1 Square tube performance index - plasticPlasticity refers to the metal material in the loading, the plastic deformation (permanent deformation) without the capacity to destroy. 2 Square tube performance index analysis - hardnessSteel pipe hardness is a pointer to measure the hardness of the metal m

In recent years, offshore deep-water dock project has been large-scale construction in the domestic coastal, as the bearing capacity of the pile of deep-water wharf, commonly used spiral weld large diameter piling pipe; In addition, bridges, roads, high-rise buildings also need piling pipe.Besides,

Oil and gas pipeline measures 14 to 42 inches in diameter, but is usually 20 to 36 inches. It is often composed of 40-foot lengths but lengths may be as long as 60 or 80 feet. The pipe is wrapped and coated for protection against corrosion, especially since it runs underground. About half of all gas

Seamless steel pipe has a very important position in China's steel industry, the low-pressure boiler tubes and high pressure boiler tubes also plays a important role in the seamless steel pipe. Their application environments are relatively poor and have requirements on temperature and pressure , so

Related terms are defined as follow: HOLDThe relevant inspectors shall be informed of time and location of testing and witnessing is required for each unit. Witnessing is mandatory the cycle and written notice through a registered check advice at least 2 week in advance for special inspection or imp

Heavy duty epoxy thermosetting powder coating, also known as fusion bonded epoxy powder coating, referred to as FBE, which is a kind of air as a carrier for transport and dispersion of solids coatings applied to iron and steel products in the preheated surface, melting, leveling, curing to form a un

Pipeline welding is used in welding, fusion welding pipes and pipeline manner, pipe and pipe fittings to connect.The three elements of pipeline weldingBi-metal wear on piping construction, though the operation is simple and easy to master, but both hot melt connection and fused connection procedure

Pipe wall thickness control is a difficult in steel pipe production, measures to improve the production of wall thickness precision mainly includes the following aspects:1, Tube heatingHeat uniformly prohibit rapidly elevating temperature. Each heating and cooling to maintain a slow and steady, the

Precision cold drawn tube (extubation fine) uses seamless steel pipe material as raw materials processing tolerance control and bright surface of a high-precision cold drawn tube. Precision cold drawn tube with a high precision, high finish, the inner wall of cleanliness steel pipe to withstand high

Coated steel pipe is the pipe based as the matrix melt spray or adsorption food-grade epoxy powder coating or PE raw materials at high temperature curing from new materials, through a special process in the wall. Coated steel pipe is with excellent corrosion resistance and frictional resistance. Epo