., which brings great convenience to our life and production.
There are only several ways to produce straight seam steel pipes with steel plates or steel strips in industry. The difference in principle lies in the forming method of the steel pipes. The subsequent processing of the steel pipes after forming is basically the same. The forming method depends in principle on the distribution of weld seams of steel pipes. According to the distribution of weld seams, steel pipes are divided into two basic forms: straight seam steel pipes (ERW pipes and LSAW pipes) and spiral seam pipes. The most widely used welding method for straight seam steel pipes and spiral seam pipes is submerged arc welding (SAW), which has good quality, high productivity, mature and stable technology.
The welding process of straight seam steel pipe is simple, the welding cost is low, and the production speed is fast. It is relatively common in the market and is a widely used product. So what are its application ranges?
1. Trunk pipelines for transporting gas, water and oil on land and sea;
2. Pipes used in the chemical industry to transport chemical raw materials and products;
3. Marine industry structural pipes;
4. Tubes for boiler manufacturing and structural tubes for special purposes.
Just because straight seam steel pipes are inseparable from human life and production activities, the production technology of straight seam steel pipe industry not only develops, but also introduces new ones. The production of straight seam steel pipes occupies a leading position in the iron and steel industry.
