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www.ChineseStandard.net Database: 189760 (18 Oct 2025)

Q/BQB 313-2023 (Q/BQB 313-2019) PDF English

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Q/BQB 313-2019: Continuously-hot-rolled steel sheets and strips for building structures
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Q/BQB 313: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
Q/BQB 313-2023English389 Add to Cart 3 days Continuously hot-rolled steel sheet and strip for building structure  
Q/BQB 313-2019English110 Add to Cart 0-9 seconds. Auto-delivery Continuously-hot-rolled steel sheets and strips for building structures
Q/BQB 313-2018English110 Add to Cart 0-9 seconds. Auto-delivery Continuously-hot-rolled steel sheets and strips for building structures Obsolete

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Similar standards

Q/BQB 312   NMPA RULES66   Q/BQB 311   

Q/BQB 313-2019: Continuously-hot-rolled steel sheets and strips for building structures

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QBQB313-2019
BQB ENTERPRISE STANDARD OF BAOSHAN IRON AND STEEL CO., LTD Replacing Q/BQB 313-2018 Continuously-hot-rolled steel sheets and strips for building structures

Table of Contents

1 Chemical Compositions... 3 2 Mechanical and Process Properties... 3 3 Inspection and Test... 4 Main Technical Indicators and Test Methods (Public Statement)

1 Chemical Compositions

Table 2 Table 3

2 Mechanical and Process Properties

Table 8 Designation Chemical compositions a (mass fraction) a Other alloy elements can be added as required. Designation Chemical compositions (mass fraction) Designation Nominal thickness Tensile test a Upper yield strength b Tensile strength Yield ratio Elongation after break % Test temperature Impact absorbance energy KV2, J V-shaped impact test a a The tensile test takes transverse specimen; while the impact test takes longitudinal specimen. b When the yield phenomenon is not obvious, adopt Rp0.2. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.