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Q/BQB 463-2023 English PDF

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Q/BQB 463-2023: Cold-rolled steel sheet and strip for auto parts use

Q/BQB 463: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
Q/BQB 463-2023English279 Add to Cart 3 days [Need to translate] Cold-rolled steel sheet and strip for auto parts use   Q/BQB 463-2023
Q/BQB 463-2018English90 Add to Cart 0--9 seconds. Auto-delivery Cold rolled steel sheets and strips for automotive parts Q/BQB 463-2018

PDF similar to Q/BQB 463-2023


Standard similar to Q/BQB 463-2023

Q/BQB 464   NMPA RULES66   Q/BQB 461   Q/BQB 455   

Basic data

Standard ID Q/BQB 463-2023 (Q/BQB463-2023)
Description (Translated English) Cold-rolled steel sheet and strip for auto parts use
Sector / Industry Chinese Industry Standard
Classification of Chinese Standard QBQ
Word Count Estimation 8,864
Date of Issue 2023-04-09
Date of Implementation 2023-07-01
Issuing agency(ies) Baoshan Iron & Steel Co., Ltd.

Q/BQB 463-2018: Cold rolled steel sheets and strips for automotive parts

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Cold rolled steel sheets and strips for automotive parts) Baoshan Iron and Steel Co., Ltd. Enterprise Standard Cold rolled steel sheets and strips for automotive parts Published on.2018-02-05 Baoshan Iron and Steel Co., Ltd. released Self-commitment Relevant laws and regulations, mandatory standards and related industrial policies, and approved by the legal representative of the enterprise in accordance with the prescribed procedures. . The products produced by our company meet the technical requirements stipulated in this standard, and the standard number is clearly indicated on the corresponding product packaging. . Our company is responsible for the truthfulness, accuracy and legality of the public information of the statement, and bears all the laws for the consequences of the implementation of this standard. responsibility. Baoshan Iron and Steel Co., Ltd. 2018-02-05 Technical indicator 1 Indicator name. Main indicators such as chemical composition and mechanical properties Indicator requirements. The main indicators and test methods such as chemical composition and mechanical properties are shown in the attachment. (See page 4 for details) 1. Chemical composition Table 4 Grade chemical composition (melting analysis) % (mass fraction) C Si Mn PS Alt B320LW ≤0.12 ≤0.05 0.6～1.0 ≤0.030 ≤0.025 ≥0.020 B360LW ≤0.12 ≤0.30 0.8～1.20 ≤0.030 ≤0.025 ≥0.020 B440QZ 0.17～0.27 0.15～0.37 0.4～0.7 ≤0.035 ≤0.035 - BMCP84 0.14～0.25 - - ≤0.04 ≤0.05 - B350JL 0.07～0.13 ≤0.12 0.30～0.60 ≤0.035 ≤0.035 - St12G 0.07～0.14 - 0.35～0.65 ≤0.035 ≤0.035 - St14J ≤0.08 - ≤0.40 ≤0.02 ≤0.03 ≥0.025 Stl2Q ≤0.10 ≤0.05 0.40～1.00 ≤0.030 ≤0.025 ≥0.020 Stl2Q1 ≤0.12 ≤0.30 0.60～1.20 ≤0.030 ≤0.025 ≥0.020 2, mechanical properties table 5 Brand Tensile test a, b 180° bending test (b≥20mm)c Bending diameter Hardness value d HRB yield strength MPa tensile strength MPa Elongation after break A80mm % not less than B320LW ≥210 320～410 28 0a - B360LW ≥215 360～450 26 0a - B440QZ ≥280 440～540 15 1a - BMCP84 - - - - ≥84 B350JL 250～350 350～500 20 1a - St12G ≤280 295~430 28 - - St14J 180～220 280～370 39 - - Stl2Q 215～285 320～390 32 - - Stl2Q1 245~300 370~430 28 0.5a - a RP0.2 is used when there is no obvious yield, otherwise ReL is used. b The sample is the P6 sample in GB/T 228, and the sample direction is transverse. Ca indicates the thickness of the sample, and the direction of the sample is longitudinal. The d hardness is the average of three tests. 3. Inspection and testing Table 7 Number of test items (s) Sample method Test method Chemical analysis 1/furnace GB/T.20066 GB/T 223, GB/T 4336, GB/T.20123, GB/T.20125, GB/T.20126 Tensile test 1/batch GB/T 2975 GB/T 228.1 Method B Bending test 1/batch GB/T 232 Hardness test 1/batch GB/T 230.1 Method B Surface roughness - one quarter of the width of the board GB/T 2523 Indicator requirements document for Technical Indicator 1

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