This standard specifies the classification, grade, General requirements, technical requirements, inspection and testing, packaging, marking and quality certificates, etc. This standard is applicable to cold-rolled oriented and cold-rolled non-oriented electrical steel strips (sheets) supplied in full process and used in magnetic circuit structures.
GB/T 2521-2008 Referenced Document
GB/T 13789 Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester*, 2022-10-12 Update
GB/T 18253 Steel and steel products—Types of inspection documents*, 2018-03-15 Update
GB/T 19289 Methods of measurement of resistivity,density and stacking factor of electrical steel strip and sheet*, 2019-06-04 Update
GB/T 228 Metallic materials--Tensile testing at ambient temperature
GB/T 235 Metallic materials.Sheet and strip.Reverse bend test*, 2013-09-06 Update
GB/T 247 General rule of package,mark and certification for steel plates(sheets)and strips*, 2008-12-06 Update
GB/T 2522 Methods of test for the determination of coating insulation resistance and coating adhesion of electrical strip and sheet*, 2017-07-12 Update
GB/T 3655 Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an epstein frame*, 2022-10-12 Update
GB/T 9637 Electrotechnical terminology Magnetic materials and components
GB/T 2521-2008 history
2016GB/T 2521.1-2016 Cold-rolled electrical steel delivered in the fully-processed state.Part 1:Grain non-oriented steel strip (sheet)
2008GB/T 2521-2008 Cold-rolled grain-oriented and non-oriented electrical steel strip(sheet)
1996GB/T 2521-1996 Cold-rolled grain-oriented and non-oriented magnetic steel strip(sheet)