ASTM-D6745 Standard Test Method for Linear Thermal Expansion of Electrode Carbons

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Standard Test Method for Linear Thermal Expansion of Electrode Carbons




1.1 This test method covers the determination of the coefficient of linear thermal expansion (CTE) for carbon anodes and cathodes used in the aluminum industry, in baked form, by use of a vitreous silica dilatometer.

1.2 The applicable temperature range for this test method for research purposes is ambient to 1000 °C. The recommended maximum use temperature for product evaluation is 500 °C.

1.3 This test method and procedure is based on Test Method E228, which is a generic all-encompassing method. Specifics dictated by the nature of electrode carbons and the purposes for which they are used are addressed by this procedure.

1.4 Electrode carbons in the baked form will only exhibit primarily reversible dimensional changes when heated.

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

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.


aluminum industry; anode; carbon; cathode; coefficient of thermal expansion (CTE); thermal expansion;; ICS Number Code 19.060 (Mechanical testing)

To find similar documents by ASTM Volume:

05.03 (Petroleum Products and Lubricants (III): D6138 - D6971)

To find similar documents by classification:

19.060 (Mechanical testing Including testing equipment Mechanical testing of metals, see 77.040.10)

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Document Number


Revision Level

2011 R15 EDITION



Modification Type


Publication Date

Dec. 1, 2015

Document Type

Test Method

Page Count

6 pages

Committee Number