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If a low-carbon steel is only stressed to some point between the upper and lower yield point then the surface develops Lüder bands. [7] Low-carbon steels contain less carbon than other steels and are easier to cold-form, making them easier to handle. [3] Typical applications of low carbon steel are car parts, pipes, construction, and food cans ...
4340 steel is an ultra-high strength steel classified a medium-carbon, low-alloy steel. 4340 steel has high strength, ductility, ...
The simplest steels are iron (Fe) alloyed with (0.1% to 1%) carbon (C) and nothing else (excepting slight impurities); these are called carbon steels. However, alloy steel encompasses steels with additional (metal) alloying elements.
The carbon content of steel is between 0.02% and 2.14% by weight for plain carbon steel (iron-carbon alloys). Too little carbon content leaves (pure) iron quite soft, ductile, and weak. Carbon contents higher than those of steel make a brittle alloy commonly called pig iron.
The term hardened steel is often used for a medium or high carbon steel that has been given heat treatment and then quenching followed by tempering. The quenching results in the formation of metastable martensite, the fraction of which is reduced to the desired amount during tempering. This is the most common state for finished articles such as ...
Type 1: Medium carbon steel, boron steel, or medium carbon alloy steel; Type 2: Low carbon martensitic steel [7] (withdrawn from the standard in 1991) Type 3: Weathering steel; There is also a T version, which is used to refer to fully threaded bolts. [6] Note that independent of the material the bolt is quenched and tempered. [7]
In addition to the descriptive steel grade naming system indicated above, within EN 10027-2 is defined a system for creating unique steel grade numbers. While less descriptive and intuitive than the grand names they are easier to tabulate and use in data processing applications.
Spring steel is a name given to a wide range of steels [1] used in the manufacture of different products, including swords, saw blades, springs and many more. These steels are generally low-alloy manganese , medium-carbon steel or high-carbon steel with a very high yield strength .