... hardness, and toughness. 1.Safety 2.Tough 3.Light Alloy steel material introductionAlloy steel is high polymer material that be ... Less 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, ...