Physical properties
High strength: Stainless steel pipes are usually made of a mixture of various metal elements such as iron, chromium, and nickel in a certain proportion. Through alloying design and advanced production processes, such as quenching, tempering and other heat treatment processes, the grain structure can be refined, the cohesion of the material can be enhanced, and its tensile strength, yield strength and hardness are all high. For example, the tensile strength of 304 stainless steel pipes is twice that of steel pipes and 8-10 times that of plastic pipes.
Excellent toughness: Stainless steel pipes have excellent ductility and fracture toughness. They can absorb a lot of energy without breaking immediately when subjected to impact or dynamic loads. In earthquake-prone areas, buildings constructed with high-toughness stainless steel pipes can better withstand the impact of seismic waves and reduce structural damage and casualties.
Good heat resistance and thermal insulation performance: The thermal conductivity of stainless steel pipes is 1/25 of that of copper pipes and 1/4 of that of general steel pipes. The thermal expansion coefficient is similar to that of copper pipes and 1.5 times that of ordinary steel pipes. It has the characteristics of slow thermal expansion and slow cold contraction, and is very suitable for hot water transportation.
Long service life: The service life of stainless steel pipes can reach 70-100 years, which is equivalent to the life cycle of buildings, far exceeding plastic pipes (need to be replaced every 15-20 years) and galvanized pipes (easy to corrode and rust).
Chemical performance characteristics
Strong corrosion resistance: Stainless steel contains chromium, and the chromium content is not less than 10.5%. It can produce a passivation effect with oxidants, forming a tough and dense chromium-rich oxide protective film on the surface of stainless steel, which can effectively prevent further oxidation reactions, making it resistant to weak corrosive media such as air, steam, and water, and can also resist corrosion from chemical media such as acids, alkalis, and salts.
Health and hygiene: The heavy metal precipitation of high-quality stainless steel pipes (such as 304 and 316 grades) is extremely low and has almost no effect on the human body. At the same time, stainless steel pipes must pass 3A, DIN, ISO and other international health standards certification, and the roughness of the contact surface with the medium is Ra≤0.8μm, which prevents dirt adhesion and bacterial growth, and can ensure the purity of water and ensure drinking water safety.
Processing and appearance characteristics
Easy processing: Stainless steel pipes are easy to process and can be customized according to customer needs to produce various shapes and specifications, such as bending, welding, cutting, etc., to meet various engineering needs. During the processing, the metal properties of stainless steel pipes are stable, and it is not easy to deform or crack, which improves production efficiency and product quality.
Beautiful appearance: The surface of stainless steel pipes is smooth, with a metallic luster, and the appearance is neat and beautiful. It can be used in architectural decoration, furniture manufacturing and other fields to enhance the overall aesthetics of the product. Moreover, its surface is not easy to produce rust spots, stains, etc., and it can still maintain a good appearance after long-term use.
Environmental adaptability characteristics
Low maintenance cost: Stainless steel pipes require almost no anti-corrosion coating or regular maintenance, and they will not scale or leak after long-term use, significantly reducing operation and maintenance costs.
Recyclability: Stainless steel pipes are easy to disassemble and can be 100% recycled and reused, which meets environmental protection requirements and can truly be green and pollution-free.
Strong environmental adaptability: From polar low temperatures to desert high temperatures, stainless steel pipes can maintain stable performance and reduce failures caused by environmental factors