GB/T 1348-2019 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| 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
| Obsolete |
| GB/T 1348-1988 | English | 519 |
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Spheroidal graphite iron castings
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GB/T 1348-2019: Spheroidal graphite iron castings---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/GBT1348-2019
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.80
J 31
Replacing GB/T 1348-2009
Spheroidal Graphite Iron Castings
(ISO 1083.2018, Spheroidal Graphite Cast Irons - Classification, MOD)
Issued on. DECEMBER 31, 2019
Implemented on. JULY 1, 2020
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 6
2 Normative References... 6
3 Terms and Definitions... 8
4 Designations of Spheroidal Graphite Cast Iron... 9
5 Order Information... 9
6 Manufacturing Methods and Chemical Composition... 10
7 Technical Requirements... 10
8 Preparation of Test Specimens... 17
9 Test Methods... 25
10 Inspection Rules... 28
11 Marking and Quality Certificate... 30
12 Rust Prevention, Packaging and Storage... 31
Appendix A (informative) Structural Changes of this Standard Compared with
ISO 1083.2018... 32
Appendix B (informative) Supplementary Information of Solid Solution
Strengthened Ferritic Spheroidal Graphite Cast Iron... 34
Appendix C (informative) Guideline Values of Mechanical Properties of Casting
Body Specimens... 38
Appendix D (normative) Difference of Elongation Measured when Lo = 5d and
Lo = 4d... 41
Appendix E (informative) Classification by Hardness... 43
Appendix F (informative) Spheroidization Rate (or spheroidal graphite ratio) 47
Appendix G (informative) Mechanical Properties and Physical Properties of
Spheroidal Graphite Cast Iron Materials... 48
Appendix H (informative) Procedures of Cutting Test Specimens... 51
Appendix I (informative) A Comparison Table of Material Designations of
Domestic and Overseas Spheroidal Graphite Cast Iron... 52
Foreword
This Standard was drafted in accordance with the rules in GB/T 1.1-2009.
This Standard serves as a replacement of GB/T 1348-2009 Spheroidal Graphite Iron
Castings. In comparison with GB/T 1348-2009, the main technical changes are as follows.
---The Scope is modified (see Chapter 1; Chapter 1 of Version 2009);
---Terms and definitions are added (see 3.1, 3.2, 3.5 ~ 3.9);
---Low-temperature impact performance indexes of spheroidal graphite cast iron
are modified (see Table 2; Table 4 of Version 2009);
---Three designations of spheroidal graphite cast iron are added (see Table 1);
---The tensile properties of solid solution strengthened ferritic spheroidal graphite
cast iron are added (see Table 3);
---Side-by-side cast sample is added (see 8.2.4).
This Standard adopts the re-drafting law in the modification and adoption of ISO
1083.2018 Spheroidal Graphite Cast Irons - Classification.
In comparison with ISO 1083.2018, this Standard makes structural adjustments.
Appendix A lists out a comparison table of chapter numbers between this Standard
and ISO 1083.2018.
The technical differences between this Standard and ISO 1083.2018, and the reasons
of the differences are as follows.
---In terms of Normative References, this Standard makes certain adjustments
with technical differences, so as to adapt to the technical conditions of China.
The adjustments are intensively reflected in Chapter 2 “Normative References”.
The specific adjustments are as follows.
GB/T 229, which modifies and adopts International Standard, is used to
replace ISO 148-1;
GB/T 9441, which modifies and adopts International Standard, is used to
replace ISO 945-1;
GB/T 231.1, which modifies and adopts International Standard, is used to
replace ISO 6506-1;
GB/T 228.1, which equivalently adopts International Standard, is used to
replace ISO 6892-1;
GB/T 5612, which modifies and adopts International Standard, is used to
replace ISO/TR 15931;
The following references are added. GB/T 223.3, GB/T 223.4, GB/T 223.60,
GB/T 223.72, GB/T 223.83, GB/T 223.86, GB/T 5611, GB/T 5677, GB/T
6060.1, GB/T 6414, GB/T 9443, GB/T 9444, GB/T 11351, GB/T 24234, GB/T 34904.
