Classification of Iron and steel castings
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Classification of castings hinges on whether finishing operations change their essential character; routine fettling keeps classification as castings.
Classification depends on whether post casting operations alter the essential character of the article; routine fettling and finishing operations such as removal of runners and risers, surface cleaning, chipping, filing, grinding to remove excess material, annealing, stress relieving, proof machining and surface coating that do not change functional aspect, physical identity or degree of completion should be classed as castings under the specific castings heading rather than as parts of machinery.