HOME   Cart(0)   Quotation   About-Us Tax PDFs Standard-List Powered by Google www.ChineseStandard.net Database: 189760 (8 Feb 2025)

GB/T 3074.1-2021 English PDF (GB/T 3074.1-2008, GB/T 3074.1-1982)

GB/T 3074.1-2021_English: PDF (GB/T3074.1-2021)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 3074.1-2021English110 Add to Cart 0--9 seconds. Auto-delivery The test method for flexural strength of carbon materials Valid GB/T 3074.1-2021
GB/T 3074.1-2008English90 Add to Cart 0--9 seconds. Auto-delivery Method for the determination of the flexure strength of graphite electrodes Obsolete GB/T 3074.1-2008
GB/T 3074.1-1982English199 Add to Cart 2 days [Need to translate] Method for determination of the flexure strength of graphite electrodes Obsolete GB/T 3074.1-1982


BASIC DATA
Standard ID GB/T 3074.1-2021 (GB/T3074.1-2021)
Description (Translated English) The test method for flexural strength of carbon materials
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q50
Classification of International Standard 29.050
Word Count Estimation 6,656
Date of Issue 2021-08-20
Date of Implementation 2022-03-01
Older Standard (superseded by this standard) GB/T 3074.1-2008
Drafting Organization Shanxi Juxian Graphite New Material Co., Ltd., Sinosteel New Material (Zhejiang) Co., Ltd., Shandong Bayan Graphite New Material Factory, Kaifeng Pingmei New Carbon Material Technology Co., Ltd., Datong Yulinde Graphite New Material Co., Ltd., Chenzhou Municipal Product Quality Supervision and Inspection Institute, Beijing Inspike Technology Co., Ltd., Metallurgical Industry Information Standards 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, National Standardization Administration

BASIC DATA
Standard ID GB/T 3074.1-2008 (GB/T3074.1-2008)
Description (Translated English) Method for the determination of the flexure strength of graphite electrodes
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q51
Classification of International Standard 29.050
Word Count Estimation 5,554
Date of Issue 2008-05-13
Date of Implementation 2008-11-01
Older Standard (superseded by this standard) GB/T 3074.1-1982
Quoted Standard GB/T 1427; GB/T 8170
Drafting Organization Sinosteel Jilin Carbon Co., Ltd.
Administrative Organization Metallurgical Industry Information Standards Institute
Regulation (derived from) National Standard Approval Announcement 2008 No.8 (Total No.121)
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 flexural strength of graphite electrodes measuring principle, test procedure, , specimens, instruments calculated results. This section applies to the flexural strength of graphite electrodes was measured at room temperature.

BASIC DATA
Standard ID GB/T 3074.1-1982 (GB/T3074.1-1982)
Description (Translated English) Method for determination of the flexure strength of graphite electrodes
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Q51
Classification of International Standard 29.040
Word Count Estimation 2,279
Date of Issue 1982/5/10
Date of Implementation 1983/3/1
Regulation (derived from) Announcement of Newly Approved National Standards No. 8, 2008 (No. 121 overall)
Proposing organization Ministry of Metallurgical Industry of the People Republic of China
Issuing agency(ies) State Standards Administration


GB/T 3074.1-2021 GB NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA ICS 29.050 CCS Q 50 Replacing GB/T 3074.1-2008 The test method for flexural strength of carbon materials ISSUED ON: AUGUST 20, 2021 IMPLEMENTED ON: MARCH 1, 2022 Issued by: State Administration for Market Regulation; Standardization Administration of PRC. Table of Contents Foreword ... 3 Introduction ... 5 1 Scope ... 6 2 Normative references ... 6 3 Terms and definitions ... 6 4 Principle ... 6 5 Instruments and equipment ... 7 6 Specimens ... 8 7 Test steps ... 9 8 Result calculation ... 9 9 Test report ... 10 Foreword This document was drafted in accordance with the provisions of GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents. This document is Part 1 of GB/T 3074. GB/T 3074 has been published in the following parts: -- GB/T 3074.1 The test method for flexural strength of carbon materials; -- GB/T 3074.2 Method for the determination of the elastic modulus of graphite electrodes; -- GB/T 3074.3 Method for the determination of the oxidation resistance of graphite electrodes; -- GB/T 3074.4 Method for the determination of the coefficient of thermal expansion of graphite electrodes. This document replaces GB/T 3074.1-2008 Method for the determination of the flexure strength of graphite electrodes. Compared with GB/T 3074.1-2008, in addition to structural adjustments and editorial modifications, the main technical changes of this document are as follows: -- The scope of application has been modified (see Chapter 1; see Chapter 1 of the 2008 edition); -- The normative references have been modified (see Chapter 2; see Chapter 2 of the 2008 edition); -- The chapter "Terms and definitions" is added (see Chapter 3); -- The principle of the four-point loading method is added (see 4.2; see Chapter 3 of the 2008 edition); -- The instruments and equipment are modified (see 5.1, 5.2, 5.3, and 5.4; see Chapter 4 of the 2008 edition); -- The specimen dimensions and processing requirements are modified (see Chapter 6; see Chapter 5 of the 2008 edition); -- The test procedures are modified (see Chapter 7; see Chapter 6 of the 2008 edition); The test method for flexural strength of carbon materials 1 Scope This document specifies the principles, instruments, equipment, specimens, test procedures, result calculations, and test reports for determining the flexural strength of carbon materials. This document is applicable to the determination of the flexural strength of carbon materials by using the four-point loading method at room temperature. 2 Normative references The provisions of the following documents constitute the essential clauses of this document through normative references in this text. Among them, for referenced documents with dates, only the versions corresponding to the dates are applicable to this document; for referenced documents without dates, the latest versions (including all amendments) are applicable to this document. GB/T 1427 Sample method of carbon material GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values 3 Terms and definitions There are no terms or definitions that require definition in this document. 4 Principle 4.1 Flexural strength is a measure of the maximum load that a material can withstand when it is bent and fractured by an external force. Its value is the magnitude of the normal stress on the cross-section of the specimen when it is bent and fractured. 4.2 Four-point loading method: Place the specimen on two load-bearing blocks and apply load at their center until the specimen breaks. The load is evenly distributed on the two points. The flexural strength is calculated based on the load at the time of specimen breakage, the distance between the load edge and the support point, and the diameter (height, width) of the test specimen. 5 Instruments and equipment 5.1 Vernier caliper: The measuring range is 0 mm~200 mm, and the accuracy is 0.02 mm. 5.2 Micrometer: The measuring range is 0 mm~50 mm, and the accuracy is 0.01 mm. 5.3 Air blast drying oven: with automatic temperature control device, capable of maintaining the temperature at (110±5) ℃. 5.4 Material testing machine: It is recommended that the maximum load of the specimen be at least 5% ~ 90% of the sensor range, and the accuracy level shall not be lower than level 1. 5.5 Test fixture: The fixture shall ensure that the force applied to the specimen is normal and has no eccentricity through the adjustment of the spherical bearing seat or roller bearing assembly. The distance between the upper and lower indenters can be adjusted to meet the needs of samples of different sizes. The fixture shall have a device to prevent the specimen from sliding. The device is shown in Figure 1. The fixture dimensions for the sample of Φ20 mm×160 mm are as follows: the upper indenter spacing is 40 mm, the radius of curvature of the indenter is 5 mm±0.5 mm; the lower indenter spacing is 120 mm, the radius of curvature of the indenter is 3 mm±0.5 mm. The fixture dimensions for the sample of Φ30 mm×180 mm are as follows: the upper indenter spacing is 50 mm, the radius of curvature of the indenter is 5 mm±0.5 mm; the lower indenter spacing is 150 mm, the radius of curvature of the indenter is 3 mm±0.5 mm. The fixture dimensions for other samples are as follows: the spacing between the upper indenters is at least 2 times the sample height (diameter for cylinders), and the spacing between the lower indenters is 3 times the spacing between the upper indenters and not less than 40 mm; the length of the sample end extending out of the fixture is at least the sample height; the indenter diameter is 1/20 ~ 1/10 times the spacing between the lower indenters, and the accuracy is ±0.5 mm. ......


