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Q/BQB 479-2021 (Q/BQB 479-2023 Newer Version) PDF English


Q/BQB 479-2021 (Q/BQB479-2021, QBQB 479-2021, QBQB479-2021)
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
Q/BQB 479-2023English279 Add to Cart 3 days Cold-rolled strip of full hard carbon steel  
Q/BQB 479-2021English115 Add to Cart 0-9 seconds. Auto-delivery. Cold-rolled strip of full hard carbon steel
Q/BQB 479-2018English110 Add to Cart 0-9 seconds. Auto-delivery. Fully Hard Carbon Steel Cold Continuous Rolling Coil Obsolete
Newer version: Q/BQB 479-2023     Standards related to (historical): Q/BQB 479-2023
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Q/BQB 479-2021: PDF in English (QBQB 479-2021)

Q/BQB 479-2021 BQB ENTERPRISE STANDARD OF BAOSHAN IRON AND STEEL CO., LTD Replacing Q/BQB 479-2019 Cold-Rolled Strip of Full Hard Carbon Streel ISSUED ON: JUNE 04, 2021 IMPLEMENTED ON: AUGUST 10, 2021 Issued by: Baoshan Iron and Steel Co., Ltd. Table of Contents Foreword ... 3 1 Allowable deviation of the width of steel strip ... 4 2 Chemical composition ... 4 3 Surface quality ... 4 4 Inspection and test ... 4 5 Annex ... 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 according to the actual production situation of the Baoshan Iron and Steel Co., Ltd. This Document replaced Q/BQB 479-2019. Compared with Q/BQB 479-2019, this Document has the major technical changes as follows: --- Adjust the upper limit of the supply thickness from 3.2mm to 3.5mm; --- Add surface quality distinction requirements; --- Supplement the inspection lot batching rules; --- Make 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, and Wang Hui. The historical editions replaced by this Document are as follows: Q/BQB 479-2018, Q/BQB 479-2019. ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.