Abstract:
WCB grade belongs to ASTM STANDARD, This grade is generally subjected to the Normalizing and Annealing heat treatment processes. WCB (UNS Code J03002) is covered by ASTM A216 standard, which specification covers carbon steel castings for valves, fittings, flanges and other pressure-containing parts for high temperature service and the quality required for assembly with other castings or wrought steel parts by fusion welding. These grades are all "cast" grades meaning they are made through "casting" which is a manufacturing process where a liquid material is poured into a mold and allowed to harden. We perform the heat treatment process apart from the annealing and normalizing that oil hardening to observe the changes in the mechanical properties and microstructures of the specified steel. As a result we get the ductility with high strength.
Keywords: heat treatment, oil hardening, mechanical properties, WCB, ASTM