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GB/T 5313-2023: Steel plate with through-thickness properties Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 5313: Historical versions
GB/T 5313-2023: Steel plate with through-thickness properties---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/GBT5313-2023GB NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA ICS 77.140.50 CCS H 46 Replacing GB/T 5313-2010 Steel plate with through-thickness properties Issued on. SEPTEMBER 7, 2023 Implemented on. APRIL 1, 2024 Issued by. State Administration for Market Regulation; Standardization Administration of PRC. Table of ContentsForeword... 3 1 Scope... 5 2 Normative references... 5 3 Terms and definitions... 5 4 Grade expression method... 5 5 Technical requirements... 6 6 Sample and specimen preparation... 7 7 Test methods... 10 8 Inspection rules... 10ForewordThis document was drafted in accordance with the provisions of GB/T 1.1-2020 Directives for standardization - Part 1.Rules for the structure and drafting of standardizing documents. This document replaces GB/T 5313-2010 Steel plates with through-thickness characteristics. Compared with GB/T 5313-2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The term and definition of "through-thickness properties" is added (see Chapter 3); b) The requirements for the Reduction of Area are changed (see Notes 1 and 2 of Table 2; see Table 2 of the 2010 version); c) The specimen preparation of steel plates is changed (see 6.2; see 5.2 of the 2010 edition); d) The requirements for specimens of steel plates with extensions are changed (see 6.3; see 5.3 of the 2010 edition); e) The requirements for specimens of steel plates without extensions are changed (see 6.4; see 5.3 of the 2010 edition); f) The specimen preparation and type diagrams are changed (see Figure 1 of 6.3, Figure 2 and Figure 3 of 6.4; see Figure B.1~Figure B.3 of the 2010 version); g) The inspection rules are changed (see 8.1; see Chapter 7 of the 2010 edition); h) The re-inspection rules are changed (see 8.3.1; see 7.3.1 of the 2010 version); i) The supplementary requirements for steel plates, specimen preparation and type are deleted (see Appendix A and Appendix B of the 2010 edition). Please note that some content in this document may be subject to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document was proposed by the China Iron and Steel Association. This document shall be under the jurisdiction of the National Technical Committee on Steel of Standardization Administration of China (SAC/TC183). Drafting organizations of this document. Wuyang Iron and Steel Co., Ltd., China Metallurgical Information and Standardization Institute, Nanyang Hanye Special Steel Co., Ltd., Xinyu Iron and Steel Co., Ltd., Hunan Valin Xiangtan Iron and Steel Co., Ltd., Fujian Sansteel Minguang Co., Ltd., Hebei Puyang Iron and Steel Co., Ltd. Main drafters of this document. Lin Zhangguo, Pang Huiyong, Sun Menghan, Xu Shaopu, Sun Lefei, Yang Jianhua, Zhou Wenbo, Chen Kexiao, Liu Sheng, Zhang Peng, Zhang Weixu, Kang Wenju, Liu Zhifang, Zhang Yongwei, Chen Zhengquan, Wang Dongyang, Li Qian, Fu Zhongyuan, Tian Zijian. This document was first published in 1985, and revised for the first time in 2010; this is the second revision. Steel plate with through-thickness properties1 ScopeThis document specifies the grade expression method, technical requirements, sample and specimen preparation, test methods, and inspection rules for steel plates with through-thickness properties. This document applies to killed steel plates with a thickness of 15 mm~400 mm.2 Normative referencesThe following documents contain the provisions which, through normative reference in this document, constitute the essential provisions of this document. For the dated referenced documents, only the versions with the indicated dates are applicable to this document; for the undated referenced documents, only the latest version (including all the amendments) is applicable to this document. GB/T 228.1 Metallic materials - Tensile testing - Part 1.Method of test at room temperature GB/T 2970 Method for ultrasonic testing of thicker steel plates GB/T 17505 Steel and steel products - General technical delivery requirements3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 through-thickness properties The deformation performance that is perpendicular to the surface of the steel plate and reflects the ability of the steel plate to resist lamellar tearing.4 Grade expression methodThe grade of steel plate with through-thickness properties consists of the original grade of the product and the level of through-thickness properties (Z15, Z25, or Z35).5 Technical requirements5.1 The sulfur content (smelting analysis) of steel corresponding to different through- thickness property levels shall comply with the provisions of Table 1. 5.2 The level of through-thickness properties of the steel plate, the corresponding average value of reduction of area, and the minimum value of a single specimen shall comply with the provisions of Table 2. 5.3 Steel plates with through-thickness properties shall be subjected to ultrasonic flaw detection. Unless otherwise specified, ultrasonic flaw detection shall be carried out in accordance with GB/T 2970, and the result shall meet the requirements of quality level III.6 Sample and specimen preparation6.1 Sampling The sample shall be cut in the middle (at 1/2 of the width) of one end along the main rolling direction (longitudinal direction) of the steel plate. For steel plates made from steel ingots, it shall be ensured that it is taken at the head end of the corresponding steel ingot. 6.2 Specimen preparation According to the following steps, specimens with or without extensions shall be prepared from the sample thar is cut according to the requirements of 6.1.The axis of the specimens shall be perpendicular to the surface of the steel plate. Specimens with extensions are specified as follows. 6.3 Specimens with extensions The preparation and type of specimens with extensions are shown in Figure 1. Before welding, all rust, oxide scale, grease, and other debris on the surface of the specimen shall be removed. Weld the extension to both surfaces of the specimen by using friction welding or other suitable methods to ensure that the heat-affected zone is minimized. The specimen diameter (d0) is as follows. 6.4 Specimens without extensions The preparation and type of specimens without extensions are shown in Figures 2 and 3. The specimen diameter (d0) is as follows.7 Test methodsThe tensile test in thickness direction shall be conducted in accordance with GB/T 228.1, and the reduction of area shall be determined in accordance with GB/T 228.1.The reduction of area is calculated according to formula (1), formula (2), and formula (3).8 Inspection rules8.1 Batch grouping rules Z25 and Z35 grade steel plates shall be tested for through-thickness properties of steel plates one by one. 8.2 Inspection The average value of the reduction of area of a group of three specimens shall comply with the specified average value. The reduction of area of one specimen is allowed to be lower than the specified minimum average value, but it shall not be lower than the specified minimum value of a single specimen. When the above requirements cannot be met, three spare specimens will be used for additional testing. 8.3 Re-inspection 8.4 Retest If the specimen is improperly processed or poorly welded, it shall be discarded. If the specimen breaks at the weld or heat-affected zone, the specimen shall be invalid. At this time, additional specimens can be taken from the same sample and the test can be repeated. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 5313-2023 be delivered?Answer: The full copy PDF of English version of GB/T 5313-2023 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 5313-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 5313-2023_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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