Galvanized Mild Steel Pipe are divided into welded steel pipes for low pressure fluid transportation, electric welded pipes, spiral seam electric welded steel pipes and so on. Seamless steel pipes can be used for various liquid and gas pipelines. Welded pipelines can be used for water pipelines, gas pipelines, heating pipelines, etc.
Steel pipes can be divided into two categories according to production methods: seamless steel pipes and welded steel pipes.
1. According to the production method, seamless steel pipes can be divided into: hot-rolled seamless pipes, cold drawn pipes, fine steel pipes, hot expanded pipes, cold spinning pipes and kneaded pipes. Seamless steel tubes are made of high-quality carbon steel or alloy steel, and can be divided into hot-rolled and cold-rolled (drawn).
2. Welded steel pipes are divided into furnace welded pipes, electric welded pipes and active arc welded pipes due to their different welding processes. Because of their different welding methods, they are divided into two types: straight seam welded pipes and spiral welded pipes. Because of their end shapes, they are divided into circular welded pipes. And special-shaped (square, flat, etc.) welded pipes. Welded steel pipes are welded by butt seams or spiral seams from steel plates rolled into a tube shape.
According to raw materials, steel pipes can be divided into carbon pipes, alloy pipes, stainless steel pipes and so on. Carbon tubes can be divided into general carbon steel tubes and high-quality carbon structural tubes. Alloy pipe can be divided into: low alloy pipe, alloy structure pipe, high alloy pipe and high strength pipe. Bearing tubes, heat-resistant and acid-resistant stainless tubes, fine alloy (such as Kovar) tubes, and high-temperature alloy tubes.
According to the connection method, the Galvanzied steel pipe can be divided into the wire tube and the smooth tube according to the connection method of the pipe end. The wire tube is divided into: general wire tube and tube end thickened wire tube. Thickened wire tubes can also be divided into: external thickening (with external threads), internal thickening (with internal threads) and surface and inside thickening (with external and internal threads) and other types of wire tubes. According to the thread type, the wire tube can also be divided into: general cylindrical or conical thread and special thread.
Galvanized steel pipes can also be divided into cold galvanized steel pipes and hot-dip galvanized steel pipes. What is the difference between these two steel pipes? Please see the next share.
