it is the most used construction material,there are other materials….but none have such balanced properties as steel-toughness, strength, elasticity, durability, also is a recyclable material. No other material (under given mechanical-strength properties) is not so machinableand moldable.
2/3 of steeliscurrentlymadefromrecycledsteel, a largenumber of productsalreadyproduced are returned to thesteelworks as a valuablesecondaryrawmaterial,
Eachrecycled ton of steelwillsave 1300 kg of ironore and 635 kg of coal
Fortheproduction of recyclablesteel, only 1/3 of energyisconsumed, compared to theproduction of new steelfromore.
itis a naturalmaterial , from a chemical point of view, itsbasic element isironwhichisone of the most widespreadelements of theEarth’scrust, thereforedoesnotcauses environmental burdenwithharmfulinfluences.
Steel has beencalled “enviro-metal” – itistheworld’s most recyclablematerial.