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Best selling Seamless Black Steel Tube Pipe
Seamless Black Steel Tube
The surface of the seamless black steel tube has no weld seam, has high strength, toughness and good workability, and can withstand high pressure and temperature.
Material Classification
The materials of black square steel pipe mainly include the following:
Ordinary carbon steel: C content is generally below 0.25%.
Low-alloy structural steel: alloy content not more than 5%.
Alloy steel: contains more alloying elements.
These steels are processed and directly cold-drawn into seamless steel pipes without any dissolution heat treatment.
Manufacturing process
The manufacturing process of best selling seamless black steel pipe consists of the following steps:
Round steel piercing: a whole round steel is used for piercing.
Cold drawing: The pierced steel pipe is cold drawn to form a seamless steel pipe.
Processing: Further processing treatment, such as phosphating and galvanising, is carried out as required.
Fields of application
Carbon seamed steel pipe is widely used in the following fields due to its high strength, reliability and good workability:
Petroleum, chemical industry: Rectangular carbon hollow section tube for transporting high-pressure fluids.
Aviation, nuclear power: Low price seamless pipe tube used to withstand high temperature and pressure environment.
Construction, machinery, automobile manufacturing: Carbon steel seamless round used for a variety of structural and mechanical components.
