What are MP stainless steel pipes, AP stainless steel pipes, BA stainless steel pipes, and EP stainl

Stainless steel pipes. Grade classification: AP, MP, BA, EP AP pickling.

Treatment of acid pickling utilizes nitric acid.

with fluoric acid and other acidic solutions.

Remove the oxide layer of the steel pipe. Cheap and fast but easy to cause grain boundaries.

Corroded and coarse on the inner and outer surfaces.

It is easy to have suspended impurities attached.

MP: Mechanical polishing is often used for the oxide layer on the surface of steel pipes

The brightness and effect of holes and scratches depend on the type of processing. In addition after mechanical polishing.

Although it is more beautiful, it will also reduce corrosion resistance, so when used in corrosive environments, it needs to be passivated.

Reason. Moreover, there are often polishing material residues on the surface of the steel pipe.

BA stands for Bright Annealing) steel pipes will definitely need oil during the pumping process.

Grease lubrication and grain deformation due to processing. In order to prevent this grease from remaining in the steel pipe, in addition to cleaning the steel pipe, argon can be used to act as argon gas when annealing at high temperature to eliminate deformation.

The atmosphere in the furnace is further cleaned by the combined combustion of argon and carbon and oxygen on the surface of the steel pipe.

It produces a bright surface effect, so this uses pure argon annealing, heating and rapid cooling to brighten the smooth surface.

The method is called glorious annealing, although this method is used to brighten the surface to ensure that the steel pipe is fully clean.

There is no external pollution. However, the brightness of this surface will have a mixed surface if compared with other polishing methods, such as mechanical, chemical, and electrolytic. Of course, its effect is also related to the argon content and heating.

number of times.

EP stands for Electropolishing.

Electro polishing is the use of anodic treatment.

By electrochemistry.

The principle of adjusting voltage, current, acid composition, and polishing time is appropriate.

It can not only make the surface bright, smooth and clean, but also improve the corrosion resistance of the surface.

Therefore, it is the best way to brighten the surface, and of course, the cost and technology are also increased. But because of electrolysis.

Polishing will highlight the original state of the surface of the steel pipe, so if there are serious scratches and holes on the surface of the steel pipe.

AP stands for acid pickling, which uses acidic solutions such as nitric acid and fluorine acid to remove the oxide layer of the steel pipe.

MP stands for Mechanical Polishing, which is commonly used for oxide layers, holes and scratches on the surface of steel pipes, and its brightness and effect depend on the type of processing.

BA is Guanghui annealed steel pipe, in the process of pumping, it will definitely need grease lubrication, and the grain will also be deformed due to processing.

EP stands for electropolishing) Electrolytic polishing is the use of anodic treatment, through the principle of electrochemistry to properly adjust the voltage, current, acid composition, and polishing time.

Stainless steel pipe is a hollow long round steel, is an economical section steel, is an important product in the steel industry, which is divided into two categories: seamless pipe and welded pipe according to the production mode.

According to the material, it is divided into ordinary carbon steel pipes, alloy steel pipes, bearing steel pipes and other categories, which are safe and reliable, hygienic and environmentally friendly, economical and applicable, resistant to weak corrosive media such as air, steam, water and chemical corrosive media such as acid, alkali and salt, and are widely used in petroleum, chemical, medical, food, light industry, machinery and instruments and other industrial transportation pipelines and mechanical structural components.

MP Mechanical Polish Pickling Tube+External Polishing AP Annealed and Pickled Pickling Tube, BA Bright Annealed Tube, EP Electrolytic Polish, Professional Stainless Steel Seamless Tube Manufacturer, Cao Qiwei 15800355535