The high voltage bend is a kind of pipe that is used for the bends of the high pressure pipe. The proportion of all fittings used in high pressure piping system is large, about 80%. The wall thickness of general high pressure bend is thicker than ordinary elbow, or the strength of the material is higher than the normal elbow. High pressure, high pressure, in general oil pipeline, liquefied gas pipeline, water pipeline and so on can see it.

The high-voltage bending materials are usually made of high quality cast steel, carbon steel, stainless steel or alloy steel, which can withstand high pressure and withstand the corrosion of the fluid in the pipeline. High-voltage elbow material is the core of the new material field, which plays an important role in promoting and supporting the development of high and new technology. In the research field of new materials in the world, the wear-resistant material is about 85%. With the coming of information age, special wear-resistant materials for the development of high and new technology plays an important role in promoting and supporting, is the 21st century, information, biology, energy, environmental protection, the space key materials in the field of high technology, become the focus of the field of new materials research and development around the world, is also a strategic competition in the world high technology development hot spot.

The high voltage bend not only has good compression ability, but also needs to have other excellent characteristics in different piping systems. The high pressure bend in the chemical raw material conveying pipe system has the ability of anti-corrosion and anti-acid and alkali, besides the high pipe pressure.

The high-pressure bending resistance generally applies to pipeline systems in oil, natural gas, chemical, hydropower, fire, construction and boiler industries.