Oil and gas are the world's main energy sources. The transportation link of energy plays an important role in the whole energy development. The transportation of oil and gas through pipelines is an essential part of the global energy infrastructure. Pipelines are considered the most efficient way to transport oil and gas resources. These pipelines include crude oil transportation pipelines, natural gas pipelines, petrochemical pipelines, offshore oil and gas pipelines, underground oil and gas pipelines, and so on. It is very important to ensure the high quality, safety and integrity of these pipelines.
The pipe used in the oil pipeline is mainly carbon steel pipe, which can be divided into seamless steel pipe and welded steel pipe according to its manufacturing process. Seamless steel pipe has the characteristics of high strength and many specifications, so it is suitable for the transportation of highly corrosive oil or high temperature conditions. Seamless steel pipes are divided into hot rolled and cold drawn two kinds. Because the cold drawing process will cause the material to harden, it is also necessary to do the corresponding heat treatment according to the specific use of the pipe. Welded steel pipes can be divided into two kinds: seam steel pipes and spiral welded steel pipes.
No matter what kind of steel pipe physical properties testing must be tested in the parameters including hardness testing. The method suitable for field testing is generally to test Brinell hardness and Rockwell hardness. In most cases, portable Brinell hardness tester and portable Rockwell hardness tester are used to facilitate field testing. The portable magnetic hardness tester developed and produced by our company has been widely used in the field testing of the hardness of oil and gas pipelines by domestic and international customers, and has received more and more favorable feedback from customers over the years.
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