Standard Specification for Flat-Rolled, Grain-Oriented, Silicon-Iron, Electrical Steel, Fully Processed Types (Includes all amendments and changes 7/11/2017).
NORMA vydána dne 1.4.2017
Designation standards: ASTM A876-17e1
Publication date standards: 1.4.2017
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM
This specification covers the detailed requirements for specified grades of flat-rolled, grain-oriented, fully processed low-carbon silicon-iron electrical steels, whose low core loss and high permeability in the direction of rolling have been achieved by appropriate metallurgical processing. These steels are primarily used in transformer cores operating at moderate to high magnetic flux densities at commercial power frequencies. The ASTM core-loss type designations for the electrical steels covered here are 18G041, 23G045, 27G051, 30G058, 35G066, 23H070, 27H074, 30H083, 35H094, 23P060, 27P066, 23Q054, and 27Q057. Steels may be acquired in any of four conditions, classified according to a combination of material form and surface type or treatment as desired for the expected end use. Materials shall conform to specified values of magnetic properties (core loss, permeability, and magnetic aging), physical dimensions (thickness, length, and width), and mechanical properties (lamination factor and ductility).
Keywords:
electrical steel, grain-oriented, high permeability,, ICS Number Code 77.140.50 (Flat steel products and semi-products)