High Purity High Density Graphite Blocks
USD $1,000 - $4,000 /Ton
Min.Order:1 Ton
Qingdao Develop Import & Export Co., Ltd.
Specifications:
1. high strength
2. bearing high tempretu
4. corrosion-resistantre
3. anti-oxidant
5. good thermal and electric conductivity
6. chemical stability
7. easy to be machining progressed
8. high lubricity
Application:
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 monocrystalline 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
Packaging detail: veneer cases or wooden cases or according to customers’ request to make the seaworthy packing
Delivery detail: according to customers’ request, usually 10-20days
Typical sizes:
Block (mm): 400x400x1800; 500x500x1950, 500x330x1950, 500x430x1950, 520x350x2150, 630x630x2200, 600x500x2200, 820x340x2100, 520x350x2600, 1100x11000x350
NOTE: the special specification can be made according to customers’ demands
| high pure graphite | |||
Item | Unit | baked twice | baked three time | baked four times |
impregnated once | impregnated twice | impregnated three times | ||
grain size | mm | ≤325μm | ≤325μm | ≤325μm |
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 |
|
| 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 |
Graphite block, as one of the most important graphite products, is widely used in such field as metallurgy, mechanical, electronics and chemical industry and so on. It is Vibration-molded or extruded, carbonized and graphitized under precise technical control.
Producing progress:
Raw material->
Medium crushing/milling->
Screening->dosing->kneading->vibrated molding->impregnation->baking->graphitization
Plywood case packing, interspace with filling materials in order to avoid shaking.