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GB/T 8358-2023 English PDF (GB/T 8358-2014, GB/T 8358-2006)

GB/T 8358-2023_English: PDF (GB/T8358-2023)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 8358-2023English200 Add to Cart 0--9 seconds. Auto-delivery Steel wire ropes -- Determination of breaking force Valid GB/T 8358-2023
GB/T 8358-2014English70 Add to Cart 0--9 seconds. Auto-delivery Steel wire ropes -- Determination of measured breaking force Obsolete GB/T 8358-2014
GB/T 8358-2006English359 Add to Cart 3 days [Need to translate] Breaking rope tensile test method Obsolete GB/T 8358-2006
GB/T 8358-1987English199 Add to Cart 2 days [Need to translate] Method of breaking tensile test for steel wire rope Obsolete GB/T 8358-1987


BASIC DATA
Standard ID GB/T 8358-2023 (GB/T8358-2023)
Description (Translated English) Steel wire ropes -- Determination of breaking force
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H22
Classification of International Standard 77.040.10
Word Count Estimation 11,138
Date of Issue 2023-05-23
Date of Implementation 2023-12-01
Older Standard (superseded by this standard) GB/T 8358-2014
Drafting Organization Sinosteel Zhengzhou Metal Products Research Institute Co., Ltd. (National Metal Products Quality Inspection and Testing Center), Shanghai Shenli Testing Machine Co., Ltd., Kunshan East Coast Ocean Engineering Co., Ltd., Shanghai Customs Industrial Products and Raw Materials Testing Technology Center, Nantong Products Quality Supervision and Inspection Institute (National Steel Wire Rope Product Quality Inspection and Testing Center), Juli Rigging Co., Ltd., Metallurgical Industry Information Standard 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, National Standardization Management Committee

BASIC DATA
Standard ID GB/T 8358-2014 (GB/T8358-2014)
Description (Translated English) Steel wire ropes. Determination of measured breaking force
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H22
Classification of International Standard 77.040.10
Word Count Estimation 7,766
Date of Issue 2014/6/9
Date of Implementation 2015/1/1
Older Standard (superseded by this standard) GB/T 8358-2006
Quoted Standard GB/T 8706; GB/T 16825.1
Adopted Standard ISO 3108-1974, NEQ
Drafting Organization National Metal Products Quality Supervision and Inspection Center
Administrative Organization National Steel Standardization Technical Committee
Regulation (derived from) National Standards Bulletin No. 11 of 2014
Proposing organization China Iron and Steel Association
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This Standard specifies the actual rope breaking force measurement method terminology and definitions, test principle, specimen preparation, test equipment, test procedures, test reports. This Standard applies to all kinds of wire rope products, the actua

BASIC DATA
Standard ID GB/T 8358-2006 (GB/T8358-2006)
Description (Translated English) Breaking rope tensile test method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H22
Classification of International Standard 77.040.10
Word Count Estimation 9,982
Date of Issue 2006-03-01
Date of Implementation 2006-09-01
Older Standard (superseded by this standard) GB/T 8358-1987
Quoted Standard GB/T 6946; GB/T 3191; GB/T 16825.1
Adopted Standard ISO 3108-1974, NEQ
Drafting Organization Zhengzhou Institute of Metal Products
Administrative Organization National Steel Standardization Technical Committee
Regulation (derived from) China National Standard Approval Announcement 2006 No.3 (Total No.90); National Standard Announcement 2014 No.11
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 rope breaking tensile test method terminology and definitions, specimen preparation, , test principle test equipment, test procedures and test reports and other content. This standard applies to all types of wire rope, strand of products-Determination of tensile breaking. As otherwise provided in the relevant product standard, according to their regulations.


