Q: Is steel an alloy of iron and other elements? ¶
A: Yes, and primarily carbon.
Q: Is steel one of the most common man-made materials in the world? ¶
A: Yes, and with more than 1.3 billion tons produced annually.
Q: Is steel an iron-carbon alloy that does not undergo eutectic reaction? ¶
Q: Was steel known in antiquity? ¶
A: Yes, and possibly was produced in bloomeries and crucibles.
Q: Are steels made with varying combinations of alloy metals to fulfill many purposes? ¶
Q: Is steel used in a variety of other construction materials? ¶
A: Yes, such as bolts, nails, and screws and other household products and cooking utensils.
Q: Is steel then tempered? ¶
A: Yes, and which is just a specialized type of annealing, to reduce brittleness.
Q: Is steel continuously cast? ¶
A: Yes, while only 4% is produced as ingots.
Q: Was steel expensive and was only used where no cheaper alternative existed? ¶
A: Yes, and particularly for the cutting edge of knives, razors, swords, and other items where a hard, sharp edge was needed.
Q: Is steel alloyed with other elements? ¶
A: Yes, and usually molybdenum, manganese, chromium, or nickel, in amounts of up to 10% by weight to improve the hardenability of thick sections.
Q: Was steel used by the Roman military? ¶
Q: Is steel steel that has been melted in a crucible rather than having been forged? ¶
A: Yes, and with the result that it is more homogeneous.
Q: Are steels magnetic? ¶
A: Yes, while others, such as the austenitic, are nonmagnetic.
Q: Are steels often galvanized? ¶
A: Yes, and through hot-dip or electroplating in zinc for protection against rust.
Q: Is steel generally identified by various grades defined by assorted standards organizations? ¶
Q: Is steel generally used in axes? ¶
A: Yes, and drills, and other devices that need a sharp, long-lasting cutting edge.
Q: Is steel between 0.002% and 2.1% by weight for plain iron–carbon alloys? ¶
Q: Is steel also distinguishable from wrought iron? ¶
A: Yes, and which may contain a small amount of carbon but large amounts of slag.
Q: Is steel alloyed with nickel and other elements, but unlike most steel contains little carbon? ¶
A: Yes, This creates a very strong but still malleable steel.
Q: Are steels abbreviated as CRES? ¶
Q: Is steel steel to which other alloying elements have been intentionally added to modify the characteristics of steel? ¶
Q: Is steel pieces of ironware excavated from an archaeological site in Anatolia and are nearly 4,000 years old? ¶
A: Yes, and dating from 1800 BC.
Q: Is steel used widely in the construction of roads? ¶
A: Yes, and railways, other infrastructure, appliances, and buildings.
Q: Was steel produced in bloomery furnaces for thousands of years? ¶
A: Yes, but its large-scale, industrial use only began after more efficient production methods were devised in the 17th century, with the production of blister steel and then crucible steel.
Q: Is steel water quenched? ¶
A: Yes, although they may not always be visible.