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GB/T 2075: Historical versions
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB/T 2075-2025 | English | 194 |
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Classification and application of hard cutting materials for metal removal with defined cutting edges - Designation of the main groups and groups of application
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| GB/T 2075-2007 | English | 134 |
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Classification and application of hard cutting materials for m metal removal with defined cutting edges -- Designation of the main groups and groups of application
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| GB/T 2075-1998 | English | 599 |
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Application of hard cutting materials for machining by chip removal--Designation of the main groups of chip removal and groups of application
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| GB/T 2075-1987 | English | RFQ |
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Application of carbides for machining by chip removal-Designation of the main groups of chip removal and groups of application
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Basic data
| Standard ID | GB/T 2075-2025 (GB/T2075-2025) |
| Description (Translated English) | Classification and application of hard cutting materials for metal removal with defined cutting edges - Designation of the main groups and groups of application |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J41 |
| Classification of International Standard | 25.100.01 |
| Word Count Estimation | 10,126 |
| Date of Issue | 2025-10-31 |
| Date of Implementation | 2026-05-01 |
| Older Standard (superseded by this standard) | GB/T 2075-2007 |
| Issuing agency(ies) | State Administration for Market Regulation and Standardization Administration of China |
GB/T 2075-2025: Classification and application of hard cutting materials for metal removal with defined cutting edges - Designation of the main groups and groups of application
---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.
ICS 25.100.01
CCSJ41
National Standards of the People's Republic of China
Replaces GB/T 2075-2007
Classification and Applications of Hard Cutting Materials for Machining
Classification codes for major groups and application groups
(ISO 513.2012, IDT)
Published on 2025-10-31
Implemented on May 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4 Code 1
5 categories 3
6 Important Notes 4
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document supersedes GB/T 2075-2007 "Classification and Applications of Hard Cutting Materials for Cutting Machines - Major Groups and Subgroups".
Compared with GB/T 2075-2007, the main technical changes in the "No." are as follows, apart from structural adjustments and editorial modifications.
a) The material group represented by the letter symbol "DD" has been added (see Table 3);
b) The "polycrystalline diamond with binder" material group and its code have been added (see Table 3);
c) An "Application Scope Table" has been added (see Table 6);
d) Added explanations regarding discrepancies between the designation in the application group and the cutting material grade (see Chapter 6).
This document adopts ISO 513.2012 "Classification and application of hard cutting materials for machining – Major groups and subgroups" for classification.
Code name.
This document adds two chapters. "Normative References" and "Terms and Definitions".
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee on Standardization of Cutting Tools (SAC/TC91).
This document was drafted by. Chengdu Tool Research Institute Co., Ltd., Changzhou Zhigang Intelligent Equipment Co., Ltd., and Jiangyin Seter Precision Tools Co., Ltd.
The company, Luoyang Xincheng Precision Machinery Co., Ltd., Harbin Hanlin Technology Development Co., Ltd., and Ningbo Sanhan Alloy Materials Co., Ltd.
The main drafters of this document are. Xu Gang, Zou Chunying, Zhu Yuan, Zhang Shaobo, Chen Liangyong, and Luo Liang.
This document was first published in 1987, revised for the first time in.1998, revised for the second time in.2007, and this is the third revision.
Classification and Applications of Hard Cutting Materials for Machining
Classification codes for major groups and application groups
1 Scope
This document defines hard-cutting materials, including cemented carbide, ceramics, diamond, and boron nitride, for machining by removing metal.
Classification and uses.
This document applies to hard-cutting materials used in cutting tools, but not to other tools (such as mining and other impact tools, wire drawing dies, etc.).
Hard materials are used for metal plastic deformation tools, comparator probes, etc.
2 Normative references
This document has no normative references.
3 Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4 Code Name
The designation for the hard-cutting materials application group includes the letter symbols given in Tables 1 to 4, followed by a hyphen "-" and the designation specified in Chapter 5.
The code names for the transit group and the application group.
Table 1 Hard alloy
Letter symbol material group
HW is an uncoated cemented carbide primarily containing tungsten carbide (WC), with a grain size ≥1μm.
HF is an uncoated cemented carbide primarily containing tungsten carbide (WC), with a particle size < 1 μm.
HTa is an uncoated hard alloy primarily containing titanium carbide (TiC) or titanium nitride (TiN), or both.
The above-mentioned cemented carbide HC has been coated.
HT-type cemented carbide is also known as "cermet".
Table 2 Ceramics
Letter symbol material group
CA ceramics mainly containing alumina (Al2O3).
CR mainly consists of alumina (Al2O3) reinforced ceramics.
CM is a mixed ceramic mainly based on alumina (Al2O3) but containing non-oxide components.
CN mainly contains silicon nitride (Si3N4) nitride ceramics
The aforementioned ceramics were coated.
...
