Industrial casters, the wheels that are utilized for heavy-duty applications in manufacturing settings, are available in a variety of materials, such as cast iron, forged steel, aluminum, and polyurethane. Which material is best suited depends on factors such as weight, temperature, exposure to chemicals and also the type of factory floor and whether or not tracks are being used. For example, steel casters are used when strength and capacity are most important. These wheels can move up to 20,000 pounds and are temperature resistant up to 800 degrees Fahrenheit. The grain structure and the tensile strength of the wheels are enhanced after they have been forged from high carbon steel billets heated to 2,400 degrees and repeatedly hit by high tonnage hammers. Of all the industrial casters, forged steel wheels have the highest load capacity and impact strength, and are perfectly suited for rigorous applications. Many manufacturing processes would not be possible without these wheels.