Q/BQB 471-2019 English PDF (QBQB471-2019)

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Q/BQB 471-2019: Cold rolled steel sheets and strips for home appliance panels
Q/BQB 471-2019
ENTERPRISE STANDARD OF
BAOSHAN IRON AND STEEL CO., LTD
Replacing Q/BQB 471-2018
Cold-Rolled Steel Sheet and Strip for Home Appliance
Panel
ISSUED ON: FEBRUARY 02, 2019
IMPLEMENTED ON: APRIL 10, 2019
Issued by: Baoshan Iron and Steel Co., Ltd.
Table of Contents
Foreword ... 3
1 Chemical Compositions ... 4
2 Mechanical Properties ... 4
3 Surface Roughness ... 5
4 Inspection and Test ... 5
5 Appendix ... 6
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009 Directives for
Standardization – Part 1: Structure and Drafting of Standards.
This Standard was formulated according to the actual production of the Baoshan Iron
and Steel Co., Ltd.
This Standard replaced Q/BQB 471-2018.
Compared with Q/BQB 471-2018, this Standard made the following content
modifications as follows:
--- Add the description of special control requirements for performance;
--- Add description of special control requirements for roughness;
--- Add technical requirements for average peak density, RPc, in Table 8;
--- Add Appendix A Comparison List of Similar Designations.
This Standard’s Appendix A is informative.
This Standard was proposed by Manufacture and Management Department of
Baoshan Iron and Steel Co., Ltd.
This Standard shall be under the jurisdiction of Manufacture and Management
Department of Baoshan Iron and Steel Co., Ltd.
Drafting organization of this Standard: Manufacture and Management Department of
Baoshan Iron and Steel Co., Ltd.
Modifying staffs of this Standard: Yuan Min, Wang Jun.
The historical edition replaced by this Standard is as follows: Q/BQB 471-2018.
Cold-Rolled Steel Sheet and Strip for Home Appliance
Panel
1 Chemical Compositions