Screw Materials
There are many options and factors to consider when selecting the proper material to manufacture your new injection molding screw, extrusion or blow-molding screw. An understanding of the most common types of materials is helpful in making this decision. There are several options available, at various levels of cost and considerable difference in wear characteristics. The Screw Material Guidelines Table summarizes the materials, treatments, and flight hard surfacing options which are best suited for your application.