GB/T 17951.2-2014 Cold-rolled non-oriented electrical steel strip delivered in the semi-processed state

GB/T 17951.2-2002 Cold-rolled grain non-oriented electrical steel strip (sheet) delivered in the semi-processed state

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 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 2523-1990 Cold rolled sheet(strip)—Measuring method for surface roughness GB/T 2523-2008 Measuring method of surface roughness and peak count for cold-rolled metal sheet(strip) GB/T 2523-2022 Measuring method of surface roughness,peak count and waviness for cold-rolled metal sheet and strip 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 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 081-1996 Rule for rounding off of numberical values and judgement of testing values for technical standards of metallurgy YB/T 081-2013 Metallurgical technology standards for numerical rounding and determination of testing values 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)

IEC 60404-8-3:2005