ASTM A683-05 - 15.8.2005
 
1. Scope

1.1 This specification covers the detailed requirements to which flat-rolled, nonoriented semiprocessed electrical steel shall conform.

1.2 This steel is produced to specified maximum core-loss values and is intended primarily for commercial power frequency (50- and 60-Hz) applications in magnetic devices. Desirable core-loss and permeability characteristics are developed through heat treatment by the user.

1.3 These nonoriented, semiprocessed electrical steels are low carbon, silicon-iron or silicon-aluminum-iron alloys containing up to about 2.5 % silicon and less than 1 % aluminum.

1.4 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 that are provided for information only and are not considered standard.

 
2. Referenced Documents

A343/A343M-14(2019)

Standard Test Method for Alternating-Current Magnetic Properties of Materials at Power Frequencies Using Wattmeter-Ammeter-Voltmeter Method and 25-cm Epstein Test Frame

A664-15(2022)

Standard Practice for Identification of Standard Electrical Steel Grades in ASTM Specifications

A719/A719M-14(2019)

Standard Test Method for Lamination Factor of Magnetic Materials

A720/A720M-02(2021)

Standard Test Method for Ductility of Nonoriented Electrical Steel

A971-00

Standard Test Method for Measuring Edge Taper and Crown of Flat-Rolled Electrical Steel Coils

A976-18(2026)

Standard Classification of Insulating Coatings for Electrical Steels by Composition, Relative Insulating Ability and Application

A700-14(2019)

Standard Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment

A34/A34M-06(2021)

Standard Practice for Sampling and Procurement Testing of Magnetic Materials

A340-23a

Standard Terminology of Symbols and Definitions Relating to Magnetic Testing (Includes all amendments and changes 12/19/2023).