Page 65 - The Periodic Table Book
P. 65

Steel is an alloy of iron that contains about two per cent   such as nitrogen, sulfur, or phosphorus. Other elements can
           carbon and some other elements. The carbon locks all    be added to create different varieties of  steel. For example,
           the atoms together and prevents the metal from cracking.   chromium in steel stops it from rusting, while manganese
           This makes steel harder than iron: it bends before it    makes it harder. Adding silicon to steel can make the alloy
           breaks and doesn’t shatter easily. To make steel, iron    more magnetic, while nickel makes it less brittle at extremely
           ore is smelted in a blast furnace to remove its impurities,   low temperatures.





   062-063-Iron_DPS.indd   63                                                                                    02/12/16   6:52 pm
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