Graphite Electrode RP,HP, UHP for steel making

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10 m.t.
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100000 m.t./month

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Product Description:

Specifications

1.Diameter:40 - 600mm or1.6"-24" 
2.Length: 250 - 2400mm or10"-96" 
3.Grades:RP, RPI, HP, SHP, UHP 
Nipples:3-4TPI 
ISO9001:2000

                        Graphite Electrode for steel making

 

Applications

 

Used in EAF and LF for steel making, as well as in electric smelting furnace for producing industrial silicon, phosphorus, etc.

 

Programmable properties


1.Good electrical conductivity
2.High resistance to thermal shock 
3.High mechanical strength

 

Grades:RP, RPI, HP, SHP, UHP

 

All graphite electrodes are offered with tapered nipples, i.e. 3 or 4 threads per inch, and meet the internationally accepted tolerances as per NEMA CG 1/ IEC 60239 / JIS R7201 standards.

 

Specifications

 

Item

Unit

Regular-power

Impregnated

φ75-
130

φ150-
225

φ250-
300

φ350-
500

φ75-
200

φ250-
350

φ400-
500

Specific Resistance (≤)

E

μ Ω·m

8.5

9

9

9

8

8

8

N

8

8

8

8

7.5

7.5

7.5

Bending Strength (≥)

 

E

MPa

 

9.8

9.8

7.8

6.4

10

9

8

N

13

13

13

13

15

15

15

Elastic Modulus (≤)

 

E

GPa

 

9.3

9.3

9.3

9.3

12

12

12

N

14

14

14

14

14

14

14

Bulk Density (≥)

 

E

g/cm3

 

1.58

1.52

1.52

1.52

1.58

1.58

1.58

N

1.63

1.63

1.68

1.68

1.68

1.68

1.68

C.T.E.(≤)
(100-600°C)

 

E

10-6/°C

 

2.9

2.9

2.9

2.9

2.7

2.7

2.7

N

2.7

2.7

2.8

2.8

2.5

2.5

2.5

Ash(≤)


%

0.5

0.5

0.5

0.5

0.3

0.3

0.3

 

Item

Unit

High-power

Super high-power

Ultra high-power

φ200-400

φ450-500

φ350-400

φ450-500

φ300-400

φ450-500

Specific Resistance(≤)

E

μ Ω·m

7

7.5

6.5

7

6.2

6.5

N

6.5

6.5

6

6

5.5

5.5

Bending Strength (≥)

 

E

MPa

 

10.5

9.8

10.5

10

10.5

10

N

15

15

16

16

16

16

Elastic Modulus (≤)

 

E

GPa

 

12

12

13

13

14

14

N

16

16

17

17

18

18

Bulk Density (≥)

 

E

g/cm3

 

1.6

1.6

1.62

1.62

1.65

1.64

N

1.7

1.7

1.71

1.71

1.72

1.72

C.T.E.(≤)
(100-600°C)

 

E

10-6/°C

 

2.4

2.4

2.2

2.2

1.5

1.5

N

2.2

2.2

1.8

1.8

1.4

1.4

Ash(≤)


%

0.3

0.3

0.3

0.3

0.3

0.3

FAQ

①How about your company?

A world class manufacturer & supplier of castings forging in carbon steel and alloy steel,is one of the large-scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirements.

②How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.


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Q:I used 12V direct current, graphite electrode electrolysis sodium sulfide solution, the anode produced a large number of black material, this is why ah?
The problem is this. I have done the test of electrolytic copper sulfate, and the anode produced the same phenomenon. Finally, the chemistry teacher told me that it was because the graphite was broken in the process of electrolysis
Q:National standard for graphite electrodes
The national standard normal power graphite electrode graphite electrode: the standard name standard classification number Q51 Standard No. YB/T 4088-2000 for YB/T 4088-2000 YB/T 4088-1992 2000/12/1, instead of the execution time of 0:00:00 release time 2000/7/26 0:00:00 adoption situation
Q:What kinds of carbon are there?
The carbon block can be divided into blast furnace carbon block, aluminum carbon block and electric furnace block. Carbon products can be divided into carbon products, graphite products, carbon fibers and graphite fibers according to the depth of processing. Carbon products can be divided into graphite products, carbon products, carbon fibers and special graphite products according to the raw materials and the production process. Carbon products according to their ash content, and can be divided into multi gray products and less ash products (including ash below l%).
Q:In EDM, the electrodes are made of graphite and copper. Please tell us the difference between them
For example, the electrode is large, and this time it is necessary to consider whether the weight of the electrode is up to standard and, if so, the preferred graphite electrode
Q:Can graphite be used as an electrode for electrolysis of silver in silver nitrate?
Xiaoyi Liyang said the principle is correct, but can get silver? I think we can solve the problem if we take proper measures to get the silver elements, such as separating the anode and the cathode from the salt water!
Q:The graphite electrode made by the machining center adopts cooling method, which is water cooled, oil cooled and blow cold. Which is good?
Use oil cold. Air cooling will cause graphite dust flying, on the one hand, toxic, on the one hand there are security risks (caused by circuit short circuit). Water cooling is virtually out of use, taking into account the maintenance and maintenance of the CNC.
Q:How large is the permissible overload current per square millimeter of the graphite electrode cross section?
9A/mm2 safety current should be bare overhead, 5A/mm2 is obviously insulation lines, the indoor environment standards.
Q:The future of graphene
Energy storage and new display areas. Graphene has excellent conductivity and transparency. As a transparent conductive electrode material, graphene has a good application in touch screen, liquid crystal display, energy storage batteries and so on. Graphene is considered to be the most potential alternative to indium tin oxide manufacturing in touch screen manufacturing, and Samsung, SONY, Hui Rui, 3M, Dongli, Toshiba and other leading enterprises have made key research and development layout in this field. Researchers at the University of Dezhou, Austen, used KOH to chemically modify graphene to form a porous structure, resulting in a storage density of ultracapacitor near the lead acid battery. Michigan Technological University scientists have developed a unique honeycomb structure of three-dimensional graphene electrode, photoelectric conversion efficiency of 7.8%, and low price, is expected to replace platinum in solar cells applications. Toshiba Co developed graphene and silver nanowires composite transparent electrode, and achieved a large area.
Q:What's the use of carbon?
Common power graphite electrode. Allows the use of current density of less than 17A/ cm 2 graphite electrode, mainly used for steelmaking, smelting silicon, yellow phosphorus and other ordinary power furnace.
Q:What is the composition of petroleum coke and what is its use?
Mainly used for making carbon products, such as graphite electrodes, anode arc, steel, non-ferrous metals, with aluminum for use; silicon carbide products, such as grinding wheel, rubber, sandpaper; producing goods for the production of synthetic fiber, calcium carbide acetylene and other products; also can be used as fuel for fuel, but for grading impact for grinding superfine grinding, through the JZC-1250 device can be made of coke powder after combustion, using coke powder as fuel is mainly some glass factory, coal water slurry plant etc..

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