Q/BQB 461-2021 English PDF (QBQB461-2021)

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Q/BQB 461-2021: Cold-rolled steel sheet and strip for vitreous enamelling
Q/BQB 461-2021
BQB
ENTERPRISE STANDARD OF
BAOSHAN IRON AND STEEL CO., LTD
Replacing Q/BQB 461-2018
Cold-Rolled Steel Sheet
and Strip for Vitreous Enameling
ISSUED ON: JUNE 04, 2021
IMPLEMENTED ON: AUGUST 10, 2021
Issued by: Baoshan Iron and Steel Co., Ltd.
Table of Contents
Foreword ... 3
1 Chemical composition ... 4
2 Mechanical properties ... 4
3 Inspection and test ... 5
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1: Rules for the Structure and Drafting of Standardizing
Documents.
This Document was formulated by reference of EN 10209:2013.
This Document replaced Q/BQB 461-2018 Cold Rolled Steel Plate and Strip for
Enamel.
Compared with Q/BQB 461-2018, the major technical changes of this Document are
as follows:
--- Revise the scope of supply width specification;
--- Revise the upper limit requirement of tensile strength of BTC1 designation in
Table 4;
--- Editorial modifications.
Please note some contents of this Document may involve patents. The issuing agency
of this Document does not assume the responsibility to identify these patents.
The Annex A of this Document is informative.
This Document was proposed by Manufacturing and Management Department of the
Baoshan Iron and Steel Co., Ltd.
This Document shall be under the jurisdiction of Manufacturing and Management
Department of the Baoshan Iron and Steel Co., Ltd.
Drafting organization of this Document: Manufacturing and Management Department
of the Baoshan Iron and Steel Co., Ltd.
Chief drafting staffs of this Document: Yuan Min.
The historical editions replaced by this Document are as follows:
Q/BQB 461-2003, Q/BQB 461-2009, Q/BQB 461-2014, Q/BQB 461-2018.