ASTM-B294 2010

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B294-10 Standard Test Method for Hardness Testing of Cemented Carbides

Published By	Publication Date	Number of Pages
ASTM	2010	8

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Categories: 77.040.10 - Mechanical testing of metals, ASTM

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Description

1.1 This test method covers the hardness testing of cemented carbides by use of a Rockwell hardness tester performing tests in the Rockwell HRA scale (regular scale, diamond indenter, 10 kgf (98.07 N) preliminary test force, and 60 kgf (588.4 N) load) in the range of Rockwell 80 HRA and above. Also covered are the procedures for the testing and selection of diamond indenters, the management and traceability of the four levels of standardized test blocks, and the making and calibration of Primary, Secondary, and Working standardized test blocks.

1.2 The Rockwell hardness tester is a convenient and reliable means of measuring the hardness of cemented carbides. A hardness value is obtained easily, but it is subject to considerable error unless certain precautions are observed.

1.3 The latest version of Test Methods E18 shall be followed except where otherwise indicated in this test method.

1.4 The values stated in SI units are to be regarded as standard except that force and length values associated with the Rockwell hardness testers will comply with E18 with force values specified as N (kgf) and indenter length values specified as mm.

1.5 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Significance and Use Apparatus
2	Test Specimens Procedure
3	Report Precision and Bias Keywords A1. PREPARATION, CALIBRATION, AND CONTROL OF STANDARDIZED TEST BLOCKS USED IN THE PERFORMANCE OF THE PROCEDURES OF THIS TEST METHOD A1.1 Scope and Field of Application A1.2 Hierarchy and Availability of Standardized Test Blocks
4	A1.3 Manufacture and Calibration of Standardized Test Blocks A1.4 Primary Standardized Test Block Sets A1.5 Secondary Standardized Test Blocks
5	A1.6 Working Standardized Test Blocks
6	A1.7 Test Report A2. INDENTERS FOR PERFORMING ROCKWELL HRA SCALE HARDNESS TESTS ON CEMENTED CARBIDES A2.1 Scope A2.2 Indenter Requirements A2.3 Indenter Performance Verification A2.4 Marking A2.5 Report
7	A3. TESTER VERIFICATION REQUIREMEMTS A3.1 Scope A3.2 Schedule of Verifications A3.3 Direct Verification A3.4 Indirect Verification
8	A3.5 Report

Additional information

Standard Title	B294-10 Standard Test Method for Hardness Testing of Cemented Carbides
Published Code	ASTM
Publication Date	2010
Pages Count	8
ICS Codes	77.040.10 - Mechanical testing of metals

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ASTM-B294 2010

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