• China 300mm Large Size Carbon Graphite Electrode CNBM 500-700 System 1
  • China 300mm Large Size Carbon Graphite Electrode CNBM 500-700 System 2
  • China 300mm Large Size Carbon Graphite Electrode CNBM 500-700 System 3
China 300mm Large Size Carbon Graphite Electrode CNBM 500-700

China 300mm Large Size Carbon Graphite Electrode CNBM 500-700

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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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Programmable properties

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

Packaging & Delivery

Packaging DetaiWOODEN CRATES
Delivery Detail:BASE ON THE QUANTITY OF ORDER


Usage

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

Grades:  RP, RPI, HP, SHP, UHP

Diameter:40 - 600mm or1.6"-24"
Length: 250 - 2400mm or10"-96"

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.

Specification

1.Diameter:40 - 600mm or1.6"-24" 
2.Length: 250 - 2400mm or10"-96" 
3.Grades:  RP, RPI, HP, SHP, UHP(ISO9001:2008standard) 
4.Nipples:3TPI,4TPI 


Item

S级炭电极

G级炭电极


Φ500~Φ700


Φ750~Φ960


Φ1020~Φ1400

Φ500~Φ700


Φ750~Φ960


Φ1020~Φ1400

电阻率
μΩ.m

≤45

≤45

≤45

≤38

≤38

≤40

体积密度
g/cm3

≥1.55

≥1.55

≥1.55

≥1.58

≥1.58

≥1.58

抗折强度
MPa

3.5~7.5

3.5~7.5

3.5~7.0

4.0~7.5

4.0~7.5

4.0~7.5

抗压强度
MPa

≥20.0

≥20.0

≥19.0

≥20.0

≥20.0

≥19.0

热膨胀系数
10-6/℃

3.2~4.8

3.2~4.8

3.2~4.8

3.0~4.6

3.0~4.6

3.0~4.6

灰 分
%

≤2.5

≤2.5

≤2.5

≤2.0

≤2.0

≤2.0


Item

S GRADE

G grade

Φ500Φ700

Φ750Φ960

Φ1020Φ1400

Φ500Φ700

Φ750Φ960

Φ1020Φ1400

Rs
 μΩ.m

≤45

≤45

≤45

≤38

≤38

≤40

Bulk Desity

g/cm3

≥1.55

≥1.55

≥1.55

≥1.58

≥1.58

≥1.58

Bending Strength
 MPa

3.57.5

3.57.5

3.57.0

4.07.5

4.07.5

4.07.5

Compressive Strength
 MPa

≥20.0

≥20.0

≥19.0

≥20.0

≥20.0

≥19.0

Thermal  Expansivity
 10-6/

3.24.8

3.24.8

3.24.8

3.04.6

3.04.6

3.04.6

Ash
 %

≤2.5

≤2.5

≤2.5

≤2.0

≤2.0

≤2.0



Large Size Carbon Electrode CNBM China 500--700

Large Size Carbon Electrode CNBM China 500--700


Q: How to improve the efficiency of graphite electrode milling, please tell me
There are many factors that determine the need to continue producing graphite electrodes, so high-speed machining has become a key manufacturing process in the die manufacturing industry. Compared with the time required for the milling of graphite electrodes, the processing of high rigidity hard steel still takes longer. When milling dies, cavities, and complex 3D surfaces on hard steel, radial runout errors and tool deviations often result in fracture of the tool. When the tool is broken, it will not only stop the continuous processing of the steel, but also affect the quality of the product, which will lead to the scrap of the parts and the waste of the material.
Q: Why use platinum ferroalloy instead of iron as electrode?
General industrial grade silicon dioxide, because the preparation technology is different, can be divided into two types, one is dry, sintered (Fume Type), a wet precipitation type (Precipitated Type), and two of the surface area, the surface with hydroxyl (-OH) are the same, in general, the former the latter is more, less, the two surface has the tendency of hydrophilic, as for lipophilic polymer, such as paint, rubber... Etc.,... If the silica surface pre rendered hydrophobic, has a good effect.
Q: What is the graphite furnace electrode with a diameter of 400?
The variety and specifications of graphite electrodes used in modern EAF steelmaking are mainly determined by the technical parameters of the steelmaking furnace.
Q: How long is the graphite electrode machining cycle?
When the cut depth is less than 0.2mm, the graphite will break down very little, and the surface quality of the side wall will be better.
Q: What kind of asphalt is better for natural graphite coating?
Main types of graphite electrode with petroleum coke and needle coke, coal tar pitch as binder, calcination, mixing, kneading, pressing, baking and graphitization, and made the processing machine, is a conductor in an electric arc furnace to form arc release electricity for heating and melting of the charge, according to the quality index level, can is divided into ordinary power, high power and ultra high power.
Q: Electrolytic water solution, two electrodes are graphite electrode, the negative electrode can produce large amounts of hydrogen, the anode does not produce half of oxygen, and only a small amount of it?
Graphite electrodes react with oxygen to form carbon dioxide, soluble in water
Q: How does graphite produce solar cells?
Gerrit J said: "despite the modifications, but the inherent nature of graphene remains unchanged, is a significant advantage of composite materials."
Q: Jiqiu conductive graphite electrode, how to compare with copper is relatively large resistance value?
This is not a good estimate of the sheet graphite resistance after 5mm
Q: What does graphite electrode GSK mean?
Graphite is made of high-strength graphite, it is a kind of graphite grade specification.
Q: How about graphite electrode high-temperature oxidation resistant coating?
The utilization ratio of graphite energy can reach more than 95%. Many kinds of antioxidant paint, it is recommended to directly find their technicians, you can give professional advice, according to the actual situation, the reasonable use of high-temperature oxidation resistant paint.

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