The strength of steel is proverbial, but that doesn't mean it can't be improved. It's heavy, after all, and there are stronger metals out there. But researchers in South Korea have created an alloy that's as strong as titanium, lighter than ordinary steel, and cheap to boot.
OTHER METALS AND ALLOYS Aluminium has been used as a lightweight alternative to steel throughout the automotive and aerospace industries for many years but is held back by its higher market price. Although aluminium has lower strength than advanced steels, it is a lighter alternative with many improved performance characteristics over the more common metals ...
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Composite materials like Fiber Reinforced Plastics(FRP) and alternative metal alloys are gaining popularity in commercial construction, as well.Composites can be more durable than steel, and repairing damaged composite components is often less costly and requires less heavy machinery
non metal materials