HP Graphite Electrode - Leading CNBM China Manufacturer

HP Graphite Electrode - Leading CNBM China Manufacturer System 1

HP Graphite Electrode - Leading CNBM China Manufacturer

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 0 m.t.

Supply Capability:: 100000 m.t./month

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Packaging & Delivery

Packaging Detai	WOODEN CRATES
Delivery Detail:	BASE ON THE QUANTITY OF ORDER

Specifications

graphite electrode
for arc furnace,ladle furnace steelmaking
HS no.8545110000,IEC product standard,ISO9001:2008
nipples:4TPI

Items		Unit	Nominal Diameter(mm)
Items		Unit	250-400	450
Specific Resistance (not over)	Electrode Nipple	μΩ.m	6.5 5.0	7.0 5.5
Bending Strength (not below)	Electrode Nipple	Mpa	10.0 14.0	10.0 14.0
Elastic Modulus (not over)	Electrode Nipple	Gpa	12.0 14.0	12.0 14.0
Bulk Density (not below)	Electrode Nipple	g/cm3	1.64 1.74	1.62 1.74
CTE(100-600)0C (not over)	Electrode Nipple	10-6/0C	2.7 2.5	2.7 2.5
Ash(not over)	Electrode Nipple	%	0.3 0.3	0.3 0.3

ITEM	Unit	UHP		HP		RP
ITEM	Unit	350-450mm	500-700mm	350-450mm	500-700mm	350-450mm	500-700mm
Bulk Density	g/cm³	1.65-1.73	1.65-1.74	1.62-1.72	1.62-1.72	1.54-1.61	1.54-1.61
Specific Resistivity	μΩM	4.2-6.0	4.5-5.8	5.5-6.8	5.6-7.0	7.0-9.0	7.0-9.5
Flexural Strength	Mpa	11.0-15.0	10.0-14.0	10.5-14.5	10.0-13.5	8.0-11.0	7.0-10.0
Elastic Modulus	Gpa	8.5-11.0		8.0-12.0		6.0-9.3
CTE (100-600)°C	10^-6/C	1.30-1.45		1.65-1.95		1.85-2.25
ASH	%	0.1-0.3		0.1-0.3		0.1-0.3

Size

Diameter					Length
Nominal		Actual(mm)			Nominal	Tolerance
mm	inch	Low Spot	Min	Max	mm	mm
250	10	248	251	256	1600 1800	Max+100 Min-100
300	12	299	302	307
350	14	349	352	357
400	16	400	403	409	1600,1800, 2000,2200
450	18	451	454	460	1600,1800, 2000,2200

Product Description

Graphite Electrode is mainly usde for steel-making in electric arc furnace, Ore-smelting Electric furnace and electric resistance furnace. Graphite electrode conduct electric current into the furnace. Electric current produces arc in the smelting

district in the electric furnace, when the temperature increase to about 2000 degree centigrade, raw material begin smelting and products manufactured.A series of graphite electrode is applicable to the common furnace and high power furnace with high pressure and short arc.

Picture

HP Graphite Electrode CNBM China Biggest Supplier

Q: What are the factors affecting the service life of graphite electrode in ultra high power arc furnace?: China's graphite electrode quality standard (YB/T4090-2000) to evaluate the quality of the ultra high power graphite electrode is defined 6 physicochemical indexes, including resistivity, flexural strength, elastic modulus, bulk density and linear expansion coefficient as the quality evaluation index, ash as a reference index.

Q: Use of graphite in steelmaking: Graphite can be used as an agent for carburizing in the steel making industry. Carburizing uses a wide range of carbonaceous materials, including synthetic graphite, petroleum coke, metallurgical coke, and natural graphite. Worldwide, the use of graphite for carburizing is still one of the main uses of earth like graphite.

Q: What is the difference between pyridine type nitrogen and graphite type nitrogen?: High purity graphite is said to produce graphite electrode, ash is very low, generally below 10 million.

Q: Will the brush grease not short-circuit the commutator?: The brush of motor is usually made of pure graphite electrode, electrochemical graphite electrode and metal fossil ink electrode material. Because it contains graphite, it has conductive effect on the one hand

Q: What kind of asphalt is better for natural graphite coating?: Graphite anode is mainly made of petroleum coke as raw material and coal pitch as binder. It is made by calcination, batching, kneading, pressing, roasting, impregnating, graphitization and machining. Conductive anode used for electrolysis equipment in electrochemical industry. Including: (1) anode plate for various chemical industries. (2) all kinds of anode rods.

Q: Graphite powder produced by graphite electrode and what we usually call graphite is a kind of thing?: Coal tar pitch as binder is made by calcination, batching, kneading, pressing, roasting, graphitization and machining

Q: What kinds of carbon are there?: Graphite electrode class can be divided into ordinary power graphite electrode according to the allowable current density. High power electrode and ultra high power electrode.

Q: What are pyrolytic graphite electrodes used for?: (1) the processing speed is faster: normally, the mechanical processing speed of graphite can be 2~5 times faster than copper, while the discharge processing speed is 2~3 times faster than copper;More material is not easily deformed: obvious advantages in the processing of thin electrodes; copper softening point at about 1000 degrees, easily deformed by heat; graphite sublimation temperature is 3650 degrees; the thermal expansion coefficient of copper is only 1/30.

Q: What is the difference between SGL graphite electrode and graphite electrode in general?: In fact, the graphite electrode abroad (including Japan) in several ways than we can control the fine, one is pure, another is anisotropic (resistance, thermal conductivity ah) usually do some control, in the strength of domestic now is also doing well, but when we are comparing high quality products, general domestic products it is basically a piece of the indicators are poor

Q: How large is the permissible overload current per square millimeter of the graphite electrode cross section?: The safe current is decided according to the conductor wire cooling conditions, cooling conditions, the overhead line package, an insulating layer and bare, cooling conditions are also different.

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