Some data: The yield strength of that new material is from about 1 GPa to 1.4 GPa, vs. 830 MPa for Ti6Al4V (Steel and Aluminium vary, depending on the alloy).

Some data: The yield strength of that new material is from about 1 GPa to 1.4 GPa, vs. 830 MPa for Ti6Al4V (Steel and Aluminium vary, depending on the alloy). It has a density of 6.82 g/cm3, vs 4.43 for the titanium alloy, 7.85 for ordinary steel or 2.70 for 6061 Aluminium. Apparently Ti6Al4V costs around $20/kg, so the new alloy would cost around $2/kg, vs. around $2.70/kg for 6061 Aluminium or $0.85/kg for cold-rolled steel. Prices: http://www.metalprices.com/metal/steel/steelbenchmarker-cold-rolled-coil-usa http://www.metalprices.com/metal/steel/steelbenchmarker-cold... http://www.metalprices.com/metal/aluminum/aluminum-6061-extrusion-billet-price http://www.metalprices.com/metal/aluminum/aluminum-6061-extr... http://www.metalprices.com/metal/titanium/titanium-ingot-6al-4v-usa http://www.metalprices.com/metal/titanium/titanium-ingot-6al... As for the modulus of elasticity, it isn't mentioned in the article. The usual figure for steel is 210 GPa. The titanium alloy is around 114 GPa, and 6061 Aluminium is 69 GPa. The low density is fairly big new. Compared to mild steel, you can have a 15% larger volume for the same weight, so you might be ahead on stiffness even if the MoE is smaller.