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GB/T 37591-2019

Chinese Standard: 'GB/T 37591-2019'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
GB/T 37591-2019English179 Add to Cart Days<=3 Cold-rolled non-grain oriented electrical steel strip specialized for large generators with power of 700 MW or higher Valid GB/T 37591-2019
GB/T 37591-2019Chinese16 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]  

   
Detail Information of GB/T 37591-2019; GB/T37591-2019
Description (Translated English): Cold-rolled non-grain oriented electrical steel strip specialized for large generators with power of 700 MW or higher
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H53
Classification of International Standard: 77.140.40
Word Count Estimation: 10,120
Date of Issue: 2019-06-04
Date of Implementation: 2020-05-01
Drafting Organization: Wuhan Iron and Steel Co., Ltd., Metallurgical Industry Information Standards Institute, Shougang Group Co., Ltd., Baoshan Iron and Steel Co., Ltd.
Administrative Organization: National Steel Standardization Technical Committee (SAC/TC 183)
Regulation (derived from): National Standard Announcement No.7 of 2019
Proposing organization: China Iron and Steel Association
Issuing agency(ies): State Administration of Markets and China National Standardization Administration

GB/T 37591-2019
Cold-rolled non-grain oriented electrical steel strip specialized for large generators with power of 700 MW or higher
ICS 77.140.40
H53
National Standards of People's Republic of China
700MW and above non-oriented cold rolling for large motors
Electrical steel belt
Cold-rolednon-grainorientedelectricalsteelstripspecializedforlarge
generatorswithpowerof700MWorhigher
2019-06-04 release
2020-05-01 implementation
State Administration of Market Supervision
Published by China National Standardization Administration
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by China Iron and Steel Industry Association.
This standard is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
This standard was drafted. Wuhan Iron and Steel Co., Ltd., Metallurgical Industry Information Standards Research Institute, Shougang Group Co., Ltd., Baoshan Iron and Steel Co., Ltd.
Ltd.
The main drafters of this standard. Li Zhun, Hu Shoutian, Zhang Weixu, Hou Jie, Liu Jun, Zhou Xing, Chen Shenglin, Li Qian, Yao Haidong, Wan Zhengwu, Liu Jizhong,
Luo Zhonghan, Huang Shuang, forward.
700MW and above non-oriented cold rolling for large motors
Electrical steel belt
1 Scope
This standard specifies the terms and definitions, symbols and grades, and general specifications of cold-rolled non-oriented electrical steel strips for large electric motors of 700MW and above.
Requirements, technical requirements, inspections and tests, re-inspections and judgments, packaging, marking and quality certificates.
This standard applies to full-process cold-rolled non-oriented electrical steel strips (hereinafter referred to as abbreviations)
Steel strip).
2 Normative references
The following documents are essential for the application of this document. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 228.1-2010 Tensile test for metallic materials-Part 1. Test method at room temperature
GB/T 247 General requirements for packaging, marking and quality certificates of steel plates and strips
GB/T 2521.1 Full-process cold-rolled electrical steel. Part 1. Grain non-oriented steel strip (sheet)
GB/T 2522 Test method for insulation resistance and adhesion of electrical steel strip (sheet) coating
GB/T 2900.60 Electrotechnical Terminology
GB/T 3655 Method for measuring magnetic properties of electrical steel sheet (belt) with Epstein square ring
GB/T 4340.1 Vickers hardness test for metallic materials. Part 1. Test method
GB/T 9637 Electrical Terms, Magnetic Materials and Components
GB/T 13789 Method for measuring magnetic properties of electrical steel sheet (belt) with a single-sheet tester
GB/T 17505 General technical requirements for delivery of steel and steel products
GB/T 18253 Types of inspection documents for steel and steel products
GB/T 19289 Measurement methods for density, resistivity and stacking factor of electrical steel sheets (bands)
YB/T 4292 Test method for geometric characteristics of electrical steel strip
3 terms and definitions
The terms and definitions defined in GB/T 2900.60, GB/T 9637 and GB/T 2521.1 apply to this document.
4 Symbols and grades
4.1 The symbols and corresponding descriptions in this standard are shown in Table 1.
Table 1 Symbols and descriptions
Symbol unit description
PW/kg specific total loss a
P1.0/50 W/kg Specific loss measured with magnetic polarization at 1.0T and frequency at 50Hz
P1.5/50 W/kg Specific loss measured with magnetic polarization at 1.5T and frequency at 50Hz
P1.5/60 W/kg Specific loss measured with magnetic polarization at 1.5T and frequency at 60Hz
P1 W/kg Specific loss of transverse specimen P1.5/50
P2 W/kg Specific loss of longitudinal sample P1.5/50
HA · m-1 magnetic field strength
JT magnetic polarization
J2500 T Magnetic polarization at 2500A/m (expressed as peak value)
J5000 T Magnetic polarization at 5000A/m (expressed as peak value)
BT magnetic induction
μ0 H/m Permeability in vacuum is 4π × 10-7
Anisotropy of T% than total loss (expressed as a percentage)
a is often called iron loss.
4.2 The grades of steel are composed in the order given below.
100 times the nominal thickness of the material (mm)
Hanyu Pinyin acronyms for the word “无” without orientation
100 times the maximum total loss value P1.5/50 (W/kg)
Example.
50W230 represents cold rolled non-oriented electri......
Related standard:   GB/T 37592-2019  GB/T 37593-2019
   
 
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