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GB/T 25047-2016 English PDF

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GB/T 25047-2016: Metallic materials -- Tube -- Ring-expanding test
Status: Valid

GB/T 25047: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 25047-2016English94 Add to Cart 2 days [Need to translate] Metallic materials -- Tube -- Ring-expanding test Valid GB/T 25047-2016
GB/T 25047-2010English199 Add to Cart 3 days [Need to translate] Metallic materials -- Tube -- Ring-expanding test Obsolete GB/T 25047-2010

PDF similar to GB/T 25047-2016


Standard similar to GB/T 25047-2016

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Basic data

Standard ID GB/T 25047-2016 (GB/T25047-2016)
Description (Translated English) Metallic materials -- Tube -- Ring-expanding test
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H23
Classification of International Standard 77.040.10
Word Count Estimation 5,558
Date of Issue 2010-09-02
Date of Implementation 2017-07-01
Older Standard (superseded by this standard) GB/T 25047-2010
Regulation (derived from) National Standard Announcement 2016 No.14
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 25047-2016: Metallic materials -- Tube -- Ring-expanding test

---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.
Metallic materials - Tube - Ring-expanding test ICS 77.040.10 H23 National Standards of People's Republic of China Replace GB/T 25047-2010 Test method for expansion of metallic materials (ISO 8495..2013, IDT) 2016-08-29 released 2017-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released Directory Preface I 1 Scope 1 2 symbol, name and unit 1 3 test principle 2 4 test equipment 2 5 Sample 2 6 Test procedure 2 7 Test Report 2

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard instead of GB/T 25047-2010 "metal material tube ring expansion test method", compared with GB/T 25047-2010, The main technical changes are as follows. Figure 1 to increase the title "ring expansion test diagram" (see Figure 1); - Chapter 3 The title is amended to read "Test Principle" (see Chapter 3); - replace Chapter 7 d) "Degree of expansion of the specimen" with "Relative expansion rate" (see Chapter 7). This standard uses the translation method equivalent to ISO 8495..2013 "metal material tube ring expansion test method". This standard has made the following editorial changes. --- increase the figure in Figure 1. This standard is proposed by China Iron and Steel Industry Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183). The drafting of this standard. Shanghai Entry-Exit Inspection and Quarantine Bureau of industrial and raw materials testing technology center, metallurgical industry information standards Academy. The main drafters of this standard. Ji Jing, Wang Biao, Xu Lingyun, Wu Yiwen, Dong Li. This standard replaced the previous version of the standard release. --- GB/T 25047-2010. Test method for expansion of metallic materials

1 Scope

This standard specifies the use of conical mandrels to extend the metal tube ring specimen until a fracture occurs to reveal the surface of the metal tube and the tube Test method for defects inside the wall. The method can also be used to assess the ability of a metal tube to undergo plastic deformation. This standard applies to the outer diameter of 18mm ~ 150mm, wall thickness of 2mm ~ 16mm metal pipe ring. 2 symbols, names and units The symbols, names and units used in this standard are shown in Table 1 and Figure 1. Table 1 Symbols, names and units Symbol name unit aa metal pipe wall thickness mm D metal pipe ring original diameter mm Dmmax. The maximum diameter of the conical top core mm The minimum diameter of the conical top core Du The maximum outer diameter of the metal tube after the expansion test mm k The top of the core has a length of the taper portion (ie, the face length) mm L length of metal tube test specimen mm a in the steel pipe standard also used T to represent the wall thickness of the pipe. Figure 1 Schematic diagram of ring expansion test

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