---For ease of use, the repeated terms in GB/T 5611 are deleted; the term “Solid
Solution Strengthened” is added (see 3.7).
---In order to comply with the structure of the product standard, the technical
conditions for the appearance quality of castings are added (see 7.4 ~ 7.8).
---In order to satisfy the demands for product testing and ensure the accuracy of
testing, the test methods for the quality performance of castings are added (see 9.3 ~ 9.10).
---In order to satisfy the users’ demands, the requirements for cast marking,
accompanying documents, storage and transportation are added (see Chapter 11 and Chapter 12).
This Standard was proposed by and shall be under the jurisdiction of National
Technical Committee on Casting of Standardization Administration of China (SAC/TC 54).
The drafting organizations of this Standard. Shenyang Research Institute of Foundry
Co., Ltd.; Guangdong Zhongtian Chuangzhan Group; Hefei JAC Casting Co., Ltd.;
Anhui Shenjian Technology Co., Ltd.; Tianrun Crankshaft Co., Ltd.; CRRC Qishuyan
Institute Co., Ltd.; Ningxia KOCEL Group; Laizhou Xinzhongyao Machinery Co., Ltd.;
Yantai Product Quality Supervision and Inspection Institute; Jiangsu SINOJIT Wind
Energy Technology Co., Ltd.; Shandong Longji Machinery Co., Ltd.; Weifang
Changsheng Pipe Co., Ltd.; Changge Fuxing Auto Parts Co., Ltd.; Jiangxi Zhangshu
Fuling Internal Combustion Engine Parts Co., Ltd.; Yuzhou Henglilai Alloy Co., Ltd.;
Suzhou Dongya Mechanical Foundry; Shandong Huijin Co., Ltd.; Anhui Research
Institute of Mechanical Science; Hohai University; Shanghai Honggang Power Station
Equipment Casting and Forging Co., Ltd.; Shanghai Volkswagen Co., Ltd.; Ningxia
Wear Casting Co., Ltd.
The drafters of this Standard. Zhang Yin, Chen Yongcheng, Song Liang, Cong
Jianchen, Zhao Yongfu, Wang Zehua, Ye Tianhan, Pei Bing, Xue Ruili, Yu Xuru, Qian
Kuncai, Wu Baocheng, Jiang Tianfang, Wu Tieming, Ruan Jiangang, Yuan Xiaolei,
Yang Jinming, Zhang Shipeng, Zhao Xuelong, Yang Hongsheng, Chen Tao, Ke Zhimin,
Feng Meizhen, Li Hong, Zhang Shouquan, Cui Lanfang, Wang Meixi, Zhou Hongtao,
Wang Yingzhan, Qian Dongfang, Leng Aiping, Liu Honglei, Liu Yang, Sun Linlin, Zhang
Jie, Wang Xiaoning.
The issuing of the previous versions.
---GB/T 1348-1978, GB/T 1348-1988, GB/T 1348-2009.
