1. The main features of seamless steel pipe are welding without seam and can bear great pressure. The products can be made from rough casts or cold drawn parts. 2.Precision steel pipes appear just in recent years, and there are strict tolerance and roughness between the inner hole and the outer wall size. Cold drawn precision...

Fertilizer pipe is mainly used for transporting high temperature and high pressure fluid. Pipes for fertilizer: GB6479-2000(seamless steel pipe for high pressure fertilizer equipment). It is mainly used for high-temperature and high-pressure chemical equipment. The typical kinds of materials are 20, 16Mn, 12CrMo, 12Cr2Mo,...

Choose the right site and warehouse: 1) The site and warehouse for storing steel products should be clean, with good drainage, and away from factories and mines which produce harmful gases or dust. Weeds and other stuff should be removed in order to keep the steel clean.  2) Steel products should not be put with acid,...

1. Welded steel pipe(GB/T3092-1993) is used for transporting low-pressure fluid, commonly known as black steel pipe. It is applied to low pressure fluid such as  water, gas, air, oil and heating steam, as well as other fields. Steel pipe is classified into ordinary steel pipe and heavy steel pipe based on wall thickness;...

The performances of square tube 1. The analysis of plasticity of square tube  Plasticity refers to the plastic deformation(permanent deformation) of metal material under the action of the load, which can not be damaged. 2. The analysis of hardness of square tube  Hardness is a measure of softness and hardness...

Boiler steel pipes have two open ends with hollow section, which are classified into seamless steel pipe and welded steel pipe. We use the size, for example diameter, length and wall thickness to show the specification of boiler pipe. Boiler steel pipe has a big size range, from the tiny pipe with very small diameter to...

The stainless steel pipe is a kind of hollow long circular steel, mainly used for oil, chemical, medical care, food, light, machinery and instruments industries' transportation pipeline and mechanical parts. Also, it is widely used for the fabrication of mechanical parts, engineering structures, conventional weapons,...

PE pipe is used in agricultural and industrial fields and is commonly used in the application of construction industry, such as drain-pipe buried in the ground, gas piping. PE pipe is mainly used for urban gas supply, urban water supply, and farmland irrigation conservancy, etc.  Main features of PE pipes: it is the...

9 matters need attention for pipe cutting operation​ 1. The dust removal device of cutting machine should be in good condition before cutting.   2. The spindle speed should be carried out after stopping running. When changing speed, gears should mesh to fully. When the machine tool is abnormal, immediately stop and...

Due to gas has increasing influence on heat exchange tube, heat exchange tube heat protection has become an important work of power plants. Heat exchange plate engineering anti-corrosion and its coating are keys to the whole process. Heat exchange tube heat transfer piece generally requires no water seepage, corrosion,...

The coating process of double fusion bonded epoxy powder coating is simple. This process can be conducted on the basis of the fine-tuning on the original single fusion bonded epoxy powder coating equipment, namely dividing spray gun into three groups. The first group sprays the inner powder; the second group sprays outer...

Carbon steel pipe is made from ingot or solid round steel after perforation, then though hot rolling, cold rolling or cold calling. Carbon steel pipe plays an important role in China's steel industry. Classification Carbon steel pipe can be divided into two categories: hot and cold rolled (pull) steel. Hot-rolled carbon...