Stainless steel seamless pipe is a steel pipe that is resistant to weak corrosive media such as air, steam, and water, as well as chemical corrosive media such as acid, alkali, and salt. Also known as stainless and acid resistant steel pipe.
Firstly, the thicker the wall thickness of the product, the more economical and practical it is. The thinner the wall thickness, the higher its processing cost will be; Secondly, the process of this product determines its limited performance. Generally, seamless steel pipes have low accuracy, such as uneven wall thickness, low surface brightness inside and outside the pipe, high sizing cost, and difficult removal of pitting and black spots on the inner and outer surfaces; Thirdly, its detection and shaping must be processed offline. Therefore, it demonstrates its superiority in high pressure, high strength, and mechanical structural materials.
Stainless steel seamless pipe is a steel pipe that is resistant to weak corrosive media such as air, steam, and water, as well as chemical corrosive media such as acid, alkali, and salt. Also known as stainless and acid resistant steel pipe.
The corrosion resistance of stainless steel seamless pipes depends on the alloying elements contained in the steel. Chromium is a fundamental element that gives stainless steel corrosion resistance. When the chromium content in steel reaches about 12%, chromium reacts with oxygen in the corrosive medium to form a thin oxide film (self passivation film) on the surface of the steel, which can prevent further corrosion of the steel substrate. In addition to chromium, the commonly used alloy elements for seamless stainless steel pipes include nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of various applications for the structure and properties of stainless steel.
Stainless steel seamless pipe is a hollow, elongated circular steel material widely used in industrial conveying pipelines and mechanical structural components such as petroleum, chemical, medical, food, light industry, mechanical instruments, etc. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacturing of mechanical parts and engineering structures. It is also commonly used to produce various conventional weapons, gun barrels, shells, etc.
Production process of stainless steel seamless steel pipes
a. Preparation of round steel; b. Heating; c. Hot rolled perforation; d. Cutting the head; e. Acid washing; f. Grinding; g. Lubrication; h. Cold rolling processing; i. Defatting; j. Solid solution heat treatment; k. Straightening; l. Cut the tube; m. Acid washing; n. Finished product inspection.
