What is gray cast iron?

What is gray cast iron?

Gray cast iron is characterised by its graphitic microstructure, which causes fractures of the material to have a gray appearance. Material properties are intensive properties, that means they are independent of the amount of mass and may vary from place to place within the system at any moment.

What is the thermal conductivity of gray cast iron?

The thermal conductivity of gray cast iron – ASTM A48 is 53 W/ (m.K). The heat transfer characteristics of a solid material are measured by a property called the thermal conductivity, k (or λ), measured in W/m.K.

What is the elastic modulus of grey cast iron?

The elastic modulus of gray cast iron is related to its strength. The higher the grade is, the greater the elastic modulus is. (5) Impact toughness: grey cast iron is a brittle material with low toughness and plasticity. It is not recommended to use grey cast iron as a material bearing impact load.

What are the characteristics of gray iron?

Gray cast iron characterized by flake graphite has certain strength, hardness, modulus of elasticity, shock absorption, wear resistance and thermal conductivity, especially with excellent casting performance, good cutting performance and low casting cost. So far, it is still the most widely used cast iron in the world.