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GB/T 5242-2017: Inspection rules and test methods of cemented carbide products
Status: Valid GB/T 5242: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5242-2017 | English | 119 |
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3 days [Need to translate]
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Inspection rules and test methods of cemented carbide products
| Valid |
GB/T 5242-2017
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| GB/T 5242-2006 | English | 239 |
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3 days [Need to translate]
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Check rules and test methods of cemented carbide products
| Obsolete |
GB/T 5242-2006
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| GB/T 5242-1985 | English | 199 |
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2 days [Need to translate]
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Check rules and test methods of cemented carbide products
| Obsolete |
GB/T 5242-1985
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PDF similar to GB/T 5242-2017
Basic data | Standard ID | GB/T 5242-2017 (GB/T5242-2017) | | Description (Translated English) | Inspection rules and test methods of cemented carbide products | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H16 | | Classification of International Standard | 77.160 | | Word Count Estimation | 6,682 | | Date of Issue | 2017-10-14 | | Date of Implementation | 2018-05-01 | | 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 | GB/T 5242-2017: Inspection rules and test methods of cemented carbide products---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Inspection rules and test methods of cemented carbide products
ICS 77.160
H16
National Standards of People's Republic of China
Replacing GB/T 5242-2006
Carbide products inspection rules and test methods
2017-10-14 Published
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 5242-2006 "Carbide products inspection rules and test methods."
This standard compared with GB/T 5242-2006, the main changes are as follows.
--- Added some normative references;
--- Test items were adjusted. Added cobalt magnetic, chemical composition, thermal diffusivity, elastic modulus, fall inspection (or beat test), etc.
Test items, delete the cross-sectional tissue test items;
--- Removed Chapter 3 "Terms and definitions";
--- Removed 4.1.2 "test classification" and 4.4 "test results to determine" content;
--- Removed Chapter 5 "Acceptance" content;
--- Increased normative appendix A.
This standard is proposed by China Nonferrous Metals Industry Association.
This standard by the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized.
This standard is mainly drafted by Zigong Cemented Carbide Co., Ltd., Chongyi Zhangyuan Tungsten Co., Ltd., Shenzhen Note into Technology
Co., Ltd., Xiamen Golden Egret Special Alloy Co., Ltd.
The main drafters of this standard. Cao Wanli, Luo Xiaojun, Jian Yu Mei, Li Siyuan, Xu Xianping, Zhao Guoming, Zhang Shouquan, Sun Xiaoyu.
This standard replaces the standards previously issued as.
--- GB/T 5242-1985, GB/T 5242-2006.
Carbide products inspection rules and test methods
1 Scope
This standard specifies the test items carbide inspection, group approval rules, sampling rules and test methods.
This standard applies to sintered cemented carbide products chemical composition, physical and mechanical properties, organizational structure, shape size, appearance and quality inspection
Experience and test.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 1817 cemented carbides at room temperature impact toughness test method
GB/T 3488 (all parts) Carbide microstructure metallographic determination
GB/T 3489 Cemented Carbide Porosity and Metallographic Determination of Carbon
GB/T 3848 Carbide Coercive (magnetic) force measurement method
GB/T 3849 (all parts) Carbide Rockwell hardness test (A scale)
GB/T 3850 dense sintered metal materials and determination of density of cemented carbide
GB/T 3851 Hardness - Determination of transverse rupture strength
GB/T 4324.25 Methods for chemical analysis of tungsten - Part 25. Determination of oxygen content Pulsed heating Inert gas fusion - infrared absorption method
GB/T 5124 (all parts) Carbide chemical analysis methods
GB/T 5166 Sintered metal materials and cemented carbide elastic modulus determination
GB/T 7997 Carbide Vickers hardness test method
GB/T 11108 Determination of thermal diffusivity of cemented carbide
GB/T 20255 (All parts) Carbide chemical analysis methods
GB/T 23369 Carbide magnetic saturation (MS) Determination of the standard test methods
GB/T 26050 cemented carbide X - ray fluorescence determination of metal elements content melting method
3 test rules
3.1 inspection items
3.1.1 chemical composition
Chemical composition test items are the main metal content, total carbon, oxygen content and so on.
3.1.2 Physical and mechanical properties
Physical and mechanical properties test items are mainly density, Rockwell hardness (or Vickers hardness), transverse rupture strength (bending strength), if necessary,
Coercive (magnetic) force, cobalt magnetic (or magnetic saturation), cutting performance, drilling performance, impact toughness, thermal diffusivity, elastic modulus, drop test
Beat test) and other items of inspection.
3.1.3 metallographic structure
Metallographic structure inspection projects are mainly alloy porosity, non-co-carbon, microstructure and other projects.
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