Your email address will not be published. Pipes are needed in every home and commercial building because of need of water and gas. The galvanization process that binds the zinc to the steel is quick and inexpensive, especially when compared to other steel-treatment options like painting. Used as cooking utensils, tools and railway tracks, stainless steel has many applicable uses. There are plenty of reasons to choose any type of steel, including: Galvanized steel, or steel covered in zinc, was designed specifically to resist rust and corrosion. Steel and galvanized steel strength comes from the thickness or gauge of the steel and the amount of carbon added, not the galvanization process which is simply a coating to prevent rust. A Mined Metal -- Iron. The construction and automotive industries use galvanized steel for machine parts and tools. Comment document.getElementById("comment").setAttribute( "id", "a10d42dc3885d6dc0ffe7f26235b14b5" );document.getElementById("af7b16bde4").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. Different grades of steel exist, each with varying amounts of carbon in them. Content, including images, displayed on this website is protected by copyright laws. Stainless steel has a wide variety of grades, each with varying amounts of alloys. Like galvanized steel, stainless steel has an anti-corrosive element added to it, typically 10 percent chromium. Depending on the amount of carbon present, steel can be of different grades serving a variety of purposes. Instead, it becomes covered in iron oxide (rust) during the manufacturing process. A higher level of carbon in steel makes it harder, but also more brittle. His work includes media relations and copywriting technical manuals for Johnson & Johnson, HSBC, FOX and Phillip Morris. Additionally, galvanized steel pipes can't be welded to other types of metal, especially copper, or to other types of steel pipes, including black steel. Black iron pipe is course and grainy and will feel the same at room temperature. Manufactures create galvanized steel by immersing the metal in a tank of molten zinc called “hot dip galvanizing” at temperatures of 820 to 860 degrees Fahrenheit. Hopefully, now that you've read this blog, you have a better idea of what type of steel pipe to choose for your next project, but if you still have questions, don't hesitate to ask for professional help. It won't scratch as easily as black iron pipe, but that doesn't meant it can't be damaged by a wrench or hammer while working around it. Along with its noncorrosive benefits, galvanized steel has a few distinct advantages over other types of steel. Included were steels to Australian Standard 1511 grade A specification, and British Standard 4360 series steels. The two most common types of pipes used to carry water and gas are black steel pipe and galvanized steel pipe. Carbon Content: Has carbon content up to 2.1% by weight. When the galvanizing finishes, the steel will be protected by a topmost layer of pure zinc, followed by an additional three layers of zinc mixed with iron molecules, with each layer in decreasing amounts of zinc. Black steel pipe is different from galvanized pipe because it is uncoated. Carbon added to iron during the smelting process makes iron stronger. These two are basic necessities for everyone and as such every building requires pipes to … Galvanized fittings also cost more than the fittings used on black steel. Serving Houston and Surrounding Areas Since 1981. A form of coal called coke powers the furnace as its fuel source. Steel and galvanized steel strength comes from the thickness or gauge of the steel and the amount of carbon added, not the galvanization process which is simply a coating to prevent rust. The flaking can cause the pipe to burst. Galvanized pipe is covered with a zinc material to make the steel pipe more resistant to corrosion. We've already talked about the many benefits of PVC pipe, and we've also briefly overviewed industrial pipe options like concrete. Difference between black steel pipe and galvanized steel pipe. Gas supplies power to stoves, water heaters and other devices, while water is essential for other human needs. Galvanized steel pipe costs more than black steel pipe because of the zinc coating and manufacturing process involved in producing galvanized pipe. Carbon Steel vs Black Steel: Carbon steel is a form of steel containing carbon as a major constituent. Black steel pipe is different from galvanized pipe because it is uncoated. The dark color comes from the iron-oxide formed on its surface during manufacturing. Galvanized pipe is commonly used as scaffolding frames because of its resistance to corrosion. