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  • The Daily Maintenance of the Seamless Welded Steel Pipe

    The Daily Maintenance of the Seamless Welded Steel Pipe

    The black steel pipe is an important steel pipe that is used in oil and petroleum industries. Although the black steel pipe is a kind of seamless welded steel pipe, we know not much about the seamless steel pipe, its function, manufact...

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  • What Is the Black Steel Pipe?

    What Is the Black Steel Pipe?

    The black steel pipe is the refined seamless welded steel pipe. During the production of the black steel pipe, there is a black oxide material forming on is surface, which is the name resource of black steel pipe. However, this black o...

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  • How to Tell the Galvanized Steel Pipe from the Black Steel Pipe

    How to Tell the Galvanized Steel Pipe from the Black Steel Pipe

    Black steel pipes and galvanized steel pipes are all widely used welded steel pipe. In modern society, the pipes have an important function and are utilized in delivering gas and water, so they are used in industries as well as househ...

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  • The Manufacture Technique of the API Steel Pipe

    The Manufacture Technique of the API Steel Pipe

    This new manufacture technique of a kind of API steel pipe which belongs to straight seam welded steel pipe is being widely accepted around the world. As a matter of fact, the API steel pipe is a kind of welded steel pipe that has no ...

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  • The Surface Treatment of the Steel Pipe

    The Surface Treatment of the Steel Pipe

    With the sustainable development of the economy, the country strives to develop the energy industry. And the oil and gas pipeline of long distance is an important way to ensure the3 energy. During the corrosion prevention of the oil a...

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  • The Heat Treatment of the API Steel Pipe

    The Heat Treatment of the API Steel Pipe

    During the production of the API steel pipe, a main kind of the welded steel pipes, it has obvious brittleness of high temperature tempering, causing lower and unstable impact strength. There are two methods to address this problem. One...

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