Product description:

Graphite electrodes are mainly made from petroleum coke and needle coke as raw materials, with coal tar pitch as the binder. They are produced through calcination, batching, kneading, pressing, baking, graphitization and machining. They are conductors that release electrical energy in the form of electric arcs in electric arc furnaces to heat and melt the charge.

item			UHP electrode		HP electrode		RP electrode
			≤φ400	≥φ450	≤φ400	≥φ450	≤φ400	≥φ450
specific resistance	electrode	μΩ·m	4.2-5.8	4.2-5.8	5.0-6.2	5.3-6.5	7.0-8.8	7.5-9.5
	nipples		3.0-4.0		3.4-4.4		4.2-5.4
Flexural Strength	electrode	Mpa	10.5-15.5	10.0-15	10.5-15.5	10.0-15	7.5-9.5	6.5-8.5
	nipples		23-32		21-26		17-22
Elastic modulus	electrode	Gpa	9.0-13		9.0-12.0		6.5-9.0
	nipples		15-21		1.3-1.6		10-16
ash content	electrode	%	0.3		0.3		0.4
	nipples		0.3		0.3		0.3
real density	electrode	G/cm³	1.66-1.74		1.65-1.73		1.54-1.62
	nipples		1.80-1.86		1.75-1.80		1.73-1.78
Thermal expansion coefficient	electrode	10-6/℃	1.6-1.9		1.6-1.9		2.0-2.4
	nipples		1.77-1.82		1.77-1.82		1.7-2.0