저합금탄소 경화능 + ++ +++ 인장가능 - 연산율 -- 저탄소 <0.25wt%c 일반 고강도저 합금 중탄소 0.25-0.6wt%c 열처리 가능 고탄소 0.6-1.4wt%c 공구강 경화능 + ++ +++ 인장가능 - 연산율 -- Hello, Our team will introduce about cast iron. Firtst, Iron is a chemical element with symbol fe and atomic number26 . Carbon steel may be classified into low-carbon steel , medium carbon steel , high carbon steel low carbon steel is carbon steel is 0.25wt % ~ 0.6wt % of the carbon content of less than 0.25wt % , and high carbon steel containing 0.6wt % ~ 1.4wt % carbon The . The strength of the carbon content is much higher quality , but price is expensive and poor ductility. Low-carbon steel is used for automobile body or sheets. medium carbon steel is used in the hammer, bolt, crank shaft. High carbon steel is used for strong strength materials such as cables.

Cast iron has a carbon containing 3wt%~4 Cast iron has a carbon containing 3wt%~4.5wt% and the low melting point is suitable for the casting process. If cast iron is cooled rapidly , cast iron is white iron in the form of cementite. It is strong enough to not be machined. By reducing the cooling rate, cast iron is a gray iron. It is an excellent vibration damping capacity and wear fluffy. Cast iron White cast iron

when mixed magnesium and cesium, that is Globular cast iron when mixed magnesium and cesium, that is Globular cast iron. If the heat treatment of the white iron is malleable cast iron. Globular cast iron and malleable cast iron has a very good ductility properties. Ductile cast iron Malleable cast iron