Dense, uniform isostatic graphite crucibles machined for stable high-temperature crystal growth and vacuum furnace duty.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Bulk Density | Approx. 1.80-1.90 g/cm3 by grade | Uniform density helps stabilize heat transfer and mechanical strength during repeated cycles. |
| Machining Tolerance | Project-dependent; tight features reviewed by drawing | Crucible fit, lid sealing, and concentricity affect vapor containment and assembly repeatability. |
Decision fit
Furnace builders and crystal growth teams replacing consumable graphite crucible sets by drawing.
Primary proof point
Approx. 1.80-1.90 g/cm3 by grade
Uniform density helps stabilize heat transfer and mechanical strength during repeated cycles.
RFQ trigger
| Decision Gate | What Buyers Should Check | Acceptance Evidence |
|---|---|---|
| Use-case fit | SiC PVT crucible assemblies; Vacuum furnace graphite consumables; Crystal growth R&D furnaces | Application, furnace duty, and buyer-side validation goal are confirmed before material or process route selection. |
| Parameter baseline | Bulk Density: Approx. 1.80-1.90 g/cm3 by grade; Machining Tolerance: Project-dependent; tight features reviewed by drawing | Target ranges, report needs, and pass/fail criteria are written into the RFQ or sample approval plan. |
| Risk closure | Grade mismatch: Review furnace duty, purity target, dimensions, and replacement cycle before quoting material grade.; Assembly interference: Confirm mating dimensions and tolerance stack-up across body, lid, sleeve, and holder drawings. | Drawing notes, inspection scope, cleaning, coating, packaging, and traceability controls are agreed before repeat supply. |
| RFQ completeness | 2D drawing or STEP file for each crucible part; Target isostatic graphite grade or density range; Operating temperature, atmosphere, and furnace interface; Thread, groove, lid, liner, and holder tolerance callouts | Engineering can return a quote direction without avoidable loops for drawing, purity, coating, quantity, or delivery gaps. |
Confirm furnace duty, drawing revision, target purity, operating atmosphere, and replacement cycle before material selection.
Match isostatic graphite grade, purification depth, coating route, and machining allowance to the process risk.
Machine graphite bodies, lids, rings, heaters, carriers, and insulation interfaces against the approved drawing pack.
Align dimensional checks, purity report format, cleaning, vacuum sealing, cushioning, and crate requirements before shipment.
Review how crucibles, hot-zone parts, and insulation fit a PVT growth workflow.
Check the factory workflow for drawing-based graphite part production.
Align inspection reports, sealing, cushioning, and export crate expectations.
Open the related page to continue technical qualification.
Open the related page to continue technical qualification.
Inquiry Email
Attach DWG, STEP, or PDF drawings and include purity, tolerance, quantity forecast, and delivery country.
Instant Chat
+8618857971991
Use WhatsApp for quick engineering clarification before a formal quote.
Isostatic graphite offers more uniform structure and properties, which is valuable for high-temperature crucibles with tight dimensional and thermal requirements.
Yes. We can review and machine crucible bodies, lids, sleeves, liners, rings, and holders based on customer drawings.