GB/T 8358-2023 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.040.10 CCS H 22 Replacing GB/T 8358-2014 Steel wire ropes - Determination of breaking force (ISO 3108:2017, Steel wire ropes - Test method - Determination of measured breaking force, MOD) ISSUED ON: MAY 23, 2023 IMPLEMENTED ON: DECEMBER 01, 2023 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 ... 6 4 Principle ... 8 5 Specimen preparation ... 8 6 Test equipment ... 11 7 Test procedures ... 11 8 Test report ... 12 Annex A (informative) Method of grouting material pouring ... 13 Bibliography ... 15 Steel wire ropes - Determination of breaking force 1 Scope This document specifies the principles, specimen preparation, test equipment, test procedures, and test reports for the method to determine the breaking tensile force of steel wire ropes. This document is applicable to the determination of breaking force of various wire rope products. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 8706, Steel wire ropes -- Vocabulary, designation and classification (GB/T 8706-2017, ISO 17893:2004, MOD) GB/T 16825.1, Metallic materials -- Calibration and verification of static uniaxial testing machines -- Part 1: Tension/compression testing machines -- Calibration and verification of the force-measuring system (GB/T 16825.1-2008, ISO 7500-1:2004, IDT) GB/T 30588, Terminations for steel wire ropes -- Molten metal socketing YB/T 4615, Steel rope end resin socket JJG 139, Verification regulation of Tension, Compression and Universal Testing Machines JJG 475, Verification Regulation of Electronic Universal Testing Machine JJG 1063, Verification Regulation of Electro-hydraulic Servo Universal Testing Machines 3 Terms and definitions For the purposes of this document, the terms and definitions defined in GB/T 8706 as well as the followings apply. A specimen installation method is to clamp the specimen directly into the appropriate jaws of the tensile testing machine for tensile testing. 3.9 method of wrapping A specimen installation method that is to directly wrap the specimen in the rope groove of the winding test wheel for tensile testing. 4 Principle Apply tensile force to the wire rope specimen. Stretch until the wire rope breaks. Determine the breaking tension of the wire rope, or stretch it to the specified tension value. 5 Specimen preparation 5.1 General requirements 5.1.1 The wire rope specimen can be intercepted by grinding wheel cutting, pressure cutting or shear cutting. The specimen taken shall avoid the molten part at the end of the wire rope. 5.1.2 In order to prevent the wire rope from loosening and the geometric position of the strands and wires from changing, sufficient loosening or clamping length shall be reserved at both ends before intercepting the specimen. Tie firmly with low carbon steel wire. 5.1.3 For unused wire ropes, test specimens shall be taken from the wire ropes that are not damaged during visual inspection. The intercepted wire rope specimen shall be straight. There shall be no bending or damage. 5.1.4 For used wire ropes, test specimens shall be taken from the wire ropes confirmed by the relevant parties. 5.1.5 The minimum effective test section length (that is, the distance between the two chucks) shall comply with the requirements in Table 1. NOTE: For thick-diameter wire ropes, the minimum test section length is generally 6 times the wire rope pitch. 5.1.6 The total length of the specimen is equal to the length of the test section plus the clamping length at both ends of the specimen. 