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GB/T 20887.2-2010 English PDF

GB/T 20887.2-2010 (GB/T20887.2-2010, GBT 20887.2-2010, GBT20887.2-2010)
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GB/T 20887.2-2010English95 Add to Cart 0--9 seconds. Auto-delivery Continuously hot rolled high strength steel sheet and strip for automobile -- Part 2: High hole expansion steel Obsolete GB/T 20887.2-2010
GB/T 20887.2-2022English185 Add to Cart 0--9 seconds. Auto-delivery Continuously hot rolled high strength steel sheet and strip for automobile -- Part 2: High hole expansion steel Valid GB/T 20887.2-2022


BASIC DATA
Standard ID GB/T 20887.2-2010 (GB/T20887.2-2010)
Description (Translated English) Continuously hot rolled high strength steel sheet and strip for automobile. Part 2: High hole expansion steel
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H46
Classification of International Standard 77.140.50
Word Count Estimation 9,982
Date of Issue 2010-09-02
Date of Implementation 2011-06-01
Quoted Standard GB/T 222; GB/T 223.5; GB/T 223.9; GB/T 223.12; GB/T 223.17; GB/T 223.23; GB/T 223.26; GB/T 223.54; GB/T 223.59; GB/T 223.60; GB/T 223.62; GB/T 223.63; GB/T 223.64; GB/T 223.78; GB/T 228; GB/T 247; GB/T 709; GB/T 2975; GB/T 4336; GB/T 6394; GB/T 8170; GB/T 10561; GB/T 15825.4; GB/T 17505; GB/T 20066; GB/T 20123; GB/T 20125; GB/T 20126
Drafting Organization Baoshan Iron & Steel Co., Ltd.
Administrative Organization National Steel Standardization Technical Committee
Regulation (derived from) National Standard Approval Announcement 2010 No.4 (Total No.159)
Proposing organization China Iron and Steel Association
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies the classification of high-reaming steel hot rolling steel sheet and strip and the Code, dimensions, shape, Weight, technical requirements, inspection and test, packaging, marking and quality certificate. This section applies to a thickness of not more than 6 mm reaming with high performance and the resulting hot rolling steel sheet and cut each into a vertical slit cut into strips, hereinafter referred to as the steel sheet and strip.

Standards related to: GB/T 20887.2-2010

GB/T 20887.2-2010
Continuously hot rolled high strength steel sheet and strip for automobile.Part 2. High hole expansion steel
ICS 77.140.50
H46
National Standards of People's Republic of China
High - strength hot - rolled steel sheet and strip for automobile
Part 2. Highly expanded steel
Part 2. Highholeexpansionsteel
2010-09-02 release
2011-06-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China
China National Standardization Management Committee released
Preface
GB/T 20887 "automotive high-strength hot-rolled steel sheet and strip" is divided into five parts.
Part 1. High Yield Strength Steel for Cold Forming
Part 2. Highly expanded steel
Part 3. Duplex steel
Part 4. Phase change induced plasticity steel
Part 5. Martensitic steel
This part is part 2 of GB/T 20887.
Appendix A and Appendix B of this section are informative.
This part is made by China Iron and Steel Industry Association.
This part is headed by the National Steel Standardization Technical Committee.
This part of the drafting unit. Baoshan Iron and Steel Co., Ltd., Metallurgical Industry Information Standards Institute, Shougang Corporation.
This part of the main drafters. Li Yuguang, Tu Shu Lin, Xu Hongwei, Huang Jinhua, Yu Chengfeng, Sun Zhongming, Wang Xiaohu, Shi Hongyan, Xu Qing,
Zhang jiansu, Lu Min.
High - strength hot - rolled steel sheet and strip for automobile
Part 2. Highly expanded steel
1 Scope
This section specifies the classification and code, size, shape, weight, technical requirements, inspection and testing of hot rolled steel sheets and strips for high-expansion steel,
Packaging, signs and quality certificates.
This part is applicable to steel plates with high expansion performance and not more than 6mm.
Slitting steel, hereinafter referred to as steel and steel.
2 normative reference documents
The terms of this document are incorporated by reference in this section and become part of this section. Whichever is the date of the reference file, which is followed by all
(Excluding corrigenda) or revisions do not apply to this part, however, encourage parties to reach an agreement under this section
Whether you can use the latest version of these files. For undated references, the latest edition applies to this section.
GB/T 222 Determination of chemical composition of finished steel
GB/T 223.5 Determination of silicon and total silicon content of iron and silicon in steel - Reduced molybdosilicate spectrophotometric method
Steel and alloys - Determination of aluminum content - Chromazu S spectrophotometric method GB/T
GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - Sodium carbonate separation - Diphenyl acid milling - bishydrazine photometric method for the determination of chromium content
GB/T 223.17 Methods for chemical analysis of iron, steel and alloy The diantipyrylmethane photometric method for the determination of titanium content
Iron and steel - Determination of nickel content - Butadiene oxime spectrophotometric method GB/T
Iron and steel - Determination of molybdenum content - Thiocyanate spectrophotometric method GB/T
GB/T 223.54 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of nickel content
GB/T 223.59 Determination of phosphorus content of iron, steel and alloy - Bismuth phosphorus molybdenum blue spectrophotometric method and antimony phosphomolybdenum blue spectrophotometric method
GB/T 223.60 Methods for chemical analysis of iron, steel and alloy - Perchloric acid dehydration gravimetric method for the determination of silicon content
GB/T 223.62 Methods for chemical analysis of iron, steel and alloy The butyl acetate extraction spectrophotometric method for the determination of phosphorus
GB/T 223.63 Methods for chemical analysis of iron, steel and alloy The sodium periodate (potassium) spectrophotometric method for the determination of manganese content
Iron and steel - Determination of manganese content - Flame atomic absorption spectrometric method GB/T
GB/T 223.78 Methods for chemical analysis of iron, steel and alloy The curcumin direct spectrophotometric method for the determination of boron content
Test method for room temperature tensile testing of metallic materials GB/T
General requirements for GB/T 247 steel sheet and strip packing, marking and quality certificates
GB/T 709 Hot rolled steel sheet and strip size, shape, weight and allowable deviation
GB/T 2975 steel and steel products mechanical properties test sampling location and sample preparation
GB/T 4336 carbon steel and low alloy steel spark source atomic emission spectrometric method (conventional method)
GB/T 6394 Determination of average grain size of metals
Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170
GB/T 10561 Determination of content of nonmetallic inclusions in steel - Standard rating chart Microscopy method
Sheet metal forming properties and test methods - Part 4. Reaming test
General technical requirements for delivery of steel and steel products GB/T 17505
Sampling and sample preparation methods for the determination of chemical constituents of steels and iron GB/T
GB/T .20123 Determination of total carbon and sulfur content of steel - High frequency induction furnace after combustion infrared absorption method (conventional method)
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