(ten times stronger than mild steel, at 2.7 GPa tensile yield.) Nobody is deciding between mild steel and graphene. Comparing to PAN carbon fiber (which can ach

(ten times stronger than mild steel, at 2.7 GPa tensile yield.) Nobody is deciding between mild steel and graphene. Comparing to PAN carbon fiber (which can achieve 7.0 GPa yield with careful manufacture) would be more useful.