Pratt & Whitney - HMI Metal Powders Homogeneous Metals, Inc., (HMI) is the global leader in nickel-base structural powder, providing more than half of the powder superalloy used in today's commercial and military aircraft, as well as a substantial amount for land-based turbines, off-shore oil extraction, and other applications. Hmipowder.com~Site InfoWhoisTrace RouteRBL Check