Material Process2.1 Parts may be hot rolled bar, forged bar, rolled rings and upset or contourforgings.2.2 For parts that finish under 20", the material may be bought as rolled or asforged, as long as the mechanical properties listed in 3.0 are satisfied.Forgings for parts that finish over 20" (forged bar, rolled rings, and upset orcontour forgings) shall be normalized after forging. Hot rolled bar isacceptable as rolled, normalized, or annealed.NOTE: Annealed material may not meet the properties listed below.If annealed material is to be supplied certification thatmechanical properties listed in 3.0 are satisfied, is required.2.3 Decarburization: sufficient stock is required on raw material to assure thatafter heat treatment (thermal process from hot rolling, normalizing &annealing) all decarburized surfaces will be removed from all finishedmachined surfaces.