Graphite Electrode with Technical Properties from CNBM
- Ref Price:
-
$10.00 - 100.00
/ m.t.
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 100000 m.t./month
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TECHNICAL PROPERTIES OF GRAPHITE ELECTRODE
1.Physical and chemical index
Item | Unit | RP | HP | UHP | ||||
250-400 | 450-800 | 300-400 | 450-700 | 300-400 | 450-700 | |||
Electric Resistivity | Electrode | μΩ.m | 7.5-8.6 | 7.5-8.8 | 5.5-6.8 | 5.5-7.0 | 4.6-6.0 | 4.8-6.2 |
Nipple | 4.5-5.5 | 4.0-5.0 | 3.5-4.5 | |||||
Bending Strength | Electrode | MPa | ≥8.0 | ≥11.0 | ≥11.0 | |||
Nipple | ≥15.0 | ≥16.0 | ≥18.0 | |||||
Elastic Modulus | Electrode | GPa | ≤9.0 | ≤11.0 | ≤13.0 | |||
Nipple | ≤13.0 | ≤14.0 | ≤15.0 | |||||
Bulk Density | Electrode | g/cm3 | 1.55-1.65 | 1.63-1.73 | 1.65-1.75 | |||
Nipple | 1.70-1.75 | 1.73-1.80 | 1.75-1.82 | |||||
Ash | Electrode | % | ≤0.3 | |||||
Nipple | ||||||||
CTE (100-600)℃ | Electrode | 10-6/℃ | 2.00-2.50 | 1.80-2.00 | 1.30-1.50 | |||
Nipple | 1.50-1.80 | 1.50-1.80 | 1.20-1.40 | |||||
2.Recommended current carrying capacity
Nominal Diameter (mm) | RP | HP | UHP | ||||
Current Carrying Capacity | Current Density | Current Carrying Capacity | Current Density | Current Carrying Capacity | Current Density | ||
in | mm | A | A/cm2 | A | A/cm2 | A | A/cm2 |
12 | 300 | 1000-13000 | 14-18 | 13000-174000 | 17-24 | 15000-22000 | 20-30 |
14 | 350 | 13500-18000 | 14-18 | 17400-24000 | 17-24 | 20000-30000 | 20-30 |
16 | 400 | 18000-23500 | 14-18 | 21000-31000 | 16-24 | 25000-40000 | 19-30 |
18 | 450 | 22000-27000 | 13-17 | 25000-40000 | 15-24 | 32000-45000 | 19-27 |
20 | 500 | 25000-32000 | 13-16 | 30000-48000 | 15-24 | 38000-55000 | 18-27 |
22 | 550 | 32000-40000 | 13-16 | 35000-55000 | 14-22 | 42000-64000 | 17-26 |
24 | 600 | 35000-41000 | 13-15 | 41000-61000 | 14-21 | 50000-73000 | 17-25 |
28 | 700 | 39000-48000 | 10-12 | 55000-82000 | 14-21 | 67000-99000 | 17-25 |
32 | 800 | 43000-54000 | 8-10 | / | / | / | / |
TOLERANCCES OF ELECTRODE DIAMETERS AND LENG THES (MM)
Nominal Diameter | Actual Diameter | Length | |||
in | mm | max | min | Black surface min | |
12 | 300 | 307 | 302 | 299 | 1800/2000 |
14 | 350 | 357 | 352 | 349 | 1800/2000/2200 |
16 | 400 | 409 | 403 | 400 | 1800/2000/2200 |
18 | 450 | 460 | 454 | 451 | 1800/2000/2200 |
20 | 500 | 511 | 505 | 502 | 2000/2200/2400 |
22 | 550 | 562 | 556 | 553 | 2000/2200/2400 |
24 | 600 | 613 | 607 | 604 | 2200/2400/2700 |
28 | 700 | 714 | 708 | 705 | 2400/2700 |
29 | 800 | 815 | 809 | 806 | 2700/3000 |
SIZE OF TAPER-THREAD NIPPLES AND SOCKETS(MM)
Nominal Length | Standard Deviation | Deviation of the short scale length | ||
