Black steel pipes are made from steel that hasn’t been coated with a substrate like zinc or paint. It is called black steel pipe because it has a dark colour surface caused by iron oxide during the manufacturing process. You can find more about black pipes malaysia here.
Because of their strength and low maintenance requirements, black steel pipes have a wide range of applications. They are commonly used to transport gas and water to rural and urban areas, as well as to protect electrical wiring and deliver high-pressure steam and air. Furthermore, black steel pipes are used in the oil and petroleum industries to transport large amounts of oil through remote areas.
Black steel pipes are also used for gas distribution inside and outside homes, water wells, and sewage systems. However, black steel pipes are never used to transport potable water because they corrode in water and the minerals in the pipe dissolve into the water and clog the line.
Steel pipes are made in two ways: welded and seamless. Raw steel is first cast into a more workable starting form in both methods. The steel is then stretched out into a seamless tube or forced together and sealed with a weld to form a pipe. The first methods for manufacturing steel pipes were developed in the early 1800s, and they have steadily evolved into the modern processes used today.
Steel pipes are manufactured using two distinct methods that result in either welded or seamless pipes. Raw steel is first cast into a more workable starting form in both methods. The steel is then stretched out into a seamless tube or forced together and sealed with a weld to form a pipe. The first methods for manufacturing steel pipes were developed in the early 1800s, and they have steadily evolved into the modern processes used today.
Carbon steel pipe was the first to use the most basic material in modern industry. The world’s industrial countries are attempting to increase high strength low alloy steel and alloy steel production while also paying close attention to improving carbon steel pipe quality and expanding the range of varieties and applications. The proportion of carbon steel pipe production in the country’s total steel output is roughly maintained at around 80%, and it is not only widely used in buildings, bridges, railways, vehicles, ships, and all types of machinery manufacturing industry, but also in the modern petrochemical industry, marine development, has been heavily used.
Carbon steel pipes are typically welded or seamless, whereas black steel pipes are cast from various grades of ductile or malleable iron. Black steel pipes are used for underground or submerged applications, as well as mainline and branch pipes that are subjected to acids. Cast iron pipes and fittings are also commonly used for municipal cold-water lines 4′′ and larger in diameter. Unless the pipe is very heavy, commercial die casting is unsuitable for lines subjected to expansion strains, contractions, and vibration. It is not suitable for superheated steam or temperatures exceeding 575 degrees Fahrenheit. Underground cast iron pipes, such as sewer lines typically have bell and spigot ends, whereas exposed pipes typically have flanged ends.