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Q/BQB 410-2018

Chinese Standard: 'Q/BQB 410-2018'
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Q/BQB 410-2018English80 Add to Cart 0--10 minutes. Auto immediate delivery. Cold-rolled Carbon Structural Steel Sheet and Strip Obsolete Q/BQB 410-2018
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BASIC DATA
Standard ID Q/BQB 410-2018 (Q/BQB410-2018)
Description (Translated English) (Cold rolled carbon structural steel plate and steel strip)
Sector / Industry Chinese Industry Standard
Classification of Chinese Standard QBQ
Word Count Estimation 4,441
Administrative Organization Baoshan Iron and Steel Co., Ltd.

Q/BQB 410-2018
Q/BQB
ENTERPRISE STANDARD OF
BAOSHAN IRON & STEEL CO., LTD.
Cold-rolled Carbon Structural Steel Sheet and Strip
冷轧碳素结构钢板及钢带
Issued on. February 5, 2018
Issued by. BAOSHAN IRON & STEEL CO., LTD.
Table of Contents
Self-commitment ... 3
Technical Indicator 1 ... 4
Self-commitment
The content that is stipulated in Q/BQB 410-2018 Cold-rolled Carbon Structural Steel
Sheet and Strip, which was formulated and released by our company, complies with
relevant national laws and regulations, and requirements in compulsory standards and
relevant industrial policies. In accordance with the stipulated procedure, this Standard
was approved and issued by our enterprise’s legal representative. Products that are
produced by our company comply with the various technical requirements stipulated
in this Standard. The serial number of this Standard is clearly indicated on product
package. Our company undertakes the responsibility for the authenticity, accuracy and
legitimacy of the disclosed information, and undertakes all the legal liabilities of
consequences triggered by the implementation of this Standard.
BAOSHAN Iron & Steel Co., Ltd.
February 5, 2018

Q/BQB 410-2018
(Cold rolled carbon structural steel plate and steel strip)
Baoshan Iron and Steel Co., Ltd. Enterprise Standard
Cold rolled carbon structural steel plate and steel strip
Published on.2018-02-05
Baoshan Iron and Steel Co., Ltd. released
Self-commitment
The requirements of laws and regulations, mandatory standards and related industrial policies are 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. My company
Responsible for the truthfulness, accuracy and legality of the public information of the statement, and assume full legal responsibility for the consequences of the implementation of this standard.
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 Mn Si PS Alt
St37-2G, S215G ≤0.18 ≤1.50 - ≤0.030 ≤0.025 ≥0.015
S235G ≤0.18 ≤1.60 - ≤0.030 ≤0.025 ≥0.015
St44-3G, S245G ≤0.20 ≤1.60 - ≤0.030 ≤0.025 ≥0.015
St52-3G, S325G ≤0.20 ≤1.60 - ≤0.030 ≤0.025 ≥0.015
B240ZK ≤0.15 ≤1.50 ≤0.4 ≤0.030 ≤0.025 ≥0.015
B280VK ≤0.15 ≤2.00 ≤0.5 ≤0.030 ≤0.025 ≥0.015
2, mechanical properties
table 5
Brand
Stretching test
Yield strength a
MPa
not less than
tensile strength
MPa
Elongation after break b
A80mm
not less than
St37-2G, S215G 215 360~510 22
S235G 235 390~540 20
St44-3G, S245G 245 430~580 18
St52-3G, S325G 325 510~680 16
a Use RP0.2 when the yielding phenomenon is not obvious, otherwise use ReH.
b The sample is the P6 sample in GB/T 228, and the sample direction is transverse.
Table 6
Brand
Stretching test
Yield strength a
MPa
tensile strength
MPa
not less than
Elongation after break b
A50mm
not less than
Nominal thickness mm
0.6~<0.8 0.8~<1.0 1.0~<1.2 1.2~<1.6 ≥1.6
B240ZK 240~360 390 ≥30 ≥31 ≥32 ≥33 ≥34
B280VK 280~400 440 ≥27 ≥28 ≥29 ≥30 ≥31
a Use RP0.2 when the yielding phenomenon is not obvious, otherwise use ReL.
The b sample is the No. 5 sample specified in JIS Z 2241, and ......
Related standard:   Q/BQB 410-2019  Q/BQB 401-2019
   
 
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