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Q/BQB 419-2021 (Q/BQB 419-2023 Newer Version) PDF English


Q/BQB 419-2021 (Q/BQB419-2021, QBQB 419-2021, QBQB419-2021)
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
Q/BQB 419-2023English415 Add to Cart 0-9 seconds. Auto-delivery. Cold-rolled conventional high strength steel sheet and strip
Q/BQB 419-2021English190 Add to Cart 0-9 seconds. Auto-delivery. Cold-rolled conventional high strength steel sheet and strip
Q/BQB 419-2018English130 Add to Cart 0-9 seconds. Auto-delivery. Cold-rolled Ordinary High Strength Steel Sheet and Strip Obsolete
Q/BQB 419-2014English220 Add to Cart 0-9 seconds. Auto-delivery. Cold-rolled ordinary high-strength steel plate and strip Obsolete
Q/BQB 419-2009English239 Add to Cart 3 days Low Alloy High Strength Cold Rolled Steel Plate and Strip Obsolete
Newer version: Q/BQB 419-2023     Standards related to (historical): Q/BQB 419-2023
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Q/BQB 419-2021: PDF in English (QBQB 419-2021)

Q/BQB 419-2021 BQB ENTERPRISE STANDARD OF BAOSHAN IRON AND STEEL CO., LTD Replacing Q/BQB 419-2019 Cold-Rolled Conventional High Strength Steel Sheet and Strip 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 ... 5 2 Mechanical properties ... 6 3 Inspection and test ... 7 4 Appendix ... 9 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 to EN 10268:2006+A1:2013, VDA 239- 100:2016. This Document replaced Q/BQB 419-2019 Cold-Rolled Conventional High Strength Steel Sheet and Strip. Compared with Q/BQB 419-2019, the major technical changes of this Document are as follows: --- Revise the performance indicators of some high-strength IF steel designations; --- Modify the upper limit of C component of B170P1, B210P1, B250P1 designations; --- Modify the upper limit of Mn component of B250P1 designation; --- Add HC600LA, HC700LA and HC800LA designations and corresponding technical index requirements; --- Adjust the sampling provisions for r-value inspection; --- Revise Appendix A Comparison List of Approximate Designations of Related Standards at Home and Abroad; --- Make editorial modification. 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 Appendix 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, Sun Fangyi. ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.