Spheroidal Graphite Iron Castings
1 Scope
This Standard specifies the designations, order information, manufacturing methods,
chemical composition, technical requirements, sample preparation, test methods,
inspection rules, marking, quality certificate, rust prevention, packaging and storage of
spheroidal graphite iron castings.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 223.3 Methods for Chemical Analysis of Iron, Steel and Alloy - The Diantipyryl
Methane Phosphomolybdate Gravimetric Method for the Determination of
Phosphorous Content
GB/T 223.4 Alloyed Steel - Determination of Manganese Content - Potentiometric or
Visual Titration 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 223.72 Iron, Steel and Alloy - Determination of Sulfur Content - Gravimetric
Method
GB/T 223.83 Steel and Iron - Determination of High Sulfur Content - Infrared
Absorption Method after Combustion in an Induction Furnace (GB/T 223.83-2009, ISO
13902.1997, IDT)
GB/T 223.86 Steel and Iron - Determination of Total Carbon Content - Infrared
Absorption Method after Combustion in an Induction Furnace (GB/T 223.86-2009, ISO
9556.1989, IDT)
GB/T 228.1 Metallic Materials - Tensile Testing - Part 1.Method of Test at Room
Temperature (GB/T 228.1-2010, ISO 6892-1.2009, IDT)
GB/T 229 Metallic Materials - Charpy Pendulum Impact Test Method (GB/T 229-2007,
ISO 148-1.2006, MOD)
GB/T 231.1 Metallic Materials - Brinell Hardness Test - Part 1.Test Method (GB/T
231.1-2018, ISO 6506-1.2014, MOD)
GB/T 231.2 Metallic Materials - Brinell Hardness Test - Part 2.Verification and
Calibration of Testing Machines (GB/T 231.2-2012, ISO 6506-2.2005, MOD)
GB/T 231.3 Metallic Materials - Brinell Hardness Test - Part 3.Calibration of Reference
Blocks (GB/T 231.3-2012, ISO 6506-3.2005, MOD)
GB/T 5611 Foundry Terminology
GB/T 5612 Code for Representing Cast Iron (GB/T 5612-2008, ISO/TR 115931.2004, MOD)
GB/T 5677 Castings - Radiographic Testing (GB/T 5677-2018, ISO 4993.2015, MOD)
GB/T 6060.1 Surface Roughness Comparison Specimen - Part 1.Casting Surface
GB/T 6414 Castings - Dimensional Tolerances and Geometrical Tolerances and
Machining Allowances (GB/T 6414-2017, ISO 8062-3.2007, MOD)
GB/T 9441 Metallographic Test for Spheroidal Graphite Cast Iron (GB/T 9441-2009, ISO 945-1.2008, MOD)
GB/T 9443 Penetrant Testing for Steel Castings (GB/T 9443-2007, ISO 4987.1992, IDT)
GB/T 9444 Magnetic Particle Testing for Steel Castings (GB/T 9444-2007, ISO 4986.1992, IDT)
GB/T 11351 Mass Tolerances of Casting
GB/T 24234 Cast Iron - Determination of Multi-element Contents - Spark Discharge
Atomic Emission Spectrometric Method (routine method)
GB/T 34904 Spheroidal Graphite Iron Castings - Ultrasonic Testing
3 Terms and Definitions
What is defined in GB/T 5611, and the following terms and definitions are applicable to this document.
3.1 Spheroidal Graphite Cast Iron
Spheroidal graphite cast iron refers to cast iron with iron, carbon and silicon as the
basic elements, and with carbon mainly exists in the form of spheroidal graphite.
3.2 Ferritic to Pearlitic Spheroidal Graphite Cast Iron
Ferritic to pearlitic spheroidal graphite cast iron refers to spheroidal graphite cast iron
which contains ferrite or pearlite, or a mixed matrix of ferrite and pearlite.
4 Designations of Spheroidal Graphite Cast Iron
The expression method for the designations of spheroidal graphite cast iron shall
comply with the stipulations of GB/T 5612.It is divided into two types. ferritic to pearlitic
spheroidal graphite cast iron and solid solution strengthened ferritic spheroidal graphite cast iron.
5 Order Information
The following order information shall be provided by the demand-side of castings.
6 Manufacturing Methods and Chemical Composition
The manufacturing methods and chemical composition of spheroidal graphite cast
iron shall be determined by the supply-side on its own. The chemical composition of
spheroidal graphite cast iron shall not be used as the basis for the acceptance
inspection of castings.
7 Technical Requirements
The performance index values listed in this Standard are the performance values
of spheroidal graphite cast iron cast with sand molds or casting molds with thermal
conductivity equivalent to sand molds. Upon agreement between the demand-side and
the supply-side, it may also be used for spheroidal graphite cast iron cast by other methods.
8 Preparation of Test Specimens
The prepared test specimens shall be able to represent the manufactured castings.
The type of test specimens shall be selected in accordance with the mass and wall thickness of the castings.
9 Test Methods
Tensile test shall be conducted in accordance with the stipulations of GB/T 228.1.
Tensile specimens shall preferentially use test specimens with a diameter of 14 mm.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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