Grey Iron Castings & Grey Iron Casting Companies
Grey, or gray, iron castings are iron alloyed parts produced in foundries, not to be confused with forges, where they are formed via closed mold operations for applications in a wide variety of industries. Industries that grey iron castings serve include agriculture, architecture, automotive, construction, electronics, irrigation, machinery construction, transportation, and ventilation. Grey iron castings lend durability and strength to any operation for which they are used.
To acquire grey iron, metalworkers must first mine iron ores or iron oxides and then process it in a special type of blast furnace, called an electric induction furnace or a cupola. The generally accepted composition of cast grey iron is 95% iron by weight, plus 1 to 3% silicone and 2.1 to 4% carbon. The high amount of silicone, which produces graphite when heated, is the element responsible for grey iron’s coloring. It manifests itself when fractures form, revealing its graphitic microstructure. The exact appearance of individual grey iron depends on both temperature and timing. Other than appearance, variable properties of castings include thermal conductivity, energy dissipation, resistance to wear and deformation, and melting point. Additional elements that may appear in grey iron castings, whether intentionally, to alter specific properties, or unintentionally, include manganese and sulfur; the latter is often added into molten iron to increase its hardness. When metalworkers have reached the grey iron mixture they want, they proceed to casting.
Some Leading Manufacturers
Lewis Center, OH | 740-201-8112
MES, Inc. is a reliable source for a broad range of cast iron products. We serve customers around the world with high quality iron castings and exceptional manufacturing services. We cast many different types of iron, including standard iron, gray iron, ductile iron, and white iron. We can handle even your most unique requirements! With machining, engineering, painting, anodizing, and assembly services, we can take on your whole project! Contact us today!
Florence, AL | 256-766-8720
Imperial Casting Company has been manufacturing high quality gray iron castings for more than 46 years. We specialize in creating high strength iron castings from customers’ tooling and new tooling from blueprints or samples. We provide sand casting, green sand casting, airset sand casting, no-bake sand casting, and a multitude of secondary operations as well. Contact us to discuss your needs or visit our website to send a request for quote!
Perry, IA | 515-465-5697
As the premier manufacturer of iron castings, U.S. Casting Company is your source for gray iron castings of all kinds. We have been serving industrial companies around the nation for many years, so you can count on us to get the job done right every time. Using our extensive experience, highly skilled staff, and state-of-the-art equipment, we can supply you with engineered castings to your specifications. Connect with us today to find a solution for your casting needs.
Beaver Dam, WI | 920-887-5261
As an ISO 9000 certified company, Willman Industries is your source for reliable, high-quality iron castings. We specialize in casting components for mining, oilfield, heavy-machinery, and transportation industries as well as many others. We manufacture 19 grades of grey iron castings and 20 grades of ductile iron, so we can create a cast iron product to fit your application requirements. Check out our website or call us today for more information!
Decatur, IL | 217-429-5261
As a world-class supplier of all kinds of cast metal parts and products, Decatur Foundry, Inc. is your reliable source for high-quality gray and ductile iron castings. With a state-of-the-art casting facility, we can create practically any cast iron product you could ever need, and we have the equipment to provide additional machining and finishing services to satisfy all of your requirements. And with a focus on customer service, competitive pricing, and on-time delivery, we are the right source for your cast iron product needs!
Imperial Casting Company, Inc.
Grey Iron Castings – Imperial Casting Company, Inc.