Steel pipe inside and outside the wall high precision, high finish, heat treatment after the steel pipe without oxidation layer, the wall cleanliness, steel pipe to withstand high pressure, cold bending is not deformed, flaring, flattening no cracks, can make a variety of complex deformation and mechanical processing. Steel color: white with bright, with a high metallic luster.
The development of steel pipe production technology began in the rise of bicycle manufacturing, the development of oil in the early 19th century, the manufacture of ships, Steel Pipe boilers and aircraft during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of chemical industry, Oil and gas drilling and transportation, are strong to promote the steel industry in the variety, yield and quality of the development.
Steel pipe is not only used to transport fluid and powdery solid, exchange heat, Steel Pipe manufacture mechanical parts and containers, it is also an economic steel. With steel pipe manufacturing building structure grid, pillars and mechanical support, can reduce the weight, save metal 20 ~ 40%, and can realize the mechanization of factory construction. Manufacture of road bridges with steel pipes not only saves steel, simplifies construction, Steel Pipe but also greatly reduces the area of coated protective coatings, saving investment and maintenance costs.
The steel pipe can be classified according to the rolling process, whether there is a seam and a cross-sectional shape. According to the rolling process classification, the steel pipe can be divided into hot-rolled steel pipe and cold-rolled steel pipe; according to whether the steel pipe seam classification, Steel Pipe steel pipe is divided into seamless steel pipe and welded steel pipe, which commonly used welded pipe by weld type can be divided into high-frequency welded pipe , Straight seam submerged arc welded pipe, spiral submerged arc welded pipe 3 kinds.
The pipe is durable
Steel chemical stability, cold, heat, pressure, corrosion resistance and fire resistance and other characteristics in one, can be used in different environments for a long time. Steel Pipe The service life of the pipe can be as long as the life of the building, or even longer.
Steel pipe safe and reliable
Steel pipe set metal pipe and non-metallic pipe in one. It is harder than plastic pipe, with the general strength of the metal it is easier than the general metal bending, Steel Pipe toughness and high ductility, with excellent anti-vibration, impact resistance and frost resistance. The steel pipe can withstand extremely cold and extremely hot temperatures, from -196 degrees to 250 degrees for a wide range of applications, and adapt to the temperature changes (- high temperature - low temperature - high temperature -), the use of performance will not be due to long-term use and temperature changes Reduce, will not produce aging phenomenon. Steel Pipe This is the ordinary pipe can not and. The linear expansion coefficient of the steel pipe is very small, is plastic pipe 1/10, can be anti-fatigue. Steel Pipe In the temperature of the steel pipe will not produce excessive thermal expansion and contraction caused by stress fatigue rupture. These features make copper tubes in cold areas of the application of great advantages. In the cold area, the temperature difference is large in the morning and evening, and the linear expansion coefficient of ordinary pipe is large and the strength is low, and the stress fatigue cracking caused by thermal expansion and contraction is very easy. Steel Pipe Some known -20 degrees is not brittle, but in fact can not bear the work pressure, and the service life is very short, do not have practical significance, although you can use insulation measures, but in the transport, storage and installation process encountered low temperature is difficult to avoid, The performance at -183 degrees is the same at room temperature.
Steel pipe health
Plastic contains "plasticizer" and other chemical additives, will change with time and temperature changes, resulting in plastic hardening and embrittlement. Steel pipe is no plastic pipe of various modifiers, additives, additives and other chemical composition. Biological studies have shown that E. coli in water can no longer continue to multiply in steel pipelines; more than 99% of the water bacteria are completely killed after 5 hours into the copper pipeline. Steel pipe structure is extremely dense, with impermeability. Whether it is grease, bacteria, viruses, Steel Pipe oxygen and ultraviolet light and other harmful substances can not pass through it and pollute the water quality. In addition, the steel pipe does not contain chemical additives, Steel Pipe will not burn the release of toxic gases to suffocate. The recycling of steel is conducive to environmental protection, is the sustainable development of green building materials.
Strong connection of steel pipe
Many kinds of pipe on the market, the interface fittings are mostly steel, even if some pipe parts can not use steel parts, it is in the interface with the faucet or have a steel parts. However, Steel Pipe if the pipe fittings and other pipe connected, due to the different materials and pipe fittings, thermal expansion and contraction of the physical and mechanical properties vary widely, the connection of the natural degree of natural to be subject to additional challenges. Therefore, the steel pipe and steel fittings connected, the firmness will be greatly enhanced.