Meltio Material Datasheet Rev 2.0 17-4PH / ER 630 /1.4542 / UNS SI 7400 17-4PH is a precipitation-hardening martensitic stainless steel with excellent mechanical properties and corrosion resistance. It is a versatile material with high strength, good toughness, and good resistance to stress corrosion cracking, making it ideal for a wide range of applications in the aerospace and chemical industries.

Meltio Material Datasheet Tomography Computed Tomography Scan of 3D printed sample part in 17-4PH showing small detectable voids. Resolution of 24 pm per pixel. The as printed microstructure of 17-4 PH stainless steel is heterogeneous and mostly martensitic with some retained austenite. Solution Annealing and Age Hardening results in a significantly refined grain structure with a predominantly martensitic microstructure and equiaxed morphology. lOOx Magnification lOOOx Magnification lOOOx Magnification Relative density as 3D printed Results show that specimens printed using Meltio’s wire-laser...