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. By adding less carbon, it allows the steel to be softer, but more malleable. The chromium alloy reacts with oxygen in air to form a protective layer of chromium oxide on the steel’s surface. Downloading, republication, retransmission or reproduction of content on this website is strictly prohibited. These different grades of steel balance malleability with hardness and anti-corrosive properties. Steel pipe will have a very fine feel to it and almost be cool to the touch. Galvanized and stainless steel both prevent oxidation. U.S. steel production grows by 8.6 percent, General info on Hot Dipped Galvanized Steel, General info on Hot and Cold Rolled Steel. As a result, black steel pipes are more commonly used to transport substances like oil and gas rather than water. Water and gas require the use of pipes to carry them into residential homes and commercial buildings. Black steel is even less expensive than galvanized steel because it isn't coated or alloyed. To make galvanized steel, manufacturers add a layer of zinc and other minerals to the surface of the steel to protect it against corrosion or oxidation. Hardness: The hardness of carbon steel depends on the carbon content. Black Pipe vs Galvanized Pipe . Because the zinc coating takes on damage rather than the steel itself, galvanized steel doesn't need to be checked for repairs or maintenance as often as other types of steel. Black iron pipe is course and grainy and will feel the same at room temperature. As a mined metal, iron occurs as a naturally occurring oxide in rock. Using galvanized pipes to ferry drinking water is problematic at best. Steel pipe will have a very fine feel to it and almost be cool to the touch. Galvanized steel pipe must never be joined with black steel pipe during the construction of a residential home or commercial building. Started in 1977, MST Steel Corp. has built an excellent reputation as a Tier 1/Tier 2 supplier to automotive stamping companies. Black and galvanized pipes are commonly used steel pipes. After crushing the ore and smelting it in a furnace, the iron melts and separates from the rock. The primary purpose of black steel pipe is to carry propane or natural gas into residential homes and commercial buildings. Mitchell Brock has been writing since 1980. The strength of steel or galvanized steel depends on what is added during the manufacturing process. Black steel pipe is the uncoated steel and is also called as black steel. Black steel is non-galvanized and has dark-coloured iron oxide coating on the surface. Brock graduated from the University of Southern California in 1980, earning a Bachelor of Arts in English. During the smelting process, which involves controlled heating and cooling of the molten iron, smelters add the carbon or coke. The black steel pipe is also used for fire sprinkler systems because it is more fire-resistant than galvanized pipe. Required fields are marked *. By the end of this blog, you should have a much clearer understanding of whether or not steel pipes are the right choice for you and, if so, which type. Carbon added to iron during the smelting process makes iron stronger. When steel pipe is forged, a black oxide scale forms on its surface to give it the finish which is seen on this type of pipe. The main difference between the two is that galvanized steel has a protective coating that keeps steel from rusting. During the smelting, iron absorbs the carbon from the coke into itself, strengthening the iron. Contains no carbon. The black steel pipe is also used for fire sprinkler systems because it is more fire-resistant than galvanized pipe. In this blog, though, we'll specifically overview types of steel used in industrial applications. Galvanizing steel is a cheaper process than making stainless steel. Black iron pipe will also flake if it is handled a lot. After adding other minerals such as limestone, silicone and other impurities create a layer of “slag” on the surface of the molten iron, which allows for its removal. The welding temperature heats the zinc and produces dangerous chemical reactions as it melds to the other type of metal. The mechanical properties of 19 structural steels from major industrial areas of the world were investigated before and after galvanizing in a major 4-year research project by the BNF Technology Centre, UK, under the sponsorship of International Lead Zinc Research Organization. Unlike galvanized steel, stainless steel is an alloy with a non-oxidizing element added during the smelting process. Zinc reacts with the iron molecules in the steel to form surface layers which have both elements. However, bear in mind that the zinc on galvanized steel tends to flake off over time. The dark color comes from the iron-oxide formed on its surface during manufacturing. Black steel pipe, on the other hand, corrodes more easily than galvanized pipe and allows minerals from water to build up inside it.

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