A simple AISI 4-digit numbering system designates plain carbon steel as 10xx, with the last digits approximating the percentage of carbon in the metal. Total Materia A list of materials will then be generated for you to choose from. Other critical property data for structural steels can also be viewed including mechanical property data covering yield stress, tensile stress, elongation and impact data. It is used in cutting tools, because of its ability to keep a very sharp edge under duress; it is also used for masonry nails, which can be pounded readily into rock (albeit not with your hands). The limiting factor to carbon additions will vary depending on the type of applications. Carbon steel is the almost exclusive choice of pipeline designers. A world with no steel structures in it would be unrecognizable as modern in any meaningful way. High carbon steel is used for applications in which high strength, hardness and wear resistance are necessary, such as wear parts, knives, saw blades, springs, gear wheels, chains, brackets etc. There are two types of steel alloy that are typically familiar to the average person: carbon steel and stainless steel. Country/Standard. Using the Advanced Search page, it is possible to search for materials by general application by using the Full Text Search function of Advanced Search. The pearlite has a very fine structure, which makes the steel very hard. Ultrahigh-Carbon Steels. However, some of the effects of elevated carbon levels include reduced weldability, ductility and impact toughness. Although it is probably hard for you to think of any kind of steel as "soft," you can probably think of differences in how different steel objects feel even as you read this, without ever having known that this was likely because of their different carbon content. Abstracts. Steel is not a metal but an alloy or a mixture of metals. The pearlite has a very fine structure, which makes the steel very hard. Formerly with ScienceBlogs.com and the editor of "Run Strong," he has written for Runner's World, Men's Fitness, Competitor, and a variety of other publications. Carbon steel has also been used as the skin of some high-speed airplanes. High carbon steel properties include a very high strength, extreme hardness and resistance to wear, and moderate ductility, a measure of a material's ability to tolerate being deformed without actually breaking. All Rights Reserved. It consists overwhelmingly of the metallic element iron (Fe), which is not only essential for construction but is required for the formation of the oxygen-carrying red blood cells in your body. It is made up from a fine mixture of ferrite and iron carbide, which can be seen as a "wormy" texture. Click here to see more. The name is meant as something of a clue; because of their extreme hardness, these steels are used in punch awls, shearing blades, various kinds of springs and all manner of cutting implements, knives and razors. High-carbon steels are most commonly used for: Knives; Spring material; Bayonets; Sturdy wires; This malleable and ductile alloy is cheap and can be easily formed, which makes up for its brittle nature. This is true for pipeline systems that are used to gather or collect the natural gas, crude oil, or water; it is also true for those pipelines used to transport substances over distances from hundreds of feet to hundreds of miles. Figure 2 shows the microstructure of high carbon steel with about 0.8% C by weight, alloyed with iron. Low-carbon steel is not as hard as higher-carbon varieties, but is also less brittle. High-carbon steel has approximately 0.60 to 1.00% carbon content.Hardness is higher than the other grades but ductility decreases. Apr-2012, Full text While it is the carbon content of steel that determines the degree to which it can be … They are almost always used in a hardened and tempered condition and, as such, are especially wear resistant and capable of holding a sharp cutting edge. ASTM A-228 Music Wire, High carbon steel is used for applications in which high strength, hardness and wear resistance are necessary, such as wear parts, knives, saw blades, springs, gear wheels, chains, brackets etc. High carbon steel is mainly used in the manufacture of springs, wear parts and high hardness tools. Their carbon content, microstructure and properties compare as follows: