Material Properties of Precipitation Hardening Stainless Steel “Ferrium® PH48S™”

Integrated Computational Materials Engineering (ICME) technologies and the Materials by Design methodology, which implements a systems engineering design framework that considers the various interactions between chemistry, processing, microstructure, are being widely applied for alloy development. This method provides the properties to achieve the desired material performance with lower development costs and a quicker transition to industry. Ferrium® PH48S™ is one of the computationally designed precipitation hardening stainless steels developed by QuesTek Innovations LLC, which has high strength, high toughness and good corrosion resistance. Under collaboration with QuesTek, Daido Steel Co., Ltd. has revealed that Ferrium® PH48S™, which was manufactured at mass production scale and heat treated without the need for cryogenic treatment, has higher strength and toughness than conventional precipitation hardening stainless steels, combined with good corrosion resistance. It is expected that Ferrium® PH48S™ contributes to weight reduction and miniaturization due to good balance of strength and toughness, and elimination of coating for corrosion protection due to its high corrosion resistance compared with maraging steel and martensitic stainless steel.