graphite electrode

Category: Graphite Electrodes >>>
Supplier: Qingdao,Meilikun,Graphite,Products,Factory

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Product Overview

Description

Description:The electrodes carry the electricity that heats electric arc furnaces, the vast majority steel furnaces. They are made from petroleum coke after it is mixed with petroleum pitch, extruded and shaped, then baked to sinter it, and then graphitized by heating it above the temperature (3000 °C) that converts carbon to graphite. They can vary in size up to 11 ft. long and 30 in. in diameter.

Usage: An increasing proportion of global steel is made using electric arc furnaces, and the electric arc furnace itself is getting more efficient and making more steel per tonne of electrode

Specification:

l HP (High Power Grade Graphite Electrodes)
ITEM		UNIT	(M M)NOMINAL DIAMETER
ITEM		UNIT	200-300	350-400	450-500	550-600
BULK DENSITY	ELECTRODE	G/CM3	≥ 1.65	≥ 1.65	≥ 1.65	≥ 1.65
BULK DENSITY	NIPPLE	G/CM3	≥ 1.75	≥ 1.75	≥ 1.75	≥ 1.75
RESISTIVITY	ELECTRODE	μΩM	≤6.5	≤6.5	≤6.5	≤6.5
RESISTIVITY	NIPPLE	μΩM	≤4.0	≤4.0	≤4.0	≤4.0
BENDING STRENGTH	ELECTRODE	MPA	≥12.0	≥12.0	≥12.0	≥12.0
BENDING STRENGTH	NIPPLE	MPA	≥16.0	≥16.0	≥16.0	≥16.0
ELASTIC MODULUS	ELECTRODE	GPA	≤10.0	≤10.0	≤10.0	≤10.0
ELASTIC MODULUS	NIPPLE	GPA	≤14.0	≤14.0	≤14.0	≤14.0
C.T.E. (100-600/°C)	ELECTRODE	10-6/°C	≤ 2.2	≤ 2.2	≤ 2.2	≤ 2.2
C.T.E. (100-600/°C)	NIPPLE	10-6/°C	≤ 2.2	≤ 2.2	≤ 2.2	≤ 2.2
ASH		%	≤0.3	≤0.25	≤0.25	≤0.25