Iron castings are divided into gray iron castings and heat-resistant castings. As high-quality products in the casting process, these two products have been widely used in casting and related industries. 

Gray iron castings / heat-resistant castings as one of the main products of river casting heavy industry, there are many advantages that do not have in the same industry, if you need such products, please contact us, Kunfeng heavy industry is a manufacturer of gray iron castings, we solemnly promise to you, if you buy our products, I will try my best to do a good job of after-sales service to ensure that you do not have to worry. 

The characteristics of gray iron castings / heat resistant castings produced by our company are as follows: 

Gray iron castings / heat-resistant castings have excellent castability and can be made into complex parts, and generally have good machinability. 

In addition, it has the characteristics of good wear resistance and shock absorption, low price and so on. 

Industrial cast iron generally contains 2% to 4% carbon. 

Carbon exists mostly in the form of graphite and sometimes in the form of cementite in cast iron. 

In addition to carbon, cast iron also contains 1% to 3% silicon, as well as manganese, phosphorus, sulfur and other elements. 

Alloy cast iron also contains nickel, chromium, molybdenum, aluminum, copper, boron, vanadium and other elements. 

Due to the high carbon content of gray iron castings / heat-resistant castings, which is close to eutectic, it has low melting point, good fluidity and low shrinkage, so it is suitable for complex or thin-walled castings. 

In addition, because graphite makes it easy to form broken chips during cutting, the machinability of gray cast iron is better than that of steel.