Professional Supplier 500mm Dia. UHP Graphite Electrode

Product Description

Product Description

Graphite Electrode
Graphite electrodes are characterized by low resistance, good electrical conductivity, thermal conductivity, high resistance to oxidation and thermal shock, high mechanical strength, etc. According to its high quality and low quality, it can be divided into ordinary power graphite electrodes, high power graphite electrodes and ultra-high power graphite electrodes.
The Length & Diameter & Permissible Deviation of Graphite Electrode

Nominal Diameter		Actual Diameter			Length (mm)	Tolerance
MM	Inch	Poppy	Mines	The Minimum Size Of The Black Part		Length	Short Length
75	3	78	73	72	1400/1600	± 100	-275
100	4	103	98	97	1400/1600
130	5	132	127	126	1400
150	6	154	149	146	1400/1600/1800
175	7	180	174	172	1400/1600
200	8	205	200	197	1600/1800
225	9	230	225	222	1600/1800
250	10	255	251	248	1600/1800
300	12	307	302	299	1600/1800/2000
350	14	357	352	349	1600/1800/2000
400	16	409	403	400	1600/1800/2000/22000
450	18	460	454	451	1600/1800/2000/22000
500	20	511	505	502	1600/1800/2000/22000
550	22	562	556	553	1800/2000/2200/2400
600	24	613	607	604	2000/2200/2400/2700
650	26	663	659	656	2000/2200/2400/2700
700	28	714	710	707	2000/2200/2400/2700

Technical Characteristics of Graphite Electrode RP, HP, UHP

Name		Unit	Nominal Diameter
			UHP Ultra-High-Power		HP Superstrong		RP Conventional Power
			≤Φ400	≥Φ450	≤Φ400	≥Φ450	≤Φ300	≥Φ350
Resistivity	Electrode	ΜΩ · m	≤5.5		≤6.5		≤8.5
	Nipple		≤4.5		≤5.5		≤6.5
Flexural Strength	Electrode	MPa	≥11.0		≥10.5	≥9.8	≥8.5	≥7.0
	Nipple		≥20.0		≥16.0		≥15.0
Elastic Modulus	Electrode	GPa	≤14.0		≤12.0		≤9.3
	Nipple		≤18.0		≤16.0		≤14.0
Density	Electrode	g / cm3	≥1.66	≥1.67	≥1.62	1.6	≥1.53	≥1.52
	Nipple		≥1.75		≥1.73		≥1.69
Coefficient Of Thermal Expansion	Electrode	10-6 / ºC	≤1.5		≤2.4		≤2.9
	Nipple		≤1.4		≤2.2		≤2.8
ASH		%	≤0.3		≤0.3		≤0.5
Note: 1.Koeffitsient ash content and thermal expansion as the reference index, the coefficient of thermal expansion (100 ºC ~ 600 ºC), Custom manufacturing.

Technical Characteristics of High Density Graphite Electrode (HD)

Name		Unit	Nominal Diameter
			75-200 mm		250-300mm		400-500mm
			top grade	first grade	top grade	first grade	top grade	first grade
Resistivity (Not More Than)	Electrode	ΜΩ · m	8.0	9.0	8.0	9.0	8.0	9.0
	Nipple		7.5		7.5		7.5
Flexural Strength(not less than)	Electrode	MPa	10		9		8
	Nipple		13		13		13
Elastic Modulus(no more)	Electrode	GPa	12		12		12
	Nipple		14		14		14
Density(not less than)	Electrode	g / cm3	1.58		1.58		1.58
	Nipple		1.68		1.68		1.68
Coefficient Of Thermal Expansion (No More)	Electrode	10-6 / ºC	2.7.		2.7.		2.7.
	Nipple		2.5		2.5		2.5
Ash Content (not more than)		%	0.3		0.3		0.5
Note: 1. The coefficient of ash content and thermal expansion as a reference index.

Technical Characteristics of a Quasi-Superhigh-Gauge Graphite Electrode (EGPK-SHP)

Name		Unit	Nominal Diameter (mm)
			300, 350, 400	450, 500
Resistivity (not more than)	Electrode	ΜΩ · m	6.2	6.5
	Nipple		5.5	5.5
Flexural Strength(not less than)	Electrode	MPa	10.5	10
	Nipple		16	16
Elastic Modulus(no more)	Electrode	GPa	14	14
	Nipple		18	18
Density(not less than)	Electrode	g / cm3	1.65	1.64
	Nipple		1.72	1.7
Coefficient Of Thermal Expansion (no more)	Electrode	10-6 / ºC	1.5	1.5
	Nipple		1.4	1.4
Ash Content (not more than)		%	0.3	0.3
Note: 1. Zonality as a reference index.

 

 

Company Profile

 

FAQ

1. Q: Do you provide sample service?
A: Yes, we only provide samples and ask for one piece at a time. The freight should be borne by you.

2. Q: Do you support customized services?
A: Yes, we can customize the size and logo according to your needs. Please consult the customer service for the specific minimum order quantity.

3. Q:  How is the Design & Engineering?
A:  Experienced and skilled team of designers including CAD designers and 3D designers has the capacity to deliver outstanding designs for your project. If you require more complex engineering of structures such as overhead transmission and distribution lines design,we can also provide this service also designer fee . 

4. Q:  What's the payment term? 
A:  We accept T/T, L/C, West Union.

5. Q:  What's the delivery time? 
A:  Usually within 7-15 days according to quantities 

6. Q:  What's the standard of package? 
A:  Export standard package or special package as the requirement of customers. 

7. Q:  What kind of product quality your factory offer? 
A:  Our products with both excellent quality and competitive price. And we offer free sample for your reference. 

8. Q:  What kind of certificate you have? 
A:  We have ISO9001:2008