1 - Jaw seat; 2 - Clamping block; 3 - Specimen; 4 - Packing; d - Nominal diameter of wire rope; L - Minimum effective test section length. Figure 2 -- Schematic diagram of specimen using method of direct gripping 5.5 Method of wrapping 5.5.1 The winding test wheel shall be selected to match the diameter of the wire rope. The ratio of the diameter of the winding test wheel to the diameter of the wire rope shall not be less than 16. 5.5.2 The diameter of the rope groove around the test wheel shall be controlled within the range of 1.06 to 1.10 times the nominal diameter of the wire rope. 5.5.3 The method of wrapping is suitable for wire ropes with a diameter not larger than 20 mm. 6 Test equipment 6.1 This test can be performed on any tensile testing machine that meets the requirements of this document. 6.2 The force measuring system of the testing machine shall comply with the requirements of GB/T 16825.1. Calibrate in accordance with JJG 139, JJG 475 or JJG 1063. Its accuracy shall be grade 1 or better. 6.3 The testing machine shall be equipped with safety protection devices to prevent wires from flying out and injuring people during the test. 7 Test procedures 7.1 Unless otherwise specified, the test is generally conducted at room temperature within the range of 10℃~35℃. For tests with strict temperature requirements, the test temperature shall be 23℃±5℃. 7.2 Mount the specimen on the tensile testing machine. Ensure that the axis of the specimen coincides with the axis of the chuck of the testing machine. 7.3 For tensile specimens produced by method of alloy poured socketing or method of resin pouring, when testing with a vertical tensile testing machine, first place the specimen in the upper and lower jaw seats. Let the specimen in the lower jaw seat hang Annex A (informative) Method of grouting material pouring A.1 Cement-based grouting material Cement-based grouting materials are made of raw materials such as cement, aggregates, admixtures and mineral admixtures, which are measured and mixed in proportions in professional chemical plants. Add water or mix the supporting components according to the specified proportion at the place of use. Use it for bolt anchoring, structural reinforcement, prestressed tunnels, etc. The grouting material used shall comply with the requirements of GB/T 50488. A.2 Method of grouting material pouring A.2.1 The mold used for pouring shall be easy to disassemble. The inner surface in contact with the grouting material shall be smooth and clean. A.2.2 The bundling, end breaking, and surface cleaning of the specimens shall comply with the requirements of 5.2.4. A.2.3 Place the cleaned broom head into the mold and adjust it. Pour the mixed grouting material into the mold. Use a thin steel rod to pound continuously to remove the air from the pouring body until it is filled. Then place the poured specimen at room temperature for 3h to 4 h before demoulding. Figure 1 is a schematic diagram of the sample prepared using this method. A.3 Maintenance A.3.1 After demoulding, the specimens are placed in a high-temperature steam curing box for steam curing. The heating rate shall not be greater than 12℃/h. After the temperature is raised to 80°C, the constant temperature (80°C±5°C) is maintained for more than 48 h until the compressive strength of the specimen cured under the same conditions reaches 80 MPa. A.3.2 When pouring the steel wire rope, a grouting material specimen (specimen size: 40 mm × 40 mm × 160 mm) is formed at the same time and maintained under the same conditions as the steel wire rope. After the specimen is cured, the compressive strength test is carried out in accordance with the requirements of GB/T 17671. When the strength meets the requirements, a breaking tensile test of the wire rope is carried out. NOTE 1: Generally, high-strength grouting materials are used to avoid invalid fracture locations affecting the test results. ......


