Cast Iron handwheels are a good choice for functions requiring high strength and durability. They are resistant to deformation and are available in chrome and other finishes, but are heavy if weight is a factor.
Aluminum handwheels are lighter than their cast-iron counterparts and more resistant to oxidation (rust). Should electrical or thermal conductivity be needed, aluminum can be a good option.
Plastic handwheels are durable and can resist solvents, oils, grease, and other chemicals. Molding options can include grips and ridges that improve operator leverage and efficiency even when wearing gloves. Plastics generally have more color and texture choices compared to metals.
Duroplastic handwheels include glass- or nylon-fiber reinforcement to improve strength and durability.
Stainless Steel handwheels can be effective for applications requiring alkali and other chemical resistance. Casting modifications can include revolving handles, grips, and other design options.
Steel handwheels, while less corrosion-resistant than stainless steels, can be good high-strength and high-pressure choices.