Graphite electrode with 4TPI Truncated Cone Nipples

The graphite electrode is mainly made of petroleum coke and needle coke as raw materials and coal tar pitch as binder through calcination, batching, kneading, pressing, roasting, graphitization and machining.

INQUIRY

Description

Graphite electrode is mainly made of petroleum coke and needle coke as raw materials and coal tar pitch as binder through
calcination, batching, kneading, pressing, baking(roasting), graphitization and machining.

Graphite electrode is a conductor which releases electric energy in the form of electric arc to heat and melt the furnace charge in electric arc furnace.
According to its quality index, graphite electrode can be divided into Regular power electrode, high power electrode and ultra-high power electrode.

Item	Category	Unit	Diameter（mm）
			75--200		250--350		400--500
			Top grade	First grade	Top grade	First grade	Top Grade	First grade
			A	B	A	B	A	B
Resistivity (≤）	body	MΩ.m	8.0	9.0	8.0	9.0	8.0	9.0
	joint		7.5		7.5		7.5
Flexural strength（≥）	body	Mpa	10.0		10.0		8.0
	joint		15.0		15.0		15.0
Elastic modulus（≤）	body	Gpa	12.0		12.0		12.5
	joint		14.0		14.0		14.0
Bulk density（≥）	body	G/cm³	1.58		1.58		1.58
	joint		1.68		1.68		1.68
Thermal expansion coefficient（≤）（100-600）CET	body	×10^-6/℃	2.7		2.7		2.7
	joint		2.5		2.5		2.5
Ash value（≤）			0.3		0.3		0.3
Note: The ash content and the coefficient of thermal expansion are reference numbers.