A carbon steel plate has usually been considered as the steel that does not contain much alloy steel elements, also named as mild steel. Generally, elements are C, Mn, P, S, Si, besides these, there are no minimum limits for elements of Al, Cr, Ni, Mo, V, etc.
Carbon steel plates are available in different grades depending on the carbon content and strength.
As the content of Carbon increase, the steel plate hardness increases.
Low carbon steel plate: For carbon content 0.06% to 0.25%, also we call it mild steel plate.
Medium carbon steel plate: C content from 0.25% to 0.55%.
High carbon steel plate: 0.55% to 1.0%, also called hard steel plate.
Low carbon steel is the most common form, and it's very malleable and ductile. Medium carbon steel balances ductility as well as strength for excellent wear resistance. High carbon steel is exceptionally strong, while ultra-high carbon steel can be tempered to even greater hardness but no malleability.
As the percentage of carbon gets larger, steel can become harder and stronger through heat-treating. Carbon steel is usually heated to change the mechanical properties of steel, usually ductility, hardness, strength, and resistance of impact. Increasing the carbon content of carbon steel makes it harder and stronger, but reduces the steel`s ability to be welded, making it more brittle.
Carbon steel plate is most often used for structural purposes such as buildings, yet it has the flexibility to be worked into ornate designs. Low carbon steel sheet (wrought iron) is typically used for fences, chain links, gates, and railings. Structural steel (medium carbon steel) is used in cars, refrigerators, washing machines, buildings, and bridges. The steel sheets are normally made up of medium carbon steel.
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It is reported that Sasol has signed a contract for manufacturing reactors with Hitachi Shipbuilding Machinery Co., Ltd., a subsidiary of Hitachi Shipbuilding Corporation of Japan. The reactor adopts Sasol's advanced SAS reactor technology. It will use coal and natural gas as raw materials to firstly produce syngas, and then convert syngas into liquid fuel and chemical products. The SAS reactor weighs approximately 867 tons, has a diameter of 8 meters and is about 38 meters high. Sasol currently has nine SAS reactors in production in Sekuda. It is understood that Sasol's current production of synthetic fuels accounts for about 35% of South Africa's demand for liquid fuels. The Sekouda expansion project will help the company better meet the needs of domestic and international markets.
South African Sasol Company announced in mid-October that it will add reactors to increase synthetic fuel production by 20% in 2015 to 180,000 bbl/d. Sasol currently produces 150,000 barrels per day of synthetic fuel at a coal-to-oil refinery in Sekouda, South Africa.