Iron (Fe), lustrous, malleable and ductile chemical element of Group 8 (VIIIB) of periodic table, most used and cheapest metal uses by human civilization Iron atomic mass is 55.845 u. Some iron ore contained vanadium producing so-called Damascene steel, ideal for swords. Iron is a shiny, bright white metal that is soft, malleable, ductile and strong. Iron is represented as Fe and has an atomic number of 26. Other naturally magnetic elements include cobalt and nickel. Characteristics and Properties In its pure form iron is a fairly soft, grayish metal. Iron is the cheapest and most important of all metals - important in the sense that iron is overwhelmingly the most commonly used metal, accounting for 95 percent of worldwide metal production. The thermal conductivity of gray cast iron – ASTM A48 is 53 W/(m.K). … Iron makes up 5% of the Earth's crust and is one of the most abundantly available metals. Grey cast iron is having Self-damping, good anti-friction properties and also having the lowest melting point. Iron is the most naturally magnetic of the elements. It belongs to group 8, periodic number 4 of the periodic table. Iron is used to manufacture steel and other alloys important in construction and manufacturing. Cast iron is an iron alloy containing 2 wt.% – 4 wt.% carbon, 1 wt.% – 3 wt.% silicon and smaller amounts of minor elements [1]. Its surface is usually discolored by corrosion, since it combines readily with the oxygen of the air in the presence of moisture. History and properties of iron. Properties of Cast Iron. The Iron Age had begun. Iron is a chemical element with Fe as its symbol. Iron benefits to the body includes improving cognitive function, treating anemia, supporting the muscle, aiding oxygen circulation, boosting the immune system, treating fatigue, restless leg syndrome that is a result of iron deficiency, act as neurotransmitter and helps reverse insomnia. Melting point is around 1260°C. Its atomic number is 26. It is very reactive and will readily corrode or rust. Know the physical and chemical properties, density, boiling and melting point, along with the uses of Iron … In comparison, steel has a lower carbon content of up to 2 wt.% and a lower silicon content. Read through this ScienceStruck article to know more about the properties of this variety of iron. Differences In Properties – Iron vs Steel Properties of Iron. Cast iron can also be further optimized by alloying with small quantities of manganese, molybdenum, cerium, nickel, copper, vanadium and titanium before being cast. Pig iron can be melted down to form cast iron, which is useful for a number of engineering purposes. Thermal Properties of Gray Cast Iron – ASTM A48 Class 40. It is malleable and a decent conductor of electricity and heat. Chemical Properties Physical Properties Mechanical Properties Thermal Properties Applications. In absolutely dry air, it does not rust. Pig iron then gets processed to reduce the amount of carbon in it, turning it into steel. Introduction. Some kinds of iron were clearly superior to others depending on its carbon content, although this was not appreciated. Melting down iron ore with coke to create pig iron is an easy way of processing it, and is often an intermediate step in the refining process. Archeologists estimate that people have been using iron for more than 5,000 years, according to Jefferson Lab. 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