UHP Graphite Electrode

Your Professional UHP Graphite Electrode Supplier

Founded in 2007, Wanlong Carbon Group is an industrial and trade enterprise specializing in the research and development, production and sales of carbon materials. The products have the characteristics of high mechanical strength, good thermal shock resistance and low consumption, and are widely used in steel, yellow phosphorus, corundum, industrial silicon, photovoltaic, semiconductor, non-ferrous metals, chemical industry and other industries.

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Why choose us

Annual Output

Founded in 2007, the annual output of graphite electrodes has reached 100,000 tons.

System Certification

Wanlong Carbon Group has passed the ISO 9001 quality system and ISO 14001 environmental system certifications.

Company Size

There are more than 400 employees, including over 50 professional and technical personnel. The factory covers an area of 120,000 square meters.

Customized Service

Quality is the lifeblood of the company. With integrity as the foundation and stable management, we are committed to providing customers with quality products and excellent service.

Specification

Table 1: Technical Specification of UHP Graphite Electrode
Dia (inch)	Resistance (≤, µΩ·m)	Density (≥, g/cm³)	Flexure Strength (≥, MPa)	Elastic Modulus (≤, GPa)	Ash Content (≤, %)	CTE (100 °C – 600 °C) (≤, 10^-6/°C)	Current Load (A)	Current Density (A/cm²)
10	5.5	1.67	11	14	0.3	1.5	8100–12200	20–30
12	5.5	1.67	11	14	0.3	1.5	15000–22000	20–30
14	5.5	1.67	11	14	0.3	1.5	20000–30000	20–30
16	5.5	1.67	11	14	0.3	1.5	25000–40000	19–30
18	5.5	1.66	11	14	0.3	1.5	32000–45000	19–27
20	5.5	1.66	11	14	0.3	1.4	38000–55000	18–27
22	5.5	1.66	11	14	0.3	1.4	42000–66000	17–26
24	5.5	1.66	11	14	0.3	1.4	49000–76000	17–26

Table 2: Graphite Electrode Size & Tolerance
Diameter (mm)					Length (mm)
Nominal Diameter		Actual Diameter			Nominal Length	Tolerance	Short Length
(inch)	(mm)	(max.)	(min.)	(rough spot)	Nominal Length	Tolerance	Short Length
10	250	256	251	248	1600/1800	±100	-275
12	300	307	302	299	1600/1800
14	350	357	352	349	1600/1800
16	400	409	403	400	1600/1800/2000/2200
18	450	460	454	451	1600/1800/2000/2200
20	500	511	505	502	1800/2000/2200/2400
22	550	562	556	553	1800/2000/2200/2400
24	600	613	607	604	2000/2200/2400

Surface Quality

There should be less than two defects or holes on the electrode surface, the maximum size of which is mentioned in the below chart.

There should be no transverse crack on the electrode surface. For the longitudinal crack, the length should be less than 5% of the electrode circumference and the width should be 0.3 to 1.0 mm.

The width of black area on electrode surface should be less than 1/10 of the electrode circumference and the length should be less than 1/3 of the electrode.

SpecificationDefect Dimension	Nominal Diameter of Graphite Electrode (mm)
SpecificationDefect Dimension	300–400	450–600
Diameter (mm)	20–40 (< 20 mm should be negligible)	30–50 (< 30 mm should be negligible)
Depth (mm)	5–10 (< 5 mm should be negligible)	10–15 (< 10 mm should be negligible)

Main features

01/

High temperature resistance: It can withstand high temperatures during the electric arc furnace (EAF) steelmaking process. Even in harsh high temperatures up to 3600 degrees Celsius, it will not melt or deform or be damaged under the action of strong arcs.

02/

Good electrical conductivity: They have low ash content, are heat-resistant and corrosion-resistant. Therefore they are excellent conductive materials used in electric arc furnaces at high temperatures.

03/

Low specific resistance: The specific resistance of the electrode body is below 5.0g∕㎝3, and the nipple is below 4.0g∕㎝3. At this time, the resistance to current is small, reducing power loss.

04/

High density: The overall structure has smaller porosity, reducing electrode consumption.

05/

High mechanical strength: During the kneading process, the coke particles are mixed evenly and bonded firmly. Therefore, the flexural and compressive strength are high.

06/

Small thermal expansion coefficient: Because needle coke is added during the production process, the blank is more easily graphitized at high temperatures above 2000℃. The better the degree of graphitization, the smaller the thermal expansion coefficient.

Service Display

Pre-sales:
recommend suitable products according to the actual working conditions and needs of customers.It can also bedeveloped and designed according to needs, and customized services can be provided. During the epidemic, provide remote detection technical support.

Strict quality control:
From raw materials, to the production process and befor eleaving the factory, all performance indicators arestrictly tested, and the professional QC team controls according to the process.

After-sales service:
Quality assurance and Resolution of any issues that arise

FAQ

Q: Can we visit your company?

A: Sure,welcome at any time,seeing is believing.

Q: Do you accept OEM?

A: Yes, we can do OEM.

Q: What's the MOQ of trial order?

A: No limit,We can offer the best suggestions and solutions according to your condition.

Q: What are the payment terms?

A: Usually T/T,but L/C,Western Union etc are available for us.

Q: How long is delivery time?

A: The delivery time will be determined according to the quantity of the order.

Q: How are your products' quality?

A: The products will be strictly inspected before shipment, so the quality could be guaranteed.

Q: How about your company's certification?

A: ISO9001 and Test Report,also we could apply other necessary certification.

As one of the leading uhp graphite electrode manufacturers and suppliers in China, we warmly welcome you to buy good quality uhp graphite electrode from our factory. All customized products are with high quality and competitive price.

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