GB/T 3074.4-2003: Method for the determination of the coefficient of thermal expansion of graphite electrodes

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Scope

This Part specifies the principle, apparatus, specimen preparation, test procedures
and calculation method for the determination of the coefficient of thermal expansion of
graphite electrodes.
This Part is applicable to the average coefficient of linear thermal expansion of
graphite electrode with ordinary power, high-power and ultra-high-power; and other
solid carbon materials with total expansion amount not exceeding 1mm at 600°C; the
temperature range is room temperature ~ 600°C.

Basic Data

Standard ID	GB/T 3074.4-2003 (GB/T3074.4-2003)
Description (Translated English)	Method for the determination of the coefficient of thermal expansion of graphite electrodes
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	Q51
Classification of International Standard	29.040
Word Count Estimation	4,474
Date of Issue	2003-09-12
Date of Implementation	2004-04-01
Older Standard (superseded by this standard)	GB/T 3074.4-1982
Regulation (derived from)	Chinese national standard approved by the announcement in 2003 No. 12 (No. 60 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary	This standard specifies: the thermal expansion coefficient of graphite electrodes Determination of principles, equipment, specimen preparation, test procedures and calculation methods. This standard applies to: general power, high-power, ultra-high-power graphite electrodes and the total amount of expansion at 60, When �� not exceed, mm-other solid carbonaceous material, temperature range of room temperature ~ 60, �� average linear expansion coefficient.