The corrosion of stainless steel pipe is mainly caused by the material properties, surface conditions, medium properties, pH value, temperature, flow rate and time. In addition, the factors affecting the properties of stainless steel include composition, crystal structure and passivation. Membrane and so on. The composition and crystal structure of the stainless steel pipe and the contained […]
Cause of point corrosion in passivation state of stainless steel pipe
Stainless steel pipe in the passivated state will still have a certain ability to react because the passive film is always in a dynamic equilibrium state of dissolution and repair and passivation. When the stainless steel pipe contains the active anion in the environmental media, the equilibrium state is easily destroyed, and the dissolved state at […]
What are the three aspects of the solid solution treatment of stainless steel pipe?
The solution treatment of stainless steel pipes are very powerful, mainly reflected in three aspects. The following is a detailed description of austenitic stainless steel pipes. The austenitic stainless steel tube is softened by solution treatment. Usually, the stainless steel tube is heated to a temperature range of 950-1150°C and held for a certain period of time, so that […]
The operating points of passivation treatment for stainless steel pipe
When do stainless steel pipe need passivation? Conventionally, when the stainless steel pipe is corroded after the welding process and subjected to strong pollution, it must be passivated. The preferred passivation method is as follows. In the case of stainless steel pipe sections with straight pipes and without branch pipes and hand-operated stainless steel pipes and fittings, […]
Production characteristics of stainless steel seamless pipe
In the production process of stainless steel seamless pipe, it is necessary to pay attention to the production characteristics of the pipe. As long as these characteristics are fully utilized, the quality of the stainless steel pipe produced can be as good as possible. Plastic characteristics of stainless steel pipe The martensitic stainless steel is not difficult […]
What should be paid attention to in the process of storage and transportation of stainless steel pipes
When the stainless steel pipe is packed and transported, it is necessary to act according to scientific and reasonable rules to maximize the integrity of the stainless steel pipe in the course of travel. The following are the rules of operation. When storing stainless steel pipes, stainless steel pipes can’t be directly stacked on the ground, steel […]
What aspects should be paid attention to in the packaging and transportation of stainless steel pipes
Stainless steel pipes should have different forms of packing according to their product type, finish, size and transportation mode. Because the stainless steel pipe is usually the pipe, the pressure pipe, the mechanical pipe and the decorative pipe, and the stainless steel pipe can be processed, annealed and pickling, cold working, grinding and polishing and decorating, […]
Precautions when connecting stainless steel pipe to other fittings or flanges
In the practical application of stainless steel pipes, there will be no other stainless steel pipes or flanges, fittings. At this time to meet the requirements of the use, it is necessary to ensure that the quality of the butt joint between the stainless steel pipe and the butt parts reaches a certain standard, and the […]
Cold stamping and bending process of stainless steel lap joint stub end
There are mainly two kinds of cold stamping and bending methods for stainless steel lap joint stub end, one is spinning method, the other is drawing and spinning combined method. Pure use of cold pressure forming, bending the top shape, it is difficult to achieve through the mold, although the use of spinning can also be […]
Types and Solutions of Cracks in Welding of Stainless Steel Pipes
During the welding process of stainless steel pipes, cracks sometimes occur in the weld zone. According to the time and temperature of formation, there are mainly three forms of cold cracks, hot cracks and reheat cracks; according to the formation site, it can be divided into vertical cracks, transverse cracks, Weld root cracks, arc pit cracks, […]
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