What Is Decarburization And Precaution Of OCTG Casing And Tubing

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What Is Decarburization And Precaution Of OCTG Casing And Tubing

Decarburization is reduction of carbon content in the surface when steel heated. The process of decarburization is carbon in steel produce methane or carbon monoxide with hydrogen or oxygen at high temperature.

What Is Decarburization And Precaution Of OCTG Casing And Tubing

Impact analysis

Influence for forging and heat treatment

The heating temperature of stainless steel is too high, so that the surface of the forging is greatly reduced and it’s easy to crack when fall into a pattern.

After austenitic decarburization, the surface of  the tubing  will not form uniform austenite. Not only the strengthen of cold deformation is not up to the requirements, but also crack generation by inhomogeneous deformation.Different tissues will cause a lot of stress when quenching and the strength of surface will decline after decarburization. Even in the quenching process, sometimes it cause crack on the surface.

2017-10-26T10:27:21+08:00 November 5th, 2017|