How to protect black steel pipe from damages in applications
Tianjin black steel pipe is very popular among people at home and abroad. Black steel pipes are generally non-galvanized steel pipe compared with galvanized one in a mill. However, the black oxide substance has no capacity of anticorrosion and antirust when black steel pipes are used over time. In the recent years, surface finishing is a broad range of industrial processes that alter the surface of a manufactured item to achieve a certain property.
Black steel pipe’s tensile strength makes it a better choice for people to convey water and gas in rural and urban areas. The oil and petroleum industries widely use black steel pipe for convey large quantities of oil through remote areas. Although it doesn’t have a corrosion resistant layer like galvanized steel pipes or other types of welded steel pipes in the market, its high fire resistant performance plays an important role in fire sprinkler system. As for the modern techniques of Tianjin steel pipe, scientific advancement has greatly improved after the butt-weld method invented by Whitehouse. Today, with modern automatic machines, it has become possible for steel pipe manufacturers to produce black steel pipes under the extremely high temperature and pressure. What’s more, it will somewhat facilitate steel pipe suppliers to satisfy different diameter requirements for customers. Meanwhile, with the development of modern manufacturing equipment and inventions in electronics, Tianjin black steel pipe quality can be guaranteed strictly following various manufacturing standards. In the modern times, steel pipe manufacturers will use special X-ray gauges to ensure uniformity in wall thickness of steel pipe in the coming days.
An unfinished surface is often called mill finish. There are numerous types of metal finishing processes that can be used for a variety of purposes. For example, powder coating applies a decorative finish that is similar to paint, but with greater durability. The process involves melting dry plastic powder onto the metal to produce a textured, matte, or glossy coating. A textured powder-coating machine is also highly effective in removing surface defects. In a few cases, some cold rolled steel pipes are manufactured with some types of coatings to restore original dimensions to salvage or repair an item. Furthermore, finishing processes can be employed to black steel pipes: improve appearance, adhesion or wettability, solderability, corrosion resistance, tarnish resistance, chemical resistance, wear resistance, hardness, modify electrical conductivity, remove burrs and other surface flaws, as well as control the surface friction.
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