Cylindrical Graphite Medium Grain
Extrusion Forming with Axial Properties
Produced by extrusion, cylindrical graphite shows enhanced conductivity and thermal transfer along the axis, making it efficient for electrodes and rods.
Cost-Effective and Reliable
A practical solution for standard applications where consistent performance and optimized cost are critical.
Excellent Thermal and Electrical Conductivity
Ensures stable performance in continuous operations such as furnaces, heating elements, and conductive parts.
Good Machinability for Standard Shapes
Suitable for turning and machining into electrodes, blowing pipes, stirring shafts, and other rotational components.
Versatile Industrial Applications
Widely applied in metallurgy, casting, chemical processing, and glass manufacturing, especially where cylindrical geometry is required.
Description
Cylindrical Graphite Medium Grain
Medium-grain cylindrical graphite is engineered through extrusion technology, delivering reliable performance for a wide range of industrial applications. With excellent thermal and electrical conductivity, cost-effectiveness, and consistent mechanical strength, it is the preferred choice for electrodes, rods, tubes, and other rotational parts used in demanding environments.
What Is Medium Grain Graphite ?
Medium grain graphite refers to synthetic graphite with a particle size typically between fine grain (<0.8 mm) and coarse grain (>2 mm). Compared with fine grain graphite, it has lower machining precision but better cost efficiency and higher thermal conductivity. Compared with coarse grain graphite, it provides finer structure, higher strength, and improved surface finish. This balance makes medium grain grades widely used in EDM electrodes, foundry molds, furnace fixtures, and glass industry tools. In essence, medium grain graphite offers an optimal compromise between machinability, durability, and cost, fitting applications that demand both strength and economy.
Key Features & Benefits
High Axial Performance
Thanks to its extrusion process, cylindrical graphite provides enhanced conductivity and thermal transfer along the axis, ensuring efficiency in electrodes and rods.
Reliable Under Heat and Stress
Designed to withstand continuous operation, it offers excellent thermal shock resistance and stability in high-temperature environments.
Cost-Effective and Practical
Compared to other graphite forms, medium-grain cylindrical graphite provides a balanced combination of performance and value, ideal for standard applications.
Excellent Machinability
Its geometry and consistency make it easy to machine into electrodes, stirring shafts, blowing pipes, and other cylindrical parts.
Cylindrical vs. Block Medium-Grained Graphite
When choosing medium-grained graphite, the shape matters just as much as the grade. Cylindrical graphite rounds are a cost-effective option, commonly used for standard parts like electrodes, rods, and tubes, making them well-suited for continuous operation. Rectangular graphite blocks, on the other hand, offer larger sizes, higher density, and excellent flexibility for machining, which makes them ideal for molds, crucibles, trays, and heavy-duty components where strength and thermal shock resistance are critical. Unlike suppliers that only offer extruded rounds, SHJ Carbon provides both extruded rounds and vibration-molded blocks, giving customers the freedom to select the most suitable material for their applica
|
Dimension |
Cylinders (Graphite Rounds) |
Blocks (Graphite Rectangles) |
|
Forming Method |
Extruded |
Vibration Molded |
|
Structural Feature |
Strong axial properties, higher conductivity along the extrusion direction |
Near isotropic structure, uniform density and strength |
|
Typical Size |
φ200–φ600 mm, length customizable |
500×500×200 mm or larger, can be cut into pieces |
|
Machining Flexibility |
Ideal for rods, tubes, electrodes, stirring shafts (rotational parts) |
Can be cut into molds, crucibles, trays, saggars, large or complex parts |
|
Performance |
High thermal/electrical conductivity, cost-efficient |
Higher density, greater strength, better thermal shock and load resistance |
|
Typical Uses |
Electrodes, blowing pipes, stirring rods, conductive parts |
Molds, crucibles, heat treatment trays, casting molds, saggars |
|
Customer Recommendation |
✅ Best for standard-size conductive and heating components |
