The quality and performance of the stainless steel pipe are determined according to the needs, and different elements are required for different needs. The higher the carbon content of carbon, the higher the hardness of the steel, but the worse its plasticity and toughness. Sulfur is a harmful impurity in steel. When steel with high sulfur content is subjected to pressure processing at high temperature, it is easy to be brittle and is usually called hot brittleness.
Phosphorus can significantly reduce the plasticity and toughness of steel, especially at low temperatures. This phenomenon is called cold brittleness. In high quality steel, sulfur and phosphorus should be strictly controlled. However, from another point of view, the inclusion of higher sulfur and phosphorus in low carbon steel can make the cutting easy to break, which is beneficial to improve the machinability of steel.
Manganese can increase the strength of chemical fertilizer pipes, can weaken and eliminate the adverse effects of sulfur, and can improve the hardenability of steel. High alloy steel (high manganese steel) with high manganese content has good wear resistance and other Physical properties, silicon can increase the hardness of steel, but the plasticity and toughness are reduced. The steel used in electrical engineering contains a certain amount of silicon, which can improve the soft magnetic properties.
The mechanical surface of the 304 seamless steel pipe is mechanically polished with rotation and straight line polishing. 304 seamless tube heat resistance refers to the performance of oxidation resistance or resistance to gas medium corrosion at high temperature, that is, thermal stability, and at the same time, it has sufficient strength, that is, heat strength. Effect of carbon Carbon in austenitic stainless steel is an element that strongly forms and stabilizes austenite and enlarges the austenite.
The ability of carbon to form austenite is about 30 times that of nickel. Carbon is a kind of interstitial element. Solution strengthening can significantly improve the strength of austenitic stainless steel. Carbon can also improve the corrosion corrosion resistance of austenitic stainless steel in high concentration chloride (such as 42% MgCl2 boiling solution). Corrosion inhibitor is adsorbed on the surface of 2520 stainless steel tube. Forms a continuous adsorption film that acts as a barrier between the corrosive medium and the 304 seamless tube, preventing corrosion of the 304 seamless tube.
In recent years, the use of stainless steel seamless pipes has become increasingly widespread. In the early days, stainless steel seamless pipes were used in construction only for certain occasions, where architects were looking for a new material with special effects when it was thought that there was no suitable material. The manufacturer believes that stainless steel materials are used in outdoor applications and do not corrode even under the conditions of highly corrosive gases.
Stainless steel seamless tubes are both durable and virtually maintenance-free, making them more important than ever before. The price of most building materials has risen rapidly in a certain proportion, and many materials have risen far more than stainless steel seamless pipe materials. The cost of maintaining and maintaining a good structure inside and outside the building is even more dramatic. Because this material is easy to form, durable and beautiful, many architects choose stainless steel seamless pipe not only as a protective layer, but as an integral part of the overall design.
It has a variety of strength-to-weight ratios to suit a variety of building structural requirements. In addition, different grades of surface finishes provide a range of options for a variety of building facilities to meet actual needs. The bold concept of the architect will make the application of stainless steel seamless pipes in the construction industry increasingly widespread.
