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See Chinese contents: GB/T 3074.4-2016 GB/T 3074.4-2016: Method for the determination of the coefficient of thermal expansion of graphite electrodes
This Part of GB/T 3074 specifies determination principles, instruments and equipment, specimen preparation, test steps and results calculation for the coefficient of thermal expansion of graphite electrodes. This Part is applicable to the coefficient of other solid carbon materials of which the ordinary power, high power, ultra-high-power graphite electrode and total expansion at 600-degree does not exceed 1mm, of which the temperature range is room temperature ~ 600-degree. If it needs to test the coefficient of thermal expansion in other temperature ranges, it may refer to this method.
