Standard Historical Last Updated: Nov 16, 2015 Track Document
ASTM C1025-91(2010)e1

Standard Test Method for Modulus of Rupture in Bending of Electrode Graphite

Standard Test Method for Modulus of Rupture in Bending of Electrode Graphite C1025-91R10E01 ASTM|C1025-91R10E01|en-US Standard Test Method for Modulus of Rupture in Bending of Electrode Graphite Standard new BOS Vol. 05.05 Committee D02
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Significance and Use

This test method provides a means for determining the modulus of rupture of a square cross section graphite specimen machined from the electrode core sample obtained according to Practice C783, with a minimum core diameter of 57 mm. This test method is recommended for quality control or quality assurance purposes, but should not be relied upon to compare materials of radically different particle sizes or orientational characteristics. For these reasons as well as those discussed in 4.2 an absolute value of flexural strength may not be obtained.

Specimen SizeThe maximum particle size and maximum pore size vary greatly for manufactured graphite electrodes, generally increasing with electrode diameter. The test is on a rather short stubby beam, therefore the shear stress is not insignificant compared to the flexural stress, and the test results may not agree when a different ratio or specimen size is used.

Scope

1.1 This test method covers determination of the modulus of rupture in bending of specimens cut from graphite electrodes using a simple square cross section beam in four-point loading at room temperature.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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.

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Details
Book of Standards Volume: 05.05
Developed by Subcommittee: D02.F0
Pages: 3
DOI: 10.1520/C1025-91R10E01
ICS Code: 71.100.99