Fatigue behaviour of sintered steel (HAP 10) under different tempering temperatures / Habiborlah Sheikh Salimullah and Awang Faizol Awang Sallam

Steel is a material composed primarily of iron. Many steels contain more than 90% iron. Most carbon steels contain more than 99% iron. All steel contains a second element, which is carbon. Many other elements, or alloy, are contained in most steels, but iron and carbon are the only elements that are in all steel. The percentage carbon in steel ranges from just above 0% to approximately 2.0%. Most steels have between 0.15% and 1.0% carbon. Steels with least carbon are more flexible and ductile, but they are not as strong. However, as the carbon content increases, so do strength, and briltleness.