1800 | +100 | -100 | -100 | -275 |
2000 | +100 | -100 | -100 | -275 |
2200 | +100 | -100 | -100 | -275 |
2400 | +100 | -100 | -100 | -275 |
2700 | +150 | -150 | -150 | -300 |
3000 | +150 | -150 | -150 | -300 |
FINE-GRAIN SPECIALTY GRAPHITE FXG-1
Physical and chemical index
Item | Unit | Guarantee Value | Typical Value |
Max Grante Size | mm | 0.8 | 0.8 |
Bulk Density | g/cm3 | ≥1.70 | 1.73 |
Specific Resistance | μΩ.m | ≤8.5 | 7.5 |
Bending Strength | MPa | ≥10.0 | 11.0 |
Compressive Strength | MPa | ≥24.0 | 27.0 |
Thermal Conductivity | W/(m.k) | ≥120 | 150 |
CTE (100-600)℃ | 10-6/℃ | ≤2.5 | 2.2 |
Ash Content | % | ≤0.3 | 0.09 |
FINE-GRAIN SPECIALTY GRAPHITE FXG-2
Physical and chemical index
Item | Unit | Guarantee Value | Typical Value |
Max Grante Size | mm | 0.8 | 0.8 |
Bulk Density | g/cm3 | ≥1.73 | 1.76 |
Specific Resistance | μΩ.m | ≤8.0 | 7.0 |
Bending Strength | MPa | ≥12.0 | 12.5 |
Compressive Strength | MPa | ≥31.0 | 34.0 |
Thermal Conductivity | W/(m.k) | ≥130 | 160 |
CTE (100-600)℃ | 10-6/℃ | ≤2.5 | 2.1 |
Ash Content | % | ≤0.3 | 0.09 |
MEDIUM-GRAIN SPECIALTY GRAPHITE FCP
Physical and chemical index
Item | Unit | Guarantee Value | Typical Value | Guarantee Value | Typical Value | Guarantee Value | Typical Value |
Max Grante Size | mm | 2 | 2 | 4 | 4 | 8 | 8 |
Bulk Density | g/cm3 | ≥1.58 | 1.60 | ≥1.57 | 1.58 | ≥1.56 | 1.58 |
Specific Resistance | μΩ.m | ≤11.5 | 10.5 | ≤11.5 | 10.5 | ≤12.5 | 11.5 |
Bending Strength | MPa | ≥6.0 | 6.5 | ≥6.5 | 7.0 | ≥7.0 | 7.5 |
Compressive Strength | MPa | ≥18.0 | 18.5 | ≥17.5 | 18.0 | ≥16.0 | 17.0 |
Modulus of Elasticity | GPa | ≤9.3 | 7.5 | ≤9.3 | 7.5 | ≤9.3 | 7.0 |
CTE (100-600)℃ | 10-6/℃ | ≤2.5 | 2.4 | ≤2.5 | 2.4 | ≤2.5 | 2.4 |
Ash Content | % | ≤0.3 | 0.09 | ≤0.3 | 0.09 | ≤0.3 | 0.09 |
MEDIUM-GRAIN SPECIALTY GRAPHITE FCG-1
Physical and chemical index
Item | Unit | Guarantee Value | Typical Value | Guarantee Value | Typical Value | Guarantee Value | Typical Value |
Max Grante Size | mm | 2 | 2 | 4 | 4 | 8 | 8 |
Bulk Density | g/cm3 | ≥1.70 | 1.75 | ≥1.69 | 1.73 | ≥1.68 | 1.72 |
Specific Resistance | μΩ.m | ≤8.5 | 7.5 | ≤8.5 | 7.5 | ≤9.5 | 8.5 |
Bending Strength | MPa | ≥9.0 | 9.5 | ≥9.5 | 10.0 | ≥10.0 | 12.5 |
Compressive Strength | MPa | ≥30.0 | 31.0 | ≥29.0 | 30.0 | ≥30.0 | 31.0 |
Modulus of Elasticity | GPa | ≤12.0 | 9.5 | ≤12.0 | 9.5 | ≤12.0 | 9.0 |
CTE (100-600)℃ | 10-6/℃ | ≤2.5 | 2.3 | ≤2.5 | 2.3 | ≤2.5 | 2.3 |
Ash Content | % | ≤0.3 | 0.09 | ≤0.3 | 0.09 | ≤0.3 | 0.09 |
FAQ
What is the consumption of your Electrode？
The comsumption of Our Electrode can be below 1.0kg/mt, and the everage is 0.5kg/mt.
