Stainless steel bar stock is a standard type of steel material that is manufactured from stainless steel raw materials. It is regularly used to produce a wide variety of metal parts, products and components. Stainless steel bar products are available in numerous sizes and shapes to fulfill a wide range of application needs. Some of the more common shapes that are used include: stainless steel flat bar stock, steel square and rods, stainless steel round bar stock and hex bar styles.