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1.1 This document classifies insulating coatings according to their composition, insulating ability, and functionality. The purpose of this classification is to assist users of insulating coatings by providing general information about the chemical nature and use of the coatings, as well as to provide important data concerning limits to their use, that is, relative insulating ability, punchability, temperature stability, weldability, and fabricability. Specific surface insulation resistivity values for each coating are not included in this classification. The user is referred to the flat-rolled electrical steel specifications noted in 1.2 should be more detailed information concerning surface insulation resistivity values be required.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A345 Specification for Flat-Rolled Electrical Steels for Magnetic Applications
A677 Specification for Nonoriented Electrical Steel Fully Processed Types
A683 Specification for Nonoriented Electrical Steel, Semiprocessed Types
A717/A717M Test Method for Surface Insulation Resistivity of Single-Strip Specimens
A726 Specification for Cold-Rolled Magnetic Lamination Quality Steel, Semiprocessed Types
A840 Specification for Fully Processed Magnetic Lamination Steel
A876 Specification for Flat-Rolled, Grain-Oriented, Silicon-Iron, Electrical Steel, Fully Processed Types
A937/A937M Test Method for Determining Interlaminar Resistance of Insulating Coatings Using Two Adjacent Test Surfaces
ICS Number Code 01.040.25 (Manufacturing engineering (Vocabularies)); 25.220.01 (Surface treatment and coating in general)
ASTM A976-97, Standard Classification of Insulating Coatings by Composition, Relative Insulating Ability and Application, ASTM International, West Conshohocken, PA, 1997, www.astm.orgBack to Top