GB/T 1348-2009 (GB/T 1348-2019 Newer Version) PDF English
Search result: GB/T 1348-2009 (GB/T 1348-2019 Newer Version)
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| GB/T 1348-2019 | English | 395 |
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Spheroidal graphite iron castings
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| GB/T 1348-2009 | English | 95 |
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Spheroidal graphite iron castings
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| GB/T 1348-1988 | English | 519 |
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Spheroidal graphite iron castings
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GB/T 1348-2009: PDF in English (GBT 1348-2009) GB/T 1348-2009
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
Replacing GB/T 1348-1988
Spheroidal Graphite Iron Castings
(ISO 1083.2004, Spheroidal graphite cast irons - Classification, MOD)
ISSUE ON. MARCH 5, 2009
IMPLEMENTED ON. SEPTEMBER 1, 2009
Issued by. The Standardization Administration of China (SAC);
The General Administration of Quality Supervision, Inspection
and Quarantine (GAQSIQ) of the People's Republic of China
Table of Contents
Foreword ... 4
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 7
3.1 Graphite spheroidizing treatment ... 7
3.2 Relevant wall thickness ... 7
4 Trademark of Spheroidal-graphite Cast Iron ... 7
5 Ordering Information ... 7
6 Working Method and Chemical Composition ... 8
7 Technical Requirements ... 8
7.1 Capability of the Single-cast Test sample ... 8
7.2 Properties of Attached Test Sample ... 9
7.3 Properties of Casting Body ... 11
7.4 Hardness-based Classification ... 11
7.5 Metallographic Structure ... 11
7.6 Geometric Shape and Dimensional Tolerance ... 11
7.7 Weight Deviation ... 12
7.8 Casting Surface Quality ... 12
7.9 Defects and Repairing of Castings ... 12
7.10 Special Requirements ... 12
8 Sampling ... 12
8.1 General Provisions ... 12
8.2 Single-cast Test Block ... 12
8.3 Attached Test Block ... 15
8.4 Test Sample of Main... 16
8.5 Test sample ... 16
8.6 Composition of Sampling Batch and Inspection Quantity ... 18
9 Test Method ... 18
9.1 Tensile Test ... 18
9.2 Impact Test ... 18
9.3 Hardness Test ... 19
9.4 Metallographic Test ... 19
10 Re-inspection ... 19
10.1 Re-inspection conditions ... 19
10.2 Test Validity ... 19
10.3 Evaluation and Re-inspection of the Test Result ... 19
10.4 Heat Treatment for Test Block and Castings ... 20
11 Other Inspections for Casting ... 20
11.1 Surface Quality ... 20
11.2 Physical Dimension and Dimensional Tolerance ... 20
11.3 Analysis of Chemical Composition ... 20
11.4 Nondestructive Test ... 20
11.5 Defects ... 20
11.6 Optional Test Methods ... 20
12 Mark and Quality Certificate ... 21
13 Rust Protection, Packaging and Storage ... 21
Appendix A ... 22
A.2 Material Requirements ... 22
A.3 Metallurgical Structure ... 22
A.4 Additional Information ... 22
Appendix B (Normative Appendix) ... 24
Appendix C (Normative Appendix) ... 25
C.1 General Provisions ... 25
C.2 Classification ... 25
C.3 Determination of the hardness range of spheroidal graphite cast iron that can
meet the performance requirements of tensile strength ... 25
C.4 Sampling Requirements ... 26
C.5 Test Method ... 26
C.6 Frequency and Quantity of Hardness Test ... 26
C.7 Metallographic Structure ... 26
Appendix D (Informative Appendix) ... 27
D.1 Ductility Determination Method ... 27
D.2 Comparison of the Ductility of Cast Iron and Cast Steel ... 27
D.3 Test Method ... 28
Appendix E (Informative Appendix) ... 30
Appendix F ... 31
Appendix G ... 32
Foreword
This Standard is modified in relation to ISO1083.2004" Spheroidal graphite cast irons".
The main technical differences between this Standard and the adopted international standard
are as follows.
— The structure is revised significantly. The repeated table’s note and some of the technical
requirements in ISO1083. 2004 are deleted.
— ADD requirements for the appearance quality of the cast, relevant detection method, sampling
batch program and test rules, other testing items for the cast, sign, certification of quality,
antirust requirements for cast, packing requirements for cast, and storage and transportation
requirements for cast. These contents are indispensable in foundry practice and test. However,
ISO1083. 2004 does not contain these contents. This Standard amends these contents, and
improves the adaptability of the standard.
— ADD 7.5~7.10.
— ADD 8.6.
— ADD all contents in chapter 11, chapter12, and chapter 13.
Relative clauses of foreign advanced standards such as ASTM A536-2004 "Standard
Specification for Ductile Iron Castings” and JIS G5502 "Spheroidal graphite iron castings" are
served as references in this Standard.
This Standard replaces GB/T 1348-1988 "Spheroidal graphite iron castings". The major
technical differences between GB/T1348-1988 and this Standard are as follows.
— ADD trademark of spheroidal-graphite cast iron;
— ADD low-temperature impact performance index of the Spheroidal-graphite cast iron;
— ADD specifications of the test lug and test sample;
— ADD requirements for the sampling batch;
— ADD spheroidal-graphite cast iron QT500-10 technical specification in Append...
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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