GB/T 25048-2019_English: PDF (GB/T25048-2019)
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Metallic materials -- Tube -- Ring tensile test
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GB/T 25048-2019
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GB/T 25048-2010 | English | 199 |
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Standard ID | GB/T 25048-2019 (GB/T25048-2019) | Description (Translated English) | Metallic materials -- Tube -- Ring tensile test | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | H23 | Classification of International Standard | 77.040.10 | Word Count Estimation | 6,647 | Date of Issue | 2019-08-30 | Date of Implementation | 2020-07-01 | Drafting Organization | Shanghai Entry-Exit Inspection and Quarantine Bureau Industrial Products and Raw Material Testing Technology Center, Metallurgical Industry Information Standards Research Institute | Administrative Organization | National Steel Standardization Technical Committee (SAC/TC 183) | Proposing organization | China Iron and Steel Association | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | Standard ID | GB/T 25048-2010 (GB/T25048-2010) | Description (Translated English) | Metallic materials. Tube. Ring tensile test | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | H23 | Classification of International Standard | 77.040.10 | Word Count Estimation | 5,510 | Date of Issue | 2010-09-02 | Date of Implementation | 2011-06-01 | Adopted Standard | ISO 8496-1998, IDT | Drafting Organization | Shanghai Entry-Exit Inspection and Quarantine Bureau | Administrative Organization | National Steel Standardization Technical Committee | Regulation (derived from) | National Standard Approval Announcement 2010 No.4 (Total No.159) | Proposing organization | China Iron and Steel Association | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | Summary | This standard specifies the method for tensile test specimens until fracture metal pipe ring metal pipe leaving the sample surface and internal defects exposed. This standard can also be used to assess the ductility of the metal pipe, This standard applies to the outer diameter greater than 150mm, pipe wall thickness no greater than 40mm and 100mm diameter greater than metal pipe. |
GB/T 25048-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.040.10
H 23
GB/T 25048-2019 / ISO 8496:2013
Replacing GB/T 25048-2010
Metallic materials - Tube - Ring tensile test
(ISO 8496:2013, IDT)
ISSUED ON: AUGUST 30, 2019
IMPLEMENTED ON: JULY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Principle ... 4
3 Test equipment ... 4
4 Sample ... 5
5 Test procedure ... 5
6 Test report ... 5
Metallic materials - Tube - Ring tensile test
1 Scope
This Standard specifies the metallic tube ring tensile test methods that stretch
the sample until it breaks to expose the surface and internal defects of the
sample. This Standard can also be used to evaluate the ductility of metallic tube.
This Standard is applicable to the metallic tube, of which the outer diameter is
more than 150 mm, the wall thickness is not more than 40 mm and the inner
diameter is more than 100 mm.
2 Principle
Cut a section of tube ring sample from one end of the metallic tube; let the
metallic tube ring sample bear the circumferential deformation until fracture
occurs.
3 Test equipment
Use 2 cylindrical pins of the same diameter; their axes are parallel, and
relatively movable; remain parallel during the movement.
In principle, the diameter of the cylindrical pin shall be the minimum value of the
allowable strength. The diameter of the cylindrical pin shall be at least 3 times
the wall thickness of the tube ring, if the inner diameter of the metallic tube ring
is allowed (as shown in Figure 1).
in millimeters
......
GB/T 25048-2010
Metallic materials.Tube.Ring tensile test
ICS 77.040.10
H23
National Standards of People's Republic of China
Metallic material pipe ring tensile test method
(ISO 8496.1998, IDT)
Issued on. 2010-09-02
2011-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard uses the translation method identical with ISO 8496.1998 "pipe ring metal material tensile test method" (in English).
For ease of use, this standard made the following modifications.
a) "this International Standard" be replaced by "this national standard";
b) Remove the preface to the international standards.
The standard proposed by China Iron and Steel Association.
This standard is under the jurisdiction of the National Steel Standardization Technical Committee.
This standard was drafted. Shanghai Exit Inspection and Quarantine, Steel Research Institute.
The main drafters of this standard. Hua Yi, Wu Yiwen, TESTING AND Xu Lingyun, Chu people's livelihood, Jijing.
Metallic material pipe ring tensile test method
1 Scope
This standard specifies the stretch metal pipe ring specimen until it breaks leaving the metal pipe ring sample surface and internal defects exposed test side
law. This standard can also be used to assess the ductility of the metal tube.
This standard applies to outer diameter greater than 150mm, wall thickness of not more than 40mm and an inner diameter greater than 100mm metal tube.
Principle 2
Cut section of pipe ring samples from the end of the metal pipe, metal pipe ring specimens until fracture occurs hoop strain.
3 Test Equipment
3.1 two cylindrical pins, two of the same diameter and parallel to the axis of the cylindrical pin can be moved relative to, and remain parallel during the move.
Millimeters
1 a schematic diagram of the test apparatus
In principle, the cylindrical pin diameter should be selected so that it can meet the minimum required strength test requirements, the inner diameter of the metal pipe ring specimens allowed
Case, the diameter of the cylindrical pin should be at least 3 times the tube wall thickness of the ring. (As shown in Figure 1)
4 Sample
4.1 test specimen shall be taken from the original metal pipe section pipe ring, and the two end faces perpendicular to the axis of the metal tube.
4.2 length of the sample (pipe ring width) should be about 15mm. If the metal pipe wall thickness greater than 15mm, this time may be equal to the length of the sample
Wall thickness.
End faces 4.3 ring specimens should be no burr, edge sample edge allows file or otherwise render rounded or chamfered.
Note. If the test results meet the test requirements, may not be rounded or chamfered.
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