ASTM A976-13
Standard Classification of Insulating Coatings for Electrical Steels by Composition, Relative Insulating Ability and Application
- Standard No.
- ASTM A976-13
- Release Date
- 2013
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM A976-18
- Latest
- ASTM A976-18
- Scope
4.1 This classification establishes categories of insulating coatings based on their chemical nature, relative insulating ability, and typical applications. These categories describe general physical and chemical characteristics of the coatings that are useful in making broad estimates of their insulating ability and suitability for various applications.
1.1 This document classifies insulating coatings for electrical steels according to their composition, relative 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 more detailed information concerning surface insulation resistivity values be required.
1.2 This classification is to be used in conjunction with the various specifications for flat-rolled electrical steels under the jurisdiction of Committee A06, including Specifications A345, A677, A683, A726, A840, and A876. However, in those instances in which the coating descriptions and characteristics differ between this classification and any of the specifications, this classification shall supersede the specification.
1.3 The values stated in customary (cgs-emu and inch-pound) units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units which are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM A976-13 Referenced Document
- ASTM A340 Standard Terminology of Symbols and Definitions Relating to Magnetic Testing
- ASTM A345 Standard Specification for Flat-Rolled Electrical Steels for Magnetic Applications
- ASTM A677 Standard Specification for Nonoriented Electrical Steel Fully Processed Types
- ASTM A683 Standard Specification for Nonoriented Electrical Steel, Semiprocessed Types
- ASTM A717/A717M Standard Test Method for Surface Insulation Resistivity of Single-Strip Specimens
- ASTM A726 Standard Specification for Cold-Rolled Magnetic Lamination Quality Steel, Semiprocessed Types
- ASTM A840 Standard Specification for Fully Processed Magnetic Lamination Steel
- ASTM A876 Standard Specification for Flat-Rolled, Grain-Oriented, Silicon-Iron, Electrical Steel, Fully Processed Types
- ASTM A937/A937M Standard Test Method for Determining Interlaminar Resistance of Insulating Coatings Using Two Adjacent Test Surfaces
ASTM A976-13 history
- 2018 ASTM A976-18 Standard Classification of Insulating Coatings for Electrical Steels by Composition, Relative Insulating Ability and Application
- 2013 ASTM A976-13 Standard Classification of Insulating Coatings for Electrical Steels by Composition, Relative Insulating Ability and Application
- 2003 ASTM A976-03(2008) Standard Classification of Insulating Coatings by Composition, Relative Insulating Ability and Application
- 2003 ASTM A976-03 Standard Classification of Insulating Coatings by Composition, Relative Insulating Ability and Application
- 1997 ASTM A976-97 Standard Classification of Insulating Coatings by Composition, Relative Insulating Ability and Application
