Gray Iron Casting Foundry

in Knoxville, TN

Gray Iron, often known as Cast Iron, derives its name from the gray appearance of its fracture surface. This gray coloration is the result of graphite flakes distributed throughout the iron, which give the material its unique properties. One of the most notable advantages of Gray Iron is its excellent machinability, allowing for easier and more cost-effective manufacturing. It also provides reliable wear resistance, strong vibration absorption, and superior fluidity during the casting process. These qualities make Gray Iron a popular choice for a wide range of engineering and industrial applications. The different grades of Gray Iron are identified by a class number that corresponds to the minimum tensile strength in thousands of pounds per square inch. Lower class numbers improve machinability, while higher class numbers deliver enhanced strength and increased resistance to wear.

Typical Applications

• Machine Frames and Bases
• Spindle Housings
• Bearing Housings
• Pump Housings
• Sprockets

Typical Applications

• Stoker and Fire Box Castings
• Grate Bars
• Ingot Molds
• Glass Molds