Seamless stainless steel pipe is a long hollow steel pipe with a hollow cross-section without joints. It is a steel pipe that resists corrosion by weakly corrosive media (e.g. air, steam, water) and chemically aggressive media (e.g. acids, alkalis and salts). Also known as stainless steel acid resistant steel pipe. The thicker the wall thickness of stainless steel seamless steel pipe, the more economical and practical it is, and the thinner the wall thickness, the more its processing cost will rise significantly. Secondly, the process of the product determines its limited performance. Generally for seamless steel pipe low precision: uneven wall thickness, low brightness inside and outside the tube, high sizing cost, inside and outside there are not easy to remove the pits and black spots.
In the processing of stainless steel seamless steel pipe, it is very important to do a good job of pickling and passivation treatment of stainless steel pipe. Only good pickling and passivation treatment can ensure its excellent performance. Let us understand the correct pickling and passivation method for stainless steel seamless steel pipe.
Stainless steel seamless steel pipe
Pickling and passivation of seamless stainless steel pipe uses organic solvents and moisturizing emulsions to clean the surface of welded tubes for bottom-pressure hydrodynamic transfer to remove oil, vegetable grease, dust, lubricating fluids and similar organic compounds. On steel surfaces, it is used only as an adjunct to corrosion-resistant fabrication.
While chemical water treatment of seamless stainless steel pipe can make the surface clean and unsmooth to a certain level, its steel anchor line is shallow and can easily contaminate the natural environment of the spiral welded pipe. Different methods and approaches to rust removal can cause serious harm to seamless stainless steel pipes and jeopardize many characteristics and elements. Therefore strict requirements and compliance with certain standards and methods are required throughout the cleaning process to ensure excellent expression of use value in the application.
From manufacturing to sewage and organic waste gas collection system software, the important aspects of the pickling and passivation line for seamless stainless steel tubes are subject to significant corrosive conditions. Therefore, the choice of anticorrosive coatings is relevant to all normal applications of mechanical equipment, wooden floors in the production hall, piping trenches, and sewage and organic waste gas collection system software.
Therefore, this point should be noted when pickling and passivating seamless stainless steel pipes to ensure their performance.