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    ASTM E18-12

    Standard Test Methods for Rockwell Hardness of Metallic Materials
    • 발행일 : 2012-12-01
    • 발행기관 : ASTM
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상세정보

분야 03.01 : 금속-기계적 시험;가열 및 저온시험;금속 조직학
적용범위

1.1 These test methods cover the determination of the Rockwell hardness and the Rockwell superficial hardness of metallic materials by the Rockwell indentation hardness principle. This standard provides the requirements for Rockwell hardness machines and the procedures for performing Rockwell hardness tests.

1.2 This standard includes additional requirements in annexes:

Verification of Rockwell Hardness Testing Machines

Annex A1

Rockwell Hardness Standardizing Machines

Annex A2

Standardization of Rockwell Indenters

Annex A3

Standardization of Rockwell Hardness Test Blocks

Annex A4

Guidelines for Determining the Minimum Thickness of a
 Test Piece

Annex A5

Hardness Value Corrections When Testing on Convex
 Cylindrical Surfaces

Annex A6


1.3 This standard includes nonmandatory information in appendixes which relates to the Rockwell hardness test.

List of ASTM Standards Giving Hardness Values Corresponding
 to Tensile Strength

Appendix X1

Examples of Procedures for Determining Rockwell
 Hardness Uncertainty

Appendix X2


1.4 Units—At the time the Rockwell hardness test was developed, the force levels were specified in units of kilograms-force (kgf) and the indenter ball diameters were specified in units of inches (in.). This standard specifies the units of force and length in the International System of Units (SI); that is, force in Newtons (N) and length in millimeters (mm). However, because of the historical precedent and continued common usage, force values in kgf units and ball diameters in inch units are provided for information and much of the discussion in this standard refers to these units.

1.5 The test principles, testing procedures, and verification procedures are essentially identical for both the Rockwell and Rockwell superficial hardness tests. The significant differences between the two tests are that the test forces are smaller for the Rockwell superficial test than for the Rockwell test. The same type and size indenters may be used for either test, depending on the scale being employed. Accordingly, throughout this standard, the term Rockwell will imply both Rockwell and Rockwell superficial unless stated otherwise.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
국제분류(ICS)코드 77.040.10 : 금속의 기계적 시험
페이지수 37
Edition 12

이력정보

No. 표준번호 표준명 발행일 상태
1 ASTM E18-24상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2024-04-01 표준
2 ASTM E18-24 REDLINE상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2024-04-01 표준
3 ASTM E18-22 REDLINE상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2022-05-01 구판
4 ASTM E18-22상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2022-05-01 구판
5 ASTM E18-20 REDLINE상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2020-02-01 구판
6 ASTM E18-20상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2020-02-01 구판
7 ASTM E18-19상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2019-01-01 구판
8 ASTM E18-19 REDLINE상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2019-01-01 구판
9 ASTM E18-18a상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2018-10-01 구판
10 ASTM E18-18a REDLINE상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2018-10-01 구판
11 ASTM E18-18상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2018-07-01 구판
12 ASTM E18-17e1상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2017-07-01 구판
13 ASTM E18-17상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2017-07-01 구판
14 ASTM E18-16상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2016-05-01 구판
15 ASTM E18-15상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2015-02-01 구판
16 ASTM E18-14a상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2014-10-01 구판
17 ASTM E18-14상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2014-01-01 구판
18 ASTM E18-12상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2012-12-01 구판
19 ASTM E18-11상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2011-11-01 구판
20 ASTM E18-08b상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2008-12-01 구판
21 ASTM E18-08a상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2008-05-15 구판
22 ASTM E18-08상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2008-01-15 구판
23 ASTM E18-07상세보기 Standard Test Methods for Rockwell Hardness of Metallic Materials 2007-04-01 구판
24 ASTM E18-05e1상세보기 Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials 2005-04-01 구판
25 ASTM E18-05상세보기 Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials 2005-02-01 구판
26 ASTM E18-03e1상세보기 Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials 2003-06-10 구판
27 ASTM E18-03상세보기 Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials 2003-06-10 구판
28 ASTM E18-00상세보기 Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials 2002-01-10 구판
29 ASTM E18-02상세보기 Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials 2002-01-10 구판

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