In 1911, the black steel pipe was developed by John Moon. He invented a machine which was adopted by most manufacturers and the machine improve the production process of black steel pipes. You are advised to choose the API steel pipe from a reliable supplier. Initially, the seamless pipes are made by drilling holes through the cylinders. But, the precision of the thickness is hard to control until a new method came out in 1888. The melted steel was covered around the brick and while removing the brick, the hollow pipes would be created.

The black steel pipes are popular for its easy maintenance. They could be used to transfer the gas and water, and they could be used to form the drain system, but the portable water should not be transferred by them. You are advised to choose the black steel pipe from a reliable supplier. Besides, the steel pipes could be used to protect the electrical wires. Further more, thanks to the stability, the steel pipes could be used to transfer high pressure gas or water.

Nowadays, the steel pipes are allowed for higher quality to apply to more applications. Generally, the thicker the pipe wall is, the more pressure it could holds. You are advised to choose the welded steel pipe from a reliable supplier. Before selling the black steel pipes in the market, the manufacturers have tested the quality of the pipes through a specific machine. It fills the pipes with water and continue to heighten the pressure to determine the pressure the pipes could hold. The unqualified pipes would be scrapped.
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