ESR processESR process
In the Electro Slag Refining (ESR) process, a small pool of liquid metal solidifying beneath a layer of super heated slag, isolated from the environment is refined by absorption of inclusions and reduction in sulphur content.
Fast cooling conditions minimize segregation during solidification and carbides formed are finer. ESR steels remain free of defects like blow holes/shrinkage, internal and surface cracks, etc.
ESR steels produced at VA Innova Alloy Steeltech offer superior tool performance due to finer grain size, low inclusion level, better homogeneity and uniform carbide distribution.