GB/T 2521.2-2025 Active National standards

GB/T 2521.2-2025 Cold-rolled electrical steel delivered in the fully-processed state—Part 2:Grain-oriented steel strip(sheet)

GB/T 2521.2-2025 Cold-rolled electrical steel delivered in the fully-processed state—Part 2:Grain-oriented steel strip(sheet)

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us
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Basic Information

Standard Code: GB/T 2521.2-2025
Standard Type: National standards
Standard Status: Active
is_force_gb: no
CCS Name: Electrician's steel
ICS Name: Special magnetic steel
Publish Date: 2025-08-29
Implement Date: 2026-03-01
Pages: 24 pages

Scope

This document specifies the classification, symbols and grades, general requirements, technical requirements, inspection and testing, determination and re-inspection rules, packaging, marking, and quality certificates, and order content for cold-rolled grain-oriented electrical steel strips (sheets) with a nominal thickness of 0.18 mm, 0.20 mm, 0.23 mm, 0.27 mm, 0.30 mm, and 0.35 mm, which are coated with insulating layers on both sides.
This document applies to cold-rolled grain-oriented electrical steel strips (sheets) supplied in a fully processed state and used in magnetic circuit structures (hereinafter referred to as "steel strips (sheets)").

Development Information

Word Count: 32 Thousand words Pages: 24 pages

Replace the following standards

Referenced Standards

GB/T 247-1997 General rule of acceptance, package, mark and certification for steel plates(sheets) and strips GB/T 247-2008 General rule of package,mark and certification for steel plates(sheets)and strips GB/T 247-2025 General rules of package, mark and certification for steel plate, sheet and strip GB/T 2522-1988 Magnetic sheet and strip—Methods of measurement of interlamination resistance and lamination factor and coat adhesiveness GB/T 2522-2007 Methods of test for the determination of surface insulation resistance and lamination factor of electric sheet and strip GB/T 2522-2017 Methods of test for the determination of coating insulation resistance and coating adhesion of electrical strip and sheet GB/T 2900.60-2002 Electrotechnical terminology—Electromagnetism GB/T 3655-2000 Methods of measurement of the magnetic properties of electrical steel sheet and strip by means of an Epstein frame GB/T 3655-2008 Methods of measurement of the magnetic properties of electrical steel sheet and strip by means of an Epstein frame GB/T 3655-2022 Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an epstein frame GB/T 9637-2001 Electrotechnical terminology— Magnetic materials and components GB/T 13789-2022 Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester GB/T 17505-1998 Steel and steel products General technical delivery requirements GB/T 17505-2016 Steel and steel products—General technical delivery requirements GB/T 18253-2000 Steel and steel products—Types of inspection documents GB/T 18253-2018 Steel and steel products—Types of inspection documents GB/T 19289-2003 Methods of measurement of density, resistivity and stacking factor of electrical steel sheet and strip GB/T 19289-2019 Methods of measurement of resistivity,density and stacking factor of electrical steel strip and sheet YB/T 4292-2012 The geometric characteristics testing method for electrical steel strip (sheet) is provided YB/T 4731-2019 The method of repeated bending test for electrical steel strips

Adopt standards

IEC 60404-8-7:2020

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