The locomotive framestay is an important casting which supports the sides of the locomotive frame and the smokebox. If this casting is to pass its tests successfully, and stand up to its subsequent work in service, it must be fabricated from the highest quality of steel. Paradoxical as it may seem, the steel required for the purpose is manufactured from scrap and waste material from the engineering shops, the process being rendered possible by the use of the modern electric steel-making furnace.