GB/T 1431-2019 English PDF (GBT1431-2019)

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GB/T 1431-2019: The test method for compressive strength of carbon materials
GB/T 1431-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.050
Q 50
Replacing GB/T 1431-2009
The Test Method for Compressive
Strength of Carbon Materials
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: MAY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative Reference ... 4
3 Principle ... 4
4 Apparatus ... 4
5 Specimen ... 5
6 Test Procedures ... 5
7 Results Calculation ... 6
8 Test Report ... 6
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard replaced GB/T 1431-2009 Carbon Materials - Determination of the
Compressive Strength. Compared with GB/T 1431-2009, this Standard has the major
technical changes as follows:
--- Modify the principle description (see Clause 3 of this Edition; Clause 3 of 2009
Edition);
--- Add the technical requirements of micrometer (see 4.2 of this Edition);
--- Modify the technical requirements of material tester (see 4.4 of this Edition; 4.2
of 2009 Edition);
--- Add the technical requirements for isostatic graphite specimen size and
roughness (see 5.2.4, 5.3 of this Edition);
--- Improve the requirements of diameter test (see 6.2, 6.4 of this Edition; 6.2.1,
6.2.3 of 2009 Edition);
--- Add the loading requirements of isostatic graphite sample (see 6.6 of this Edition).
This Standard was proposed by China Iron and Steel Industry Association.
This Standard shall be under the jurisdiction of National Technical Committee for
Standardization of Steel (SAC/TC 183).
Drafting organizations of this Standard: Sinosteel Advanced Materials (Zhejiang) Co.,
Ltd.; Kaifeng Carbon Co., Ltd., China Pingmei Shenma Group; Shanxi Jinyang Carbon
Co., Ltd.; Shandong Basan Graphite New Material Factory; Shanghai Research
Institute of Materials; Changzhou Xinneng Material Inspection and Testing Co., Ltd.;
and China Metallurgical Information and Standardization Institute.
Chief drafting staffs of this Standard: Yang Hui, Mao Yuzhen, Xu Jianping, Zheng
Jingxu, Chen Wenlai, Wu Jianguo, Duan Xueliang, Zhang Hua, Chen Weixian, Tang
Yonggui, Wang Wendong, Wu Jie, Zhang Qi, and Li Yue.
The historical editions replaced by this Standard are as follows:
--- GB/T 1431-1978, GB/T 1431-1985, GB/T 1431-2009.
The Test Method for Compressive
Strength of Carbon Materials
1 Scope
This Standard specifies the principle, apparatus, specimen, test procedures, test
results and test report for compressive strength of carbon materials.
This Standard is applicable to the determination of the compressive strength of carbon
materials under room temperature.
2 Normative Reference
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) are applicable to this document.
GB/T 1427 Sampling Method for Carbon Material
GB/T 8170 Rules of Rounding off for Numerical Values and Expression and
Judgement of Limiting Values
3 Principle
The compressive strength indicates the pressure limit load that can be withstood by
the material per unit area.
4 Apparatus
4.1 Vernier caliper: measuring range of 0mm~200mm; accuracy of 0.02mm.
4.2 Micrometer: measuring range of 0mm~50mm; accuracy of 0.01mm.
4.3 Blast drying oven: equipped with automatic temperature regulating device; the
temperature can be maintained at 105°C~110°C.