GB/T 8358-2014 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.040.10 H 22 Replacing GB/T 8358-2006 Steel Wire Rope – Determination of Measured Breaking Force (ISO 3108.1974, Steel Wire Rope for General Purposes – Determination of Actual Breaking Load, NEQ) ISSUED ON. JUNE 9, 2014 IMPLEMENTED ON. JANUARY 1, 2015 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of Contents Foreword ... 3 1 Scope ... 5 2 Normative References ... 5 3 Terms and Definitions ... 5 4 Principle ... 6 5 Specimen preparation ... 6 6 Test Equipment ... 9 7 Test Procedures ... 9 8 Test Report ... 10 Foreword This Standard was drafted as per the rules specified in GB/T 1.1-2009. This Standard replaced GB/T 8358-2006 Method of Breaking Tensile Test for Steel Wire Ropes; compared with GB/T 8358-2006, this Standard makes significant changes and supplements in the aspect of the following technical contents. --- Modify the standard name; --- Modify the normative references; --- Delete the terms and definitions on minimum breaking force and measured breaking force; --- Add the requirement for minimum test length of single-strand steel wire rope; --- Increase the requirement for minimum test length ≥3000mm of the steel wire rope with nominal diameter d>60mm; --- Refine the specimen preparation by method of alloy poured socketing and method of ferrule pressing; --- Increase the clause on the specimen preparation by method of resign pouring; --- Delete the clause on the specimen preparation by method of direct gripping, and method of wrapping. --- Adjust the provision on judging whether the test results are effective from “breaking within 1d (30mm) away from grip holder” to “breaking within the less one between 6d away from grip holder and 50mm”; --- Delete Appendix A, Appendix B, Appendix C. This Standard adopts the re-drafting method to prepare in reference to ISO 3108. 1974 Steel Wire Rope for General Purposes – Determination of Actual Breaking Load; this Standard is not equivalent to ISO 3108.1974 in the aspect of consistency degree. 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. National Quality Supervision and Inspection Center for Metal Products, Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai Zhengshen Metal Products Co., Ltd., China Metallurgical Information and Standardization Institute, Guizhou Wire Rope Co., Ltd., Juli Sling Co., Ltd., and Wuxi Steel Wire Rope – Determination of Measured Breaking Force 1 Scope This Standard specifies the terms and definitions, test principles, specimen preparation, test equipment, test procedures, test report and the like for determination of measured breaking force of steel wire rope. This Standard is applicable to the determination of measured breaking force of various steel wire ropes. Method of alloy poured socketing is suitable for the steel wire rope with diameter greater than and equal to 6mm or 0.5mm; method of resign pouring and method of ferrule pressing are suitable for all types of steel wire rope; method of direct gripping is suitable for the single-strand steel wire rope, it is also suitable for other structures of steel wire rope; the method of wrapping is suitable for the steel wire rope with diameter no greater than 20mm. 2 Normative References 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 8706 Steel Wire Rope – Vocabulary, Designation and Classification (GB/T 8706-2006, ISO 17893.2004, IDT) GB/T 16825.1 Verification of Static Uniaxial Test Machines – Part 1. Tension/Compression Testing Machines – Verification and Calibration of the Force-Measuring System (GB/T 16825.1-2008, ISO 7500-1.2004, IDT) 3 Terms and Definitions The following terms and definitions stipulated in GB/T 8706 are applicable to this document. 3.1 Force at first wire breaking The tensile strength of the first wire breaking during the tensile test of the steel wire rope. specimen surface. 6 Test Equipment This test can be carried out on any tensile tester that meets the requirements of this Standard. The tester force-measuring system shall be calibrated as per GB/T 16825.1; its accuracy shall be Class-1 or above. 7 Test Procedures 7.1 Unless otherwise is specified, the test shall be carried out at the room temperature of 10°C~35°C. For the test with strict requirements for the temperature, the test temperature shall be 23°C±5°C. 7.2 Install the specimen onto the tester, and ensure the specimen axis coincides with the axis of the tester grip holder. 7.3 For the tensile specimen by pouring method, when using vertical tensile tester to test, firstly place the specimen into the upper and lower jaw seats, make the specimen suspend into the jaw seats; return the tester to zero, then perform the tensile test. 7.4 For the method of ferrule pressing, directly grip the pressed ferrule specimen into the jaw; then the tensile test can be performed. 7.5 For the method of direct gripping, use appropriate fixture; in necessary, sandwich an aluminum foil stained with emery between specimen and fixture, so that avoid the fixture damage the specimen. 7.6 For the method of wrapping, firstly fix one end of specimen onto the test wheel; then wrap the specimen on the test wheel; stretch the specimen; finally fix the other end of specimen, then the tensile test can be performed. 7.7 Smoothly loading during the test period. When exerting the test force, if it is no greater than 80% minimum breaking force of steel wire rope, the test force can be exerted at a fast speed; if the test force is greater than 80% minimum breaking force of steel wire rope, the test force shall be exerted at a slow speed; the force increasing speed shall not exceed 0.5% minimum breaking force per second. 7.8 Take effective measures during the test period, prevent the rotation of steel wire rope specimen, and avoid the influence on the accuracy of the test results. 7.9 If the steel wire rope specimen is broken within 6d or 50mm (take the less ......

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