high pure 325 mesh graphite block
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China [CN] DEFINATION:
The graphite blocks are made from the low ash petroleum coke and its C content is above 99%.After milling, screening, dosing,kneading,vibrated molding, pitch impregnation,baking and high temperature graphitization,our high pure blocks all meet the standard JB/T 2750-2006.
MATERIAL SPECIFICATIONS:
| Fine-grain Specialty Graphite FXG-1 | Fine-grain Specialty Graphite FXG-2 | ||||
| Item | Unit | Guarantee value | Typical value | Guarantee value | Typical value |
| Max grain size | mm | 0.8 | 0.8 | 0.8 | 0.8 |
| Bulk density | g/cm3 | ≥1.70 | 1.73 | ≥1.73 | 1.76 |
| Specific resistance | μΩ.m | ≤8.5 | 7.5 | ≤8.0 | 7 |
| Bending strength | MPa | ≥10.0 | 11 | ≥12.0 | 12.5 |
| Compressive strength | MPa | ≥24.0 | 27 | ≥31.0 | 34 |
| Thermal Condcutivity | W/(m.k) | ≥120 | 150 | ≥130 | 160 |
| C.T.E.(100-600) °C | 10-6/°C | ≤2.5 | 2.2 | ≤2.5 | 2.1 |
| Ash content | % | ≤0.3 | 0.09 | ≤0.3 | 0.09 |
| Item | Unit | Isostatic graphite |
| grain size | μm | 5-22 |
| Bulk density | g/cm3 | 1.75-1.85 |
| Specific resistance | μΩ.m | 10-15 |
| Bending strength | MPa | >=40 |
| Compressive strength | MPa | >=70 |
| Shore hardness | >=55 | |
| C.T.E.(100-600) °C | 10-6/°C | 3.2-5.2 |
| Modulus of elasticity | GPa | 9.5-12.5 |
| high pure graphite | ||||
| Item | Unit | baked twice | baked three time | baked four times |
| impregnated once | impregnated twice | impregnated three times | ||
| grain size | mm | ≤325mesh | ≤325mesh | ≤325mesh |
| Bulk density | g/cm3 | ≥1.68 | ≥1.78 | ≥1.85 |
| Specific resistance | μΩ.m | ≤14 | ≤14 | ≤13 |
| Bending strength | MPa | ≥25 | ≥40 | ≥45 |
| Compressive strength | MPa | ≥50 | ≥60 | ≥65 |
| Ash content | % | ≤0.15 | ≤0.1 | ≤0.05 |
| Item | Unit | Guarantee value | Typical value | Guarantee value | Typical value | Guarantee value | Typical Value |
| Max grain size | mm | 2 | 2 | 4 | 4 | 8 | 8 |
| Bulk density | g/cm3 | ≥1.58 | 1.6 | ≥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 | ≥7.0 | 7.5 |
| Compressive strength | MPa | ≥18.0 | 18.5 | ≥17.5 | 18 | ≥16.0 | 17 |
| Modulus of elasticity | GPa | ≤9.3 | 7.5 | ≤9.3 | 7.5 | ≤9.3 | 7 |
| C.T.E.(100-600) °C | 10-6/°C | ≤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 |
ADVANTAGES:
1.High temperature resistance:The graphite is one of the best material resistant to the high temperature.Its melting point is 3850℃±50℃,boiling point can be up to 4250℃.In the high temperature 7000℃ for 10S,the graphite material lose least,so,it is with the great ability to high temperature.
2.Special thermal shock resistance:When the temperature changed suddenly,because of the small CTE,the graphite has the better thermal stability.
3.Thermal and electrical conductivity:about four times better than the stainless steel,100 times better than the general non-metal.
4.Good lubricity.
5.Good chemical stability:In the normal temperature, the graphite material has the good chemical stability and can afford the corrosion of the acid, alkali and organic solvent.
USING FIELD:
graphite block is widely used in the metallurgy,machinery,electric, chemical area and so on.
1. Molds: hot pressing molds, static casting molds, centrifugal casting molds, pressure casting molds, fused refractory molds, etc.
2. Furnace parts: resistance heating elements, induction susceptors, structural elements and charging plates, furnace linings, heat shields and covers for pulling mono crystalline silicon or optical fibers, etc.
3. Anodes for the electrolysis of metals.
4. Cathodes in aluminum electrolysis cells.
5. Parts for heat exchangers.
6. Crucibles for melting and reduction.
7. Boats and trays for sintering.
8. Magnesium electrolysis and Nickel electrolysis
0.8mm graphite block Typical sizes:
Block (mm): 400x400x1800; 500x500x1950, 500x330x1950, 500x430x1950, 520x350x2150, 630x630x2200, 600x500x2200, 820x340x2100, 520x350x2600, 1100x11000x350
0.8mm graphite round typical sizes:
Round(mm):
Dia:720X350,Dia:800X350,Dia:900x350,Dia:500x1950,Dia:900X450,Dia:900X500,Dia:100X450,Dia:600X1950,Dia:720X610,Dia:800X610,Dia:900X610,Dia:1000X500,Dia:1100X610,Dia:1200X500,Dia:1400X400,Dia:1500X400,Dia:1800X400
PACKAGE:
1:Wooden crates with steel straps; wooden crates treated with "IPPC" label
2:standard export fumigated wooden box with steel strip fixed outside
COMPANY INFORMATION:
Zibo Ouzheng Trading Co., Ltd is a professional trading company in the area of graphite products, e.g. graphite electrode, graphite block, graphite crucible, graphite rotor and shafts, graphite rod, graphite felt, graphite plate, etc. Our company locates in ZHANGDIAN district, ZIBO city, SHANDONG province, which is a main graphite producing area in china. We are close to Qingdao Port and there is also Jiao-Ji Railway, Ji-Qing Expressway and No.309 National Highway all runs through the place.
We have the experienced employees and professional engineers and designers , the first-level equipment in the world and due to the strict request for the quality, the products have got the CERTIFICATE OF QUALITY MANAGEMENT SYSTEM(ISO9001:2008). Also,because of the high productivity ,we can guarantee the delivery time of different grades of graphite products..
With the high reputation, stabilized quality and excellent service, Ouzheng are ready for cooperating with the customers all over the world.
OUR SERVICE:
Provide the high quality and low price product
Offer the safest package and transportation
Offer the most satisfied service
Provide the best after-sales service
Professional technical and individual advice provided at customers’own sites
Detailed design proposals to solve customer-specific problems
FAQ:
1. Delivery time?
The delivery time is around 30 days after receiving your deposit or L/C.
2. MOQ?
we can accept 1MT order.
3. Payment term?
30% deposit, balance against the BL copy; 100% L/C at sight
4. Production Capacity of our factory?
300MT per month.
5.What about the samples?
We can offer some free samples ,but you may need to pay the freight
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