GB/T 4340.4: Evolution and historical versions
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Metallic materials - Vickers hardness test - Part 4: Tables of hardness values
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Metallic materials -- Vickers hardness test -- Part 4: Tables of hardness values
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Basic data | Standard ID | GB/T 4340.4-2022 (GB/T4340.4-2022) | | Description (Translated English) | Metallic materials - Vickers hardness test - Part 4: Tables of hardness values | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H22 | | Word Count Estimation | 143,168 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 4340.4-2022: Metallic materials - Vickers hardness test - Part 4: Tables of hardness values---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.
Metallic materials -- Vickers hardness test -- Part 4.Tables of hardness values
ICS 77.040.10
CCSH22
National Standards of People's Republic of China
Replacing GB/T 4340.4-2009
Vickers hardness test of metal materials
Part 4.Table of hardness values
(ISO 6507-4.2018, IDT)
Published on 2022-03-09
2022-10-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
Introduction II
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Vickers hardness table 1
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
This document is part 4 of GB/T 4340 "Vickers Hardness Test for Metallic Materials". GB/T 4340 has published the following parts.
--- Part 1.Test methods;
--- Part 2.Inspection and calibration of hardness testers;
--- Part 3.Calibration of standard hardness blocks;
--- Part 4.Table of hardness values.
This document replaces GB/T 4340.4-2009 "Vickers Hardness Test for Metal Materials Part 4.Table of Hardness Values", and
Compared with GB/T 4340.4-2009, in addition to structural adjustment and editorial changes, the main technical changes are as follows.
--- Added the statement of the calculation method of Vickers hardness value (see Chapter 4);
--- Delete the Vickers hardness value with an average indentation diameter greater than 1.400mm (see Table 3 of the.2009 edition).
This document is equivalent to ISO 6507-4.2018 "Vickers Hardness Test for Metal Materials Part 4.Table of Hardness Values".
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Iron and Steel Association.
This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
This document is drafted by. General Iron and Steel Research Institute, Fujian Boiler and Pressure Vessel Inspection Institute, Metallurgical Industry Information Standards Institute, Shougang
Group Co., Ltd., Quanzhou Fengze Donghai Instrument Hardness Block Factory, Beijing Times Zhifeng Technology Co., Ltd., and Gangyan Nake Testing Technology Co., Ltd.
Ltd.
The main drafters of this document. Gao Yifei, Chen Song, Dong Li, Wu Zhaohui, Chen Junxin, Qiu Yu, He Keqin, Hou Huining.
This document was first published in.2009 and this is the first revision.
Introduction
GB/T 4340 "Vickers Hardness Test for Metal Materials" aims to standardize the Vickers hardness test method of metal materials, the inspection and calibration of hardness testers
Standard, standard hardness block calibration and hardness value and so on.
GB/T 4340 consists of four parts.
--- Part 1.Test methods;
--- Part 2.Inspection and calibration of hardness testers;
--- Part 3.Calibration of standard hardness blocks;
--- Part 4.Table of hardness values.
This document provides indentation diagonals below 1.961N, between 1.961N~29.42N and between 49.03N~980.7N
The comparison table of length and corresponding Vickers hardness value is convenient for standard users to consult and use.
Vickers hardness test of metal materials
Part 4.Table of hardness values
1 Scope
The table of hardness values given in this document applies to Vickers hardness testing in accordance with ISO 6507-1.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
ISO 6507-1 Vickers hardness test for metallic materials - Part 1.Test methods (Metalicmaterials-Vickershard-
nesstest-Part 1.Testmethod)
Note. GB/T 4340.1-2009 Vickers hardness test of metallic materials Part 1.Test method (ISO 6507-1.2005, MOD)
3 Terms and Definitions
There are no terms and definitions that need to be defined in this document.
4 Vickers hardness table
Table 1, Table 2 and Table 3 give the Vickers hardness value table calculated according to the ISO 6507-1 Vickers hardness formula.
The range < HV0.2 is shown in Table 1; the range HV0.2~HV3 is shown in Table 2; the range HV5~HV100 is shown in Table 3.
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