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GB/T 40282-2021: Hot-rolled twin roll cast steel sheets and strips of structural quality and high strength steel
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 40282-2021 | English | 279 |
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Hot-rolled twin roll cast steel sheets and strips of structural quality and high strength steel
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GB/T 40282-2021
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Basic data | Standard ID | GB/T 40282-2021 (GB/T40282-2021) | | Description (Translated English) | Hot-rolled twin roll cast steel sheets and strips of structural quality and high strength steel | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H46 | | Word Count Estimation | 14,175 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 40282-2021: Hot-rolled twin roll cast steel sheets and strips of structural quality and high strength steel
---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.
Hot-rolled twin roll cast steel sheets and strips of structural quality and high strength steel
ICS 77.140.50
CCSH46
National Standards of People's Republic of China
Structural grade and high-strength twin-roll casting and hot rolling
Sheet steel and steel strip
(ISO 15179.2012, Hot-roledtwin-rolcaststeelsheetofstructural
Released on 2021-08-20
2022-03-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document uses the redrafting method to modify and adopt ISO 15179.2012 "Structural Grade and High Strength Grade Hot-rolled Twin-roll Cast-rolled Thin Steel Plates".
Compared with ISO 15179.2012, this document has technical differences.
The set vertical single line (|) is marked, and a list of technical differences and their reasons is given in Appendix A for reference.
This document has made the following editorial changes.
--- Modify the standard name from "Structural Grade and High-strength Grade Hot-rolled Twin-roll Casting Steel Sheet" to "Structural Grade and High-Strength Twin-roll Casting
Rolling thin steel plates and steel strips, change the standard name in order to be consistent with my country's standard system;
---Informative Appendix B has been added, which provides the process of the twin-roll casting and rolling process.
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Iron and Steel Association.
This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
Drafting organizations of this document. Ningbo Iron and Steel Co., Ltd., Metallurgical Industry Information Standards Research Institute, Hebei Jingye Iron and Steel Co., Ltd.
The main drafters of this document. Ouyang Wei, Wu Hongyi, Li Qian, Dou Weixue, Tang Xiaoyong, Zhang Weixu, Zhang Shaokai, Zhao Yanling, Tian Zijian, Xie Li,
Yan Jianghui, Zhang Borui, Peng Yongsheng.
Structural grade and high-strength twin-roll casting and hot rolling
Sheet steel and steel strip
1 Scope
This document specifies the characteristics of structural grade and high-strength hot-rolled thin steel plates and steel strips produced by the twin-roll casting-rolling process, the twin-roll casting-rolling process
See Appendix B. This product is suitable for applications with special mechanical performance requirements. This product is usually used in the delivery state and is used for
Bolted, riveted or welded structure. This product is usually produced on a narrow strip mill rather than a thick plate mill.
Structural grade double-roll cast-rolled hot-rolled thin steel sheet and steel strip are produced into carbon steel with specified mechanical properties, which can be purchased to obtain many grades
(See Table 5).
High-strength twin-roll cast-rolled hot-rolled thin steel sheets and steel strips are strengthened by microalloys, and their production is manufactured to have the specified mechanical properties, and at the same time
Procurement obtains many grades and categories (see Table 6).
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 223.12 Methods for chemical analysis of iron, steel and alloy. The sodium carbonate separation-diphenylcarbazide photometric method for the determination of chromium content
GB/T 223.14 Methods for chemical analysis of iron, steel and alloy-The tantalum reagent extraction spectrophotometric method for the determination of vanadium content
GB/T 223.18 Methods for chemical analysis of iron, steel and alloy. The sodium thiosulfate separation-iodometric method for the determination of copper content
GB/T 223.23 Iron, steel and alloy-Determination of nickel content-Dimethylglyoxime spectrophotometric method
GB/T 223.26 Steel and alloy determination of molybdenum content-Thiocyanate spectrophotometric method
GB/T 223.40 Steel and alloy determination of niobium content-Chlorosulfonol S spectrophotometric method
GB/T 223.60 Methods for chemical analysis of iron, steel and alloy. The perchloric acid dehydration gravimetric method for the determination of silicon content
GB/T 223.62 Methods for chemical analysis of iron, steel and alloy-The butyl acetate extraction spectrophotometric method for the determination of phosphorus content
GB/T 223.63 Methods for chemical analysis of iron, steel and alloy-The sodium (potassium) periodate photometric method for the determination of manganese content
GB/T 223.69 Steel and alloy carbon content determination after combustion in tube furnace gas volume method
GB/T 223.72 Determination of Sulfur Content in Iron and Steel and Alloy Gravimetric Method
GB/T 223.84 Iron, Steel and Alloy Determination of Titanium Content Diantipyrine Methane Spectrophotometric Method
GB/T 228.1 Tensile test of metallic materials Part 1.Room temperature test method (GB/T 228.1-2010, ISO 6892-
1.2009, MOD)
GB/T 247 General Provisions for Packaging, Marking and Quality Certificates of Steel Plates and Strips
GB/T 709 Hot-rolled steel plate and steel strip size, shape, weight and allowable deviation
GB/T 2975 Steel and steel product mechanical properties test sampling location and sample preparation (GB/T 2975-2018, ISO 377.
2017, MOD)
GB/T 4336 Carbon steel and low- and medium-alloy steel determination of multi-element content Spark discharge atomic emission spectrometry (conventional method)
GB/T 8170 Numerical rounding rules and the expression and determination of limit values
GB/T 17505 General technical requirements for delivery of steel and steel products (GB/T 17505-2016, ISO 404.2013, MOD)
GB/T 20066 Sampling and sample preparation methods for the determination of the chemical composition of steel and iron (GB/T 20066-2006, ISO 14284.
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