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galvanized steel pipe

Galvanized steel pipe is divided into cold galvanized steel pipe and hot-dip galvanized steel pipe. Cold galvanized steel pipe has been banned, and the latter is also advocated by the state to be used temporarily. In the 1960s and 1970s, developed countries in the world began to develop new pipes, and galvanized pipes were banned one after another. China's Ministry of construction and other four ministries and commissions have also made it clear that galvanized pipes have been banned as water supply pipes since 2000. Galvanized pipes are rarely used in cold water pipes in new communities, and galvanized pipes are used in hot water pipes in some communities. Hot dip galvanized steel pipe is widely used in fire fighting, electric power and expressway.

Special shaped steel pipe

YuantaiDerun provides high quality Special shaped steel pipe products for global purchasers and project providers,Special shaped steel pipe is the general name of steel pipes with other section shapes except circular pipe and square pipe. According to the different shape and size of steel pipe section, it can be divided into equal wall thickness special-shaped steel pipe (code D), unequal wall thickness special-shaped steel pipe (code BD) and variable diameter special-shaped steel pipe (code BJ).

LSAW steel pipe

LSAW steel pipe (abbreviated as LSAW) is a professional expression of longitudinal submerged arc welding steel pipe. It is a pipe produced by using a single medium thick plate as raw material, pressing (rolling) the steel plate into a pipe blank in a die or forming machine, and expanding the diameter by means of double-sided submerged arc welding.

spiral steel pipe

Spiral steel pipe is a spiral seam steel pipe made of strip steel coil as raw material, often formed by warm extrusion and welded by automatic double wire double-sided submerged arc welding process. The spiral steel pipe sends the strip steel to the welded pipe unit. After rolling by multiple rollers, the strip steel is gradually rolled up to form a circular pipe blank with opening gap. Adjust the reduction of the extrusion roller to control the weld gap at 1 ~ 3mm and make both ends of the welded junction flush.

ERW steel pipe

"ERW steel pipe" is a straight seam resistance welding pipe in English, abbreviated as ERW. It is used to transport oil, natural gas and other vapor-liquid objects. It can meet various requirements of high and low pressure, and plays an important role in the field of transmission pipes in the world.

seamless steel pipe

Seamless steel pipe is rolled into round steel with steel ingot, obtained through hot piercing, and then made into seamless pipe by hot rolling, cold rolling or cold drawing.Seamless steel pipe is known as the "blood vessel" of industry. It is an important raw material for national industrial construction and national defense construction. It is needed everywhere and cannot be separated from it, no matter manufacturing aircraft, ships, trains, automobiles, boilers, power stations, oil, steam and water transportation, or developing mineral resources for geological drilling. It can be said that without seamless steel pipe, many industrial development such as petroleum, chemical industry, steel, machinery, military industry, aerospace and so on will be out of the question.


Pipeline pipe: the oil, gas or water pumped out of the ground is transported to oil and natural gas industrial enterprises through pipeline pipe. Pipeline pipe includes seamless pipe and welded pipe, and its pipe end has flat end, threaded end and socket end; The connection methods are end welding, coupling connection, socket connection, etc.

stainless steel pipe

Stainless steel pipe is a kind of hollow long cylindrical steel. Its scope of application is used as a pipeline for conveying fluid. It is mainly used in industrial transmission pipelines such as petroleum, chemical industry, medical treatment, food, light industry, machinery and instruments, as well as mechanical structural components. Stainless steel pipes are made of steel billets of acid and heat resistant grades through heating, perforation, sizing, hot rolling and cutting.

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