GB/T 4180-2012: Permanent magnetic material of rare earth cobalt

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Scope

This Standard specifies the terms and definitions, classification, designations,
appearance and defects, dimensions and tolerances, shape and position tolerances,
surface roughness, primary magnetic properties and temperature properties of rare earth
cobalt permanent magnet materials and their test methods. At the same time, this
Standard gives the typical values of some electromagnetic properties and some
mechanical and physical properties. This Standard also specifies the inspection rules,
marking, packaging, transportation and storage of materials.
This Standard applies to permanent magnetic material of rare earth cobalt.

Basic Data

Standard ID	GB/T 4180-2012 (GB/T4180-2012)
Description (Translated English)	Permanent magnetic material of rare earth cobalt
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	K15
Classification of International Standard	29.035
Word Count Estimation	18,162
Older Standard (superseded by this standard)	GB/T 4180-2000
Quoted Standard	GB/T 2828.1-2003; GB/T 2900.60-2002; GB/T 3217-1992; GB/T 9637-2001
Regulation (derived from)	National Standards Bulletin No. 41 of 2012
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the rare earth permanent magnet materials drill terms and definitions, classifications, grades, appearance and defects, dimensions and tolerances, shape and position tolerances, surface roughness, the main magnetic and temperature