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What Is the Black Steel Pipe?

The time of issue:2014-1-8 8:57:49       Author:

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 oxide has not the function of anticorrosion and antirust, so it is necessary to take anticorrosion measures to protect the black steel pipe from rusting.

The black steel pipes are the raw materials to produce all kinds of steel pipes. And different production methods and threads make the black steel pipes possible to be suitable for different working requirements. The fittings of the black steel pipe use black raw steel that can be forged and are fixed on the black steel pipes through fastened threads. However, as for the black steel pipe with large diameter, use welded method to replace the threaded method. Most of the black steel pipes are iron pipes.

The feature of a kind of seamless welded steel pipe makes the black steel pipe an ideal choice to deliver gas and water.  Although it is has not a corrosion resistant layer like the galvanized steel pipes or other welded steel pipes, its high fire resistant ability makes it play an important role in fire sprinkler systems. In addition, its high heat resistant feature makes delivering hot water except for drinking water become possible. And because of lacking of zinc layer that covered on the galvanized steel pipe, it is possible to attach couplers easily to the black steel pipes to fit for different working requirements. What's more, the black steel pipes are commonly seen in the water supply systems around every household. And the black steel pipes are also good for delivering gas because of their seamless advantage. Thus, the black steel pipe is a popular welded steel pipe in oil and petroleum industry. And the sewage is also made of the black steel pipe. However, keep in mind that the black steel pipe cannot be used to deliver drinking water.

In addition, the black steel pipe is also called the welded steel pipe used for fluid transfer in low pressure. It is a kind of welded steel pipe that is used for transporting water, coal gas, air, oil as well as the heating steam and other fluid with low pressure. The welded steel pipe used for fluid transfer in low pressure can be divided into common steel pipe and thicken steel pipe according to it wall thickness. And steel pipes have threads or not according to pipe end form. The welded steel pipe used for fluid transfer in low pressure can be used for transferring the fluid directly and also can be used to be the original pipe of the galvanized steel pipe used for delivering fluid in low pressure.

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