Superseding
Chinese Name	�����ø�ǿ���������ְ弰�ִ� ��2����:˫���
English Name
Chinese Standard Classification
Professional Classification
ICS Classification
Issued on	2006-11-1
Implemented on	2007-2-1
Abolished on
Issued by	AQSIQ,SAC
Chinese Pages
Word Count	3000 words

 1  Scope
 This Part specifies the terms and definitions, classification and codification, size, shape, weight, technical requirements, inspection and test, packaging, marking and quality certificate for cold-rolled high strength dual phase steel sheets and strips (hereinafter referred to as "steel sheets and strips").
 The steel sheets and strips specified in this Part are mainly used in structural and reinforcing parts and some inner and outer sheets for automobile and are 0.60mm ~ 2.5mm in thickness.
 2  Normative References
 The following documents contain provisions which, through reference in this text, constitute provisions of this Part. For dated reference, subsequent amendments to (excluding the corrections), or revisions of, any of these publications do not apply. However, parties to agreements based on this Part are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.
 GB/T 223.5 Steel and Iron-Determination of Acid-Soluble Silicon and Total Silicon Content-Reduced Molybdosilicate Spectrophotometric Method
 GB/T 223.9 Iron Steel and Alloy-Determination of Aluminium Content-Chrom Azurol S Photometric Method
 GB/T 223.10 Methods for Chemical Analysis of Iron, Steel and Alloy-The Cupferron Separation-Chrome Azurol S Photometric Method for the Determination of Aluminium Content
 GB/T 223.12 Methods for Chemical Analysis of Iron, Steel and Alloy-The Sodium Carbonate Separation-Diphenyl Carbazide Photometric Method for the Determination of Chromium Content
 GB/T 223.26 Iron Steel and Alloy-Determination of Molybdenum Content-The Thiocyanate Spectrophotometric Method
 GB/T 223.58 Methods for Chemical Analysis of Iron, Steel and Alloy-The Sodium Arsenite-Sodium Nitrite Titrimetric Method for the Determination of Manganese Content
 GB/T 223.59 Methods for Chemical Analysis of Iron, Steel and Alloy-The Reduced Molybdoantimonyl Phosphoric Acid Photometric Method for the Determination of Phosphorus Content
 GB/T 223.60 Methods for Chemical Analysis of Iron, Steel and Alloy-The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content