Industrial-grade molded graphite blocks are manufactured for machining components, thermal fixtures, and industrial tooling. Available in BTG-4 and BTG-5 grades, these blocks offer balanced combinations of mechanical strength, density, and electrical resistivity.
Available as raw material stock, precision-cut blanks, or fully machined components based on your 2D/3D engineering drawings. Material selection should be evaluated against your specific operating temperature, mechanical load, and environment.
Technical Specifications
|
Physical & Chemical Property |
Typical Value |
|
Bulk Density |
>= 1.80 g/cm3 |
|
Compressive Strength |
>= 60 MPa |
|
Flexural Strength |
>= 35 MPa |
|
Electrical Resistivity |
<= 11 uOmega.m |
|
Shore Hardness |
>= 40 |
|
Max Particle Size |
<= 43 um |
|
Ash Content |
<= 1000 ppm |
Supply Options & In-House Machining Services
Manufacturing facilities equipped with CNC machining centers, 5-axis milling machines, CNC lathes, and heavy-duty sawing systems support projects across multiple supply tiers:
Raw Material Stock: Standard uncut blocks supplied in full dimensions for customer in-house processing.
Cut-to-Size Blanks: Blocks pre-cut to specified external lengths, widths, and thicknesses to minimize material waste.
Drawing-Based Components: Finished or semi-finished parts produced strictly to customer 2D drawings or 3D CAD files.
Machining Considerations for Graphite:
Graphite is readily machinable but exhibits brittle characteristics. Tight tolerances, thin walls, deep pockets, or sharp internal corners require specialized tooling parameters to prevent chipping or edge breakout. Share your drawing early to optimize tool paths and edge breaks.
Typical Industrial Applications
Typical Industrial Applications
Heating elements, thermal insulation shields, structural supports, and hearth plates (subject to atmosphere and oxidation limits).
Sintering & Heat Treatment Tooling
Sintering boats, trays, dies, and spacers used in powder metallurgy and thermal processing.
Mechanical Wear Parts
Bearings, bushings, vanes, and seals (performance depends heavily on load, lubrication, and mating materials).
Custom Machined Fixtures
Tailored carbon-graphite jigs and fixtures for specialized manufacturing lines.
Quality Control & Inspection
Every block production batch undergoes strict internal control regarding dimensional accuracy and physical parameter consistency. Prior to shipment, verifications include:
- Dimensional checks against customer drawings or block tolerances.
- Visual inspection for structural integrity, cracks, and surface defects.
- Batch traceability linked to raw material records.
- Custom documentation support (Material Test Reports / Certificates of Conformance available upon request).
Frequently Asked Questions
Q: What is the difference between molded graphite and isostatic graphite?
A: Molded graphite uses compression molding, making it ideal for standard industrial components and cost-effective machining. Isostatic graphite uses hydrostatic pressure in all directions, yielding higher isotropic uniformity for high-precision or critical semiconductor applications.
Q: Can I order custom sizes instead of standard blocks?
A: Yes. Custom block dimensions can be cut to requirements, alongside finished parts machined directly from CAD models.
Q: What information is required to get an accurate quote?
A: Provide your target grade (or operating conditions if unsure), exact dimensions or 2D/3D drawings, required tolerances, estimated annual quantity, and destination port.
Q: How are graphite blocks packed for international shipping?
A: Blocks and machined parts are packed in fumigation-free wooden crates or sturdy export-grade cartons with internal cushioning to prevent chipping, breakage, and moisture contamination.
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