The iron casting is a kind of Fe-C alloy that has the carbon content is above 2%.Iron casting for industrial purposes general carbon content from 2.5%~3.5%.
Gray iron casting :carbon content higher(2.7%~4.0%),it has good cushioning affect and abrasive resistance ,be used for producing structural parts, such as machine tool body、cylinder stator and so on.(HT+figure)
White iron casting : the carbon and cilicon content are low, high hardness and high brittleness, usually used for producing the blank of malleable iron casting and wearproof parts.
Malleable iron casting : be used for producing parts that is complex shape and can stand intensive dynamic.
nodular iron casting : be used for producing combustion motor , auto parts , agricultural implements and so on , applied very extensive.（QT+figure）
vermicular graphite iron casting : be used for producing the parts of car.
Ally iron casting : is common iron casting be put in moderate metallic element , thus be provided with homologous heatproof ,wear resistant , corrosion resisting , low temperature resistant , nonmagnetic , etc . Usually be applied to manufacture the parts of mine , chemical machinery , instrument and so on .
iron casting refers to iron carbon alloy casting with carbon content less than 2.11% which is majorly made of foundry iron. Being remelting and casting before it becomes foundry goods. There are various of iron casting in the industrial market: gray cast iron, malleable cast iron, white cast iron, nodular cast iron and the last one vermicular graphite cast iron.
Regarding to the gray cast iron, which usually refers to the iron casting with flake graphite. The fracture is lead. The gray cast iron is widely used which has a high fatigue resistance and good vibration. Will be the best materials in the automobile engine cylinder, wheel gear, flywheel, brake flange as well as large machine bases.
The malleable cast iron is from white iron casting after graphitizing annealing treatment. People used to call this kind of iron casting as malleable cast iron since it has a higher plasticity and toughness compared with gray cast iron, which has been widely used in some important accessories, railways, buildings, electricity, spinning, appliance, national defense, machinery as well as manufacturing and many other areas.
nodular iron casting is made before iron casting and being sphercidized. Most of the carbon will keep exciting in the way of spheroidal graphite. Nodular cast iron is flexible and has a high elasticity which make it become a very good work material.