High power graphite electrode

Used for high power electric arc furnace Current density: 18A/cm2 -25 A/cm2 Made from high quality petrolium coke

Introduction

The graphite electrode is made of highquality petroleum coke or imported needle coke. It is widely used as electrode in electric ark furnace for the producing of alloy steel,other non-ferrous metals or nonmetallic materials.The Diameters range is 50-500mm and the length range is 1000-2000mm.

Advantages

-low electrical resistance

-excellent resistance to oxidation, thermal and mechanical shock

-high electric and thermal conductivity

-high mechanical strength

-fine machining accuracy

Technical properties

  

Technical properties		200-300	350-400	450-500
Resistance ≤(μΩ.m)	Electrode	6.2-6.5	6.5-6.8	6.5-7.0
	Nipple	5.5	5.5	5.5
Rupture strength ≥(Mpa)	Electrode	11	10.5	10.5
	Nipple	15	15	15
Elastic modulus ≥(Gpa)	Electrode	11	11	11
	Nipple	14	14	14
Ash ≤(%)	Electrode	0.3	0.3	0.3
	Nipple	0.2	0.2	0.2
Bulk density ≥(g/cm3)	Electrode	1.65	1.65	1.65
	Nipple	1.72-1.78	1.72-1.78	1.72-1.78
Thermal expansion ≤(x10-6/°C CTE)	Electrode	1.8-2.2	1.8-2.2	1.8-2.2
	Nipple	1.4-1.8	1.4-1.8	1.4-1.8

High power graphite electrode