GB/T 25046-2010 High magnetic induction cold-rolled non-oriented electrical steel strip and sheet

GB/T 228-2002 Metallic materials—Tensile testing at ambient temperature GB/T 228.1-2010 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.1-2021 Metallic materials—Tensile testing—Part 1:Method of test at room temperature GB/T 228.2-2015 Metallic materials—Tensile testing—Part 2:Method of test at elevated temperature GB/T 228.3-2019 Metallic materials—Tensile testing—Part 3:Method of test at low temperature GB/T 228.4-2019 Metallic materials—Tensile testing—Part 4:Method of test in liquid helium GB/T 235-1999 Metallic materials—Sheet and strip 3mm thick or less—Reverse bend test GB/T 235-2013 Metallic materials—Sheet and strip—Reverse bend test 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 2521-1996 Cold-rolled grain-oriented and non-oriented magnetic steel strip(sheet) GB/T 2521-2008 Cold-rolled grain-oriented and non-oriented electrical steel strip(sheet) GB/T 2521.1-2016 Cold-rolled electrical steel delivered in the fully-processed state—Part 1:Grain non-oriented steel strip(sheet) GB/T 2521.2-2016 Cold-rolled electrical steel delivered in the fully-processed state—Part 2:Grain-oriented steel strip(sheet） 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 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 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 13789-1992 Magnetic sheet and strip—Methods of measurement of magnetic properties by means of a single sheet tester GB/T 13789-2008 Methods of measurement of the magnetic properties of magnetic sheet and strip by means of a single sheet tester 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 GB/T 247-2025 General rules of package, mark and certification for steel plate, sheet and strip GB/T 2521.2-2025 Cold-rolled electrical steel delivered in the fully-processed state—Part 2:Grain-oriented steel strip(sheet)