How does the strength of Stephanie Kwolek's invention, Kevlar, compare to steel by weight?

Answer

It is five times stronger than steel by weight.

Stephanie Kwolek, a chemist at DuPont, invented Kevlar, an aramid fiber noted for being five times stronger than steel when comparing equal weights.

How does the strength of Stephanie Kwolek's invention, Kevlar, compare to steel by weight?
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