... hardness, and toughness. 1.Safety 2.Tough 3.Light Alloy steel material introductionAlloy steel is high polymer material that be ... common alloyants include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, and zirconium.The following is a range ... of improved properties in alloy steels (as compared to carbon steels): strength, hardness, ...