Seamless Steel Tube Precision Tube Iron Tube Hollow Round Tube Size Diameter Thick Thin Wall Carbon Steel White Steel

Seamless Steel Tube Precision Tube Iron Tube Hollow Round Tube Size Diameter Thick Thin Wall Carbon Steel White Steel

Steel having a hollow section much longer than its diameter or circumference. According to the sectional shape, it can be divided into round, square, rectangular and special-shaped steel tubes; According to the material is divided into carbon structural steel pipe, low alloy structural steel pipe, alloy steel pipe and composite steel pipe; According to the purpose, it can be divided into conveying pipeline, engineering structure, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high pressure equipment and so on. According to the production process is divided into seamless steel pipe and welded steel pipe, which is divided into hot rolled and cold rolled (pull) two kinds of seamless steel pipe, welded steel pipe and straight seam welded steel pipe and spiral seam welded steel pipe.
Steel pipe is not only used to transport fluids and powdery solids, exchange heat, manufacture mechanical parts and containers, it is also an economical steel. It can reduce the weight, save 20 ~ 40% of the metal, and realize the industrial mechanized construction. Using steel pipe to manufacture highway bridge can not only save steel, simplify construction, but also greatly reduce the area of protective coating and save investment and maintenance cost.

The material classification
Steel pipe can be divided into carbon pipe, alloy pipe, stainless steel pipe and so on.
Carbon pipe can be divided into ordinary carbon steel pipe and high quality carbon structure pipe.
Alloy tube can be divided into: low alloy tube, alloy structure tube, high alloy tube, high strength tube. Bearing tube, heat and acid resistant stainless tube, precision alloy (such as cutting alloy) tube and high temperature alloy tube, etc.
Connection type classification
Steel pipe can be divided into light pipe (pipe end without thread) and wire pipe (pipe end with thread) according to the connection mode of pipe end.
Wire tube is divided into: ordinary wire tube and tube end thickened wire tube.
Thickening wire pipe can also be divided into: outer thickening (with external thread), inner thickening (with internal thread) and inner and outer thickening (with internal and external thread) and other ground wire pipe.
If the thread type can also be divided into: ordinary cylindrical or conical thread and special thread and other ground thread tube.
In addition, according to the needs of users, wire pipes are generally equipped with pipe joints delivery.
Classification of plating characteristics
According to the surface coating characteristics of steel tube can be divided into: black tube (not coated) and coated tube.
Galvanized pipe, aluminum pipe, chromium pipe, aluminized pipe and other alloy layer of steel pipe.
Coating pipe has outer coating pipe, inner coating pipe, inner and outer coating pipe. Commonly used coatings are plastic, epoxy resin, coal tar epoxy resin and a variety of glass anti-corrosion coating materials.
Galvanized pipe is divided into: KBG pipe, JDG pipe, threaded pipe and so on.