✅ Best for customized, large-size, or heavy-duty applications |
Technical Specifications
|
Grade |
MV-12 |
MV-13 |
MV-20 |
ME-11 |
|
|
Type of Forming |
Unit |
Vibro-molded |
Vibro-molded |
Vibro-molded |
Extruded |
|
Bulk Density |
g/cm³ |
1.72 |
1.73 |
1.65 |
1.73 |
|
Specific Resistance |
μΩ.m |
9 |
8.5 |
11 |
8 |
|
Compressive Strength |
MPa |
30 |
35 |
28 |
37 |
|
Flexural Strength |
MPa |
13 |
15 |
9 |
18 |
|
C.T.E (RT-600℃) |
10-6/℃ |
3.2 |
3.3 |
N/A |
2.4 |
|
Thermal Conductivity |
W/(m.k) |
100 |
130 |
N/A |
N/A |
|
Ash |
% |
0.2 |
0.12 |
0.25 |
0.2 |
|
Maximum Grain Size |
mm |
0.8 |
0.8 |
2 |
0.8 |
|
Regular Size |
Blocks: 500*500*(1800/1850), 650*(500/600)*(1800/1850/2200), 800*500*1850, 950*500*1850, 1100*400*2200, 1250*450*2200. |
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The above properties are typical values, not guaranteed, other specifications are available. |
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Applications for Medium Grain graphite
Metallurgy & Casting
Exposure to molten metal erosion (e.g., aluminum alloys) and intermittent thermal shock requires materials with low wettability and strong corrosion resistance.
Chemical & Electrolysis
Corrosive environments involving acids, alkalis, and molten salts, combined with medium-to-high temperature electrical conduction and heat exchange. Graphite heat exchanger blocks and tube sheets, anodes or cathodes for magnesium, manganese, and sodium electrolysis, and conductive/supporting components in electrolysis cells.
Lithium-Ion Batteries
Carbonization and graphitization of anode precursors require long heat treatment cycles, repeated high-temperature loading/unloading, and strong thermal shock resistance. Crucibles for anode carbonization, graphitization saggers and plates, loading frames/trays, furnace insulation linings.
Heat Treatment & Refractories
Processes often take place in vacuum or inert atmospheres, with repeated heating and cooling cycles between 800–2200 °C. Materials must show low dust generation and excellent resistance to thermal shock. Heating elements, conductive electrodes and connectors, loading trays/plates, muffle boxes, thermal field linings and supports, crucibles/material boxes, tooling, and molds.
Why Choose SHJ CARBON
Technology First
We offer a variety of transmission components
25+ Years of Industry Experience
Proven expertise in carbon and graphite insulation for high-tech manufacturing.
Trusted by Top Manufacturers
Long-term supplier to leading electronics, semiconductor, and solar PV companies.
Custom Engineering Support
Tailored designs in boards, cylinders, and complex 3D shapes to match exact specifications.
Advanced Production & Purification
Secondary high-temperature treatment up to 2800 °C for exceptional purity.
Customized Graphite Solutions
Beyond standard grades, SHJ CARBON develops customized graphite blocks tailored to client requirements. We adjust grade, density, and size according to application needs, whether for high-purity environments, specialized furnace designs, or large-format tooling. Every project receives engineering support and quality control documentation, ensuring confidence in both performance and delivery.
With SHJ CARBON, you gain more than a supplier-you gain a partner committed to optimizing your process performance with world-class graphite solutions.
Medium Grain Graphite – FAQ
A1: It is a synthetic graphite with particle size between fine and coarse grades. It offers balanced density, good machinability, and strong thermal performance.
A2: Medium grain graphite provides high thermal conductivity, thermal shock resistance, and oxidation resistance, making it reliable under harsh conditions.
A3: Industries use it for EDM electrodes, foundry molds, glass forming tools, furnace parts, and refractory applications.
A4: SHJ CARBON supplies graphite blocks, rods, and plates, plus customized grades and sizes for specific requirements.
A5: We offer stable quality, engineering support, and consistent delivery, backed by decades of graphite manufacturing experience.
Get in Touch – Request a Quote
Ready to enhance your thermal management systems with high-performance medium grain graphite ? Reach out today for expert advice, customized solutions, and fast delivery.
Contact Us Now or Request a Quote.
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