GB/T 3074.1-2008 ICS 29.050 Q 51 GB National Standard of the People’s Republic of China Replacing GB/T 3074.1-1982 Method for the determination of the flexure strength of graphite electrodes ISSUED ON. MAY 13, 2008 IMPLEMENTED ON. NOVEMBER 1, 2008 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration Committee. Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative references ... 5 3 Principle ... 5 4 Instruments & equipment ... 6 5 Samples ... 7 6 Test procedure ... 7 7 Result calculation ... 7 8 Test report ... 8 Foreword GB/T 3074 "Method for the determination of graphite electrodes" is divided into 5 parts. - Method for the determination of the flexure strength of graphite electrodes; - Method for the determination of the flexure strength of graphite electrodes; - Method for the determination of the oxidation resistance of graphite electrodes; - Method for the determination of the coefficient of thermal expansion of graphite electrodes; - Method for sample preparation for the determination of the coefficient thermal expansion (CTE) of petroleum coke for graphite electrodes. This Part is Part 1 of GB/T 3074. This Part replaces GB/T 3074.1-1982 "Determination of flexural strength of graphite electrodes". Compared with GB/T 3074.1-1982, the main changes of this Part are as follows. - ADD articles of scope, normative references, and principle; - ADD measurement requirements for electrodes with specifications of above Φ500 mm; - DELETE article of definition; - The flexural strength unit in calculation formula is changed to MPa. This Part was proposed by China Iron and Steel Association. This Part is under the jurisdiction of Metallurgical Industry Information Standards Institute. Drafting organization of this Part. Sinosteel Jilin Carbon Co., Ltd., and Metallurgical Industry Information Standard Institute. The main drafters of this Part. Zhu Lijuan, Kang Jian, and Sun Wei. This Part was first released in 1982. Method for the determination of the flexure strength of graphite electrodes 1 Scope This Part specifies the measurement principle, instruments & equipment, samples, test procedure, and result calculation for flexure strength of graphite electrodes. This Part applies to the measurement of graphite electrodes’ flexure strength at room temperature. 2 Normative references The following documents contain provisions which, through reference in this Standard, become provisions of this Standard. For dated references, their subsequent amendments (excluding corrections) or revisions do not apply to this Standard. However, the parties who enter into agreement based on this Standard are encouraged to investigate whether the latest versions of these documents are applicable. For undated reference documents, the latest versions apply to this Standard. GB/T 1427 Sample method of carbon material GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values 3 Principle Flexure strength is a measure of the material that can withstand the maximum load of the external forces bent. Its value is the normal stress on cross section, when the sample is bent and fractured. millimeter, mm. d – Sample’s diameter, in unit of millimeter, mm. Calculation result shall retain 1 decimal digit. The value shall be rounded according to the provisions of GB/T 8170. 8 Test report The test report shall include the following content. a) Commissioned organization; b) Sample name; c) Sample identity; d) Test result; e) Test organization; f) Test personnel; g) Test date. ......

Similar standards: GB/T 3074.2-2024  GB/T 3074.4-2016  
Similar PDFs (Auto-delivered in 9 seconds): GB/T 3074.1-2021  GB/T 1431-2019  GB/T 1427-2016  GB/T 8721-2019