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Q/BQB 494-2021 (Q/BQB 494-2023 Newer Version) PDF English


Search result: Q/BQB 494-2021 (Q/BQB 494-2023 Newer Version)
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
Q/BQB 494-2023English279 Add to Cart 3 days Cold-rolled steel strip for welded pipe use  
Q/BQB 494-2021English115 Add to Cart 0-9 seconds. Auto-delivery. Cold-rolled steel strip for welded pipe use
Q/BQB 494-2018English110 Add to Cart 0-9 seconds. Auto-delivery. Cold-rolled steel strips for welded pipes
Q/BQB 494-2014English90 Add to Cart 0-9 seconds. Auto-delivery. Cold Rolled Strip for Welded Pipe Obsolete
Q/BQB 494-2009English159 Add to Cart 2 days Cold Rolled Strip for Welded Pipe Obsolete
BUY with any currencies (Euro, JPY, GBP, KRW etc.): Q/BQB 494-2021     Newer/related standards: Q/BQB 494-2023

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Q/BQB 494-2021: PDF in English (QBQB 494-2021)

Q/BQB 494-2021 BQB ENTERPRISE STANDARD OF BAOSHAN IRON AND STEEL CO., LTD Replacing Q/BQB 494-2018 Cold-Rolled Steel Strip for Welded Pipe Use 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 ... 4 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 Replaced Q/BQB 494-2018 Cold-Rolled Steel Strip for Welded Pipe Use. Compared with Q/BQB 494-2018, this Document has the major technical changes as follows: --- Cancel the provisions of N component of BHG1-A designation; --- Adjust the lower limit of C component of BHG2 from 0.02 to 0.015; --- Adjust the lower limit of Alt of BHG2 from 0.020 to 0.015; --- Adjust the upper limit of the yield strength of BHG2 from 260MPa to 280MPa; --- Adjust the upper limit of roughness of BHG2 from 1.0μm to 1.3μm; --- 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. 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 494-2009, Q/BQB 494-2014, Q/BQB 494-2018. ......
 
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.