| Steel compositions vary widely. Steels in general have a lower carbon content than cast irons, and lower amounts of impurities like phosphorus and sulfur. The composition chart above represents typical ranges for basic steel constituents. Other alloying elements such as Boron, Chromium, Cobalt, Columbium (Niobium), Copper, Molybdenum, Nickel, Nitrogen, Selenium, Tantalum, Titanium, Tungsten, and Vanadium are added to improve corrosion, high temperature, and mechanical properties of steel. The properties listed below reflect typical properties for Steels. In general, properties such as density, thermal conductivity, and electrical resistivity do not vary greatly with composition or heat treatment, whereas properties such as tensile strength, elongation, and hardness are highly dependent on composition and heat treatment. |
| carbon steels, alloy steels |