What is the reason of the problem of broken?
There are several reasons, such as: Amperage is too high, the connection is not good, etc.
- 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
- At present in the world (MgO-C brick raw material for graphite and magnesium) as refractory material, has been widely used in steelmaking, has become a traditional use of graphite.
- Q: Why should the carbon brush for the trolley be made of graphite?
- Graphite conducts electricity and is self lubricant, resistant to wear. As for why, high school chemistry textbooks have ah.
- Q: Does the silicon carbide heat plant require a fine structure graphite electrode? What kind of graphite products do you need?
- But because the silicon carbide is too hard, it is difficult to machining, good workability, such as non special requirements, using graphite instead of silicon carbide, instead of the effect is not good, but can use a silicon carbide, easy processing, small life than silicon carbide.
- Q: Which department in the steel plant needs graphite in large quantities?
- For steel and iron alloys, graphite electrodes are used, when powerful currents pass through electrodes into the melting zone of the electric furnace to produce an arcThe electric energy is converted into heat energy, and the temperature is increased to about 2000 degrees, so as to achieve the purpose of smelting or reaction. In addition, the electrolytic goldWhen the magnesium, aluminium and sodium are used, the anode of the electrolytic cell is also made of graphite electrode. The resistance furnace for carborundum is also made of graphite electrode as the burnerConductive material.
- Q: Why should graphite paper be placed between the heater and the graphite electrode?
- Determine the thickness of the graphite bowl, the thickness of the graphite bowl is generally 3 mm -6 mm, three, determine the diameter of the heater, according to the diameter of the crucible and the thickness of the graphite bowl, calculate the inner diameter of the heater. The gap in the quartz crucible diameter phi = +2 times is +2 times the wall thickness of stone bowl bowl and graphite heater if the graphite bowl wall thickness is a, graphite bowl gap and heater for B (b=5 mm), phi = Phi Phi +2a+2b= within the outer crucible outer crucible +2 (a+b) four, to determine the effective heater the height after practice, the effective length of the quartz crucible heater is high 1.6 to 1.8 times.
- Q: What is the application of wire cutting with graphite electrode?
- With the development of science and technology, the machine manufacturing technology has undergone profound changes. Due to the social demand for diversification of products is more intense, more varieties, small batch production increasing proportion in WEDM by traditional processing equipment has been difficult to adapt to the processing of high efficiency, high quality, diversified requirements, CNC technology should be used
- Q: Why is graphite a negative pole and copper is an anode?
- The process of causing a chemical change by passing through a substance. Chemical change is the process in which material is lost or obtained by electrolysis (oxidation or reduction). Electrolysis is performed in an electrolytic cell. The electrolytic cell is composed of two electrodes, yin and Yang, which are respectively immersed in the solution containing positive and negative ions. The current into the negative electrode (cathode), are positively charged ions migrate to the cathode solution, and with the combination of electronic elements, become neutral or negatively charged molecules; negative ion transfer to another electrode (anode), electrons are given into neutral elements or molecules.
- Q: Jiqiu conductive graphite electrode, how to compare with copper is relatively large resistance value?
- Look at what kind of graphite electrode you need. Now, the resistivity of ordinary power graphite electrode in our factory is 7.5-8.5. It is not clear that the graphite electrode is dipped in 6--7.3. copper
- Q: What about graphite electrodes for steel mills?
- Hebei North graphite electrode factory produces various specifications of graphite electrode, with low resistance, high density, small ash, and so on, so that less tons of steel-making, quality is good
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Graphite Electrode with Technical Properties from CNBM
- Ref Price:
-
$10.00 - 100.00
/ m.t.
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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