When hearing of API steel pipe, nearly all of us will feel unfamiliar about it and the reason is simple, that is most of us do not live close to oil well, so, it is usual that we have less knowledge about the API steel pipe.

In recent years, with the surface quality continuous improvement of hot dip galvanized, the coating quality of the galvanized sheet has also been greatly improved.

Precision steel casting technology was originally used in a vertical continuous casting machine, which is an important part of the production of ingots, can greatly save operating costs. Curved new caster caster is improved, since it is possible to further lower the production cost savings, thus playing an increasingly important role.

Post weld heat treatment is to improve the organization and properties of welded joints or eliminate residual stress and heat treatment carried out. Commonly used methods are normalized or normalized and tempered with two stress elimination process.

Structural steel pipe racks typically support pipes, power cables and instrument cable trays in petrochemical, chemical and power plants.

Hot expansion steel pipe mandrel surface pulsating spray device is a device to a thermal expansion pipe mandrel surface spray lubricant,which is characterized by injection device body ring parts with lubricant reservoir burglary

An on board to guide rails can be welded on the foundation, or with screws, then push the inside rail nut orbit and turn 90 degrees and the lower half of the body embedded tube clamp nut, put the need fixed pipe, add the upper half of the pipe clip body and cover with screws.

Generally the billet is plastically deformed at a certain temperature environment, through a dedicated mold, the metal to produce a continuous smooth flow of the process to achieve the deformed geometry requirements.

Oil and gas pipeline corrosion in the soil is a very slow process, and how to obtain reliable corrosion rate data in a short time, is carried pipeline corrosion life prediction of an important basic research.

Weld shape refers weld seam geometry parameters indicated.

How it works: a variety of abrasive wear is wear the most serious form of wear and tear, and its essence is due to the hard metal surface abrasive cutting or chipping action results. Abrasive particles penetrate the metal surface plastic deformation and wear scar until the metal surface abrasion. Our company has developed.

Submerged arc welding is higher production efficiency today mechanized welding method, one of its high production efficiency, the weld quality is stable. However, due to inappropriate technology developed, often forming bad, undercut, lack of fusion, slag, porosity, cracks and other defects occur.