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Class Code Information
Phraseology
Heat Treating – MetalShall not be assigned to an employer engaged in operations described by another classification unless the operations subject to Code 3307 are conducted as a separate and distinct business.
Description
Code 3307 applies to employers engaged in all forms of heat-treating metal for other concerns. The operations involve heat treating and annealing of metals by means of controlled applications of heat. Heat treating of metal changes the physical and chemical properties of ferrous and non-ferrous metals in order to produce the desired hardness and toughness of products such as edge tools, machined parts, etc.
Assignment by Analogy
No InformationOperations to be Separately Rated
Metal anodizing – plating. Electroplating, galvanizing, tinning or plating metal. Oxidizing metal – dipping in acids or caustics – chemical milling. Refer to Code 3372 “Electroplating.”