Latrobe Specialty Steel to produce new QuesTek UHSS alloy

  • 07-Apr-2010 03:41 EDT

QuesTek Innovations LLC has awarded the first license to Latrobe Specialty Steel Co. to produce and sell Ferrium M54, a premium-quality, ultrahigh-strength steel (UHSS) that has an ultimate tensile strength of 294 ksi, yield strength of 250 ksi, and fracture toughness of 110 ksi square root inch. Terms of the multiyear agreement were not disclosed. QuesTek computationally designed and developed M54 to be a cost-effective alternative to alloys such as AerMet 100—in part by limiting high-cost alloying elements such as cobalt—while meeting or exceeding key properties. Applications for this class of alloys can include aircraft landing gear and arresting tailhooks, shock struts, tow bars, drive shafts, actuators, blast containment devices, and fasteners. QuesTek received funding and direction from the U.S. Navy Naval Air Systems Command (NAVAIR) to develop M54, under an earlier Phase I and a current Phase II Small Business Innovation Research project. Latrobe Specialty Steel produces this alloy and others in its vacuum melting and vacuum remelting facilities, including those at its recently expanded Latrobe, PA, facility.

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