Hot-rolled seamless steel pipe: Hot rolling is relative to cold rolling, cold rolling is rolling below the recrystallization temperature, and hot rolling is rolling above the recrystallization temperature.Advantages of hot rolled seamless steel pipe:It can destroy the casting structure of the steel
1) Sizes of steel wire, steel bars, in-diameter steel pipes, wire ropes, etc. can be expected in a well-ventilated storage shed, but the bottom layer needs to be thatched.2) Some enterprises and small companies can store steel products, thin steel plates, steel strips, silicon steel sheets, small-di
The stages of the mechanical expansion process of large-diameter steel pipes:The steel plate is first pressed into a U shape and then into an O shape in the forming mold, and then internal and external submerged arc welding is performed. After welding, the diameter is usually expanded at the end of
In our lives, the use of spiral steel pipes is very extensive, and they can be used in almost every industry, such as drainage, water supply, and gas transportation for petroleum gas, liquefied petroleum gas, and coal gas. As a building structure, it has many uses, and the stability of spiral steel
With the continuous development of our country's economy, the country is vigorously developing the energy industry. Long-distance API oil and gas pipelines are an important way to ensure energy security. During the anti-corrosion construction process of oil (gas) pipelines, the surface treatment of
1. Petrochemical: Crude oil, refined oil, petrochemical raw material, and finished product delivery pipes and oilfield pipe network.2. Natural gas: submarine and onshore long-distance pipelines; gas pipelines at gas receiving stations; gas fields and urban natural gas pipeline networks.3. Coal: tran
Thin-walled seamless steel pipes are made of steel ingots or solid tube blanks that are perforated into capillary tubes and then made by hot rolling, cold rolling, or cold drawing. Thin-walled seamless steel pipes play an important role in my country's steel pipe industry. Thin-walled seamless steel
(1) Welding connection of 3PE anti-corrosion steel pipeIf there is no need to disassemble, then welding can be used. This is a relatively traditional connection method, with a simple structure, and components of any method can be directly connected; economical materials, no weakening of the cross se
