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Carbon Steel Classification And Application
Carbon steel is a kind of steel with a high carbon content, usually between 0.05% and 2.0%. According to the different chemical composition and physical properties of carbon steel, it can be divided into a variety of types, the classification and application of carbon steel will be introduced below
Low-Carbon Steel
Also known as mild steel, the carbon content is from 0.10% to 0.30%. Low carbon steel is easy to accept various processing such as forging, welding and cutting, and is often used to manufacture chains, rivets, bolts, shafts, etc. Low-carbon steel is generally rolled into angle steel, channel steel, I-beam, steel pipe, steel strip, and steel plate, and is used to make various building components, containers, boxes, furnaces, and agricultural machinery. High-quality low-carbon steel is rolled into thin plates to make deep-drawn products such as automobile cabs and engine covers; it is also rolled into bars to make mechanical parts that do not require high strength
Medium Carbon Steel
Carbon content (C: 0.25%< C 0.6%) In addition to carbon, it can also contain a small amount (0.70% ~ 1.20%). Its thermal processing and cutting performance are good, but its welding performance is poor. The strength and hardness are higher than low carbon steel, but the plasticity and toughness are lower than low carbon steel. Therefore, in various uses of medium strength level, medium carbon steel is the most widely used. In addition to being used as building materials, it is also widely used in the manufacture of various mechanical parts. Medium carbon steel is mainly used to manufacture high-strength moving parts, such as air compressors, pistons of pumps, impellers of steam turbines, shafts, worms, gears of heavy machinery, etc., parts with wear-resistant surfaces, crankshafts, machine tools Spindle, rollers, fitter tools, etc.
High-Carbon Steel
Carbon content (C: 0.6%~1.3%) Commonly known as tool steel, the carbon content is from more than 0.60% to 1.70%, which can be hardened and tempered. Hammers, crowbars, etc. are made of steel with a carbon content of 0.75%; cutting tools such as drills, taps, and knives are made of steel with a carbon content of 0.90% to 1.00%. The higher the carbon content, the greater the hardness and strength, but the lower the plasticity.
