Gray Cast Iron is a type of iron alloy that contains a high percentage of carbon, typically between 2.5% and 4%. Its name comes from the gray color of its fracture surface, which is due to the presence of graphite flakes. This material is known for its excellent castability, machinability, and wear resistance, making it a popular choice for various applications, including engine blocks and pipes. One of the key properties of Gray Cast Iron is its ability to absorb vibrations, which makes it ideal for use in machinery and automotive components. Additionally, it has good thermal conductivity, allowing it to dissipate heat effectively. These characteristics contribute to its widespread use in construction, manufacturing, and automotive industries.