QuesTek Innovations says its ultra high-strength, high-toughness FerriumM54 steel has been approved for inclusion in the aerospace industry’s Metallic Materials Properties Development & Standardization (MMPDS) Handbook. This marks QuesTek’s second fully-qualified alloy, following the 2008 MMPDS approval of its ultra high strength, high toughness, corrosion resistant Ferrium S53 alloy, which is being used without toxic…