High-strength silicon carbide graphite crucibles for melting aluminum, copper, gold, silver, brass, and other non-ferrous metals in induction, gas-fired, and resistance furnaces.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Max Service Temperature | 1400-1600°C (oxidizing); 1800°C+ (inert) | Temperature ceiling determines crucible material grade, glaze route, and expected service life per furnace type. |
| SiC Content | Reviewed by metal type and furnace duty | Higher SiC content improves mechanical strength and slag resistance but affects thermal conductivity balance. |
| Thermal Shock Resistance | Rated for rapid charge loading and water-quench cycles | Foundry crucibles must survive repeated fast heating and abrupt temperature drops without cracking. |
Decision fit
Foundry managers, casting engineers, and metal refinery procurement teams replacing crucibles on a regular consumption cycle.
Primary proof point
1400-1600°C (oxidizing); 1800°C+ (inert)
Temperature ceiling determines crucible material grade, glaze route, and expected service life per furnace type.
RFQ trigger
| Decision Gate | What Buyers Should Check | Acceptance Evidence |
|---|---|---|
| Use-case fit | Aluminum alloy melting and holding in die-casting foundries; Copper, brass, and bronze smelting in induction furnaces; Gold, silver, and precious metal refining and assay melting | Application, furnace duty, and buyer-side validation goal are confirmed before material or process route selection. |
| Parameter baseline | Max Service Temperature: 1400-1600°C (oxidizing); 1800°C+ (inert); SiC Content: Reviewed by metal type and furnace duty; Thermal Shock Resistance: Rated for rapid charge loading and water-quench cycles | Target ranges, report needs, and pass/fail criteria are written into the RFQ or sample approval plan. |
| Risk closure | Thermal shock cracking on first heat: Follow recommended preheating/tempering procedure to drive out absorbed moisture before charging molten metal.; Premature oxidation failure: Match crucible grade and glaze type to furnace atmosphere, peak temperature, and cycle frequency. | Drawing notes, inspection scope, cleaning, coating, packaging, and traceability controls are agreed before repeat supply. |
| RFQ completeness | Target metal or alloy (aluminum, copper, gold, brass, zinc, etc.); Furnace type: induction, gas-fired, resistance, or electric arc; Crucible size by capacity (kg of metal) or outer dimensions; Operating temperature range and heating/cooling cycle frequency | 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.
Our SiC-graphite crucibles are designed for non-ferrous metals including aluminum, copper, brass, bronze, gold, silver, zinc, tin, and lead alloys.
Specify your target metal, melt capacity in kilograms, furnace type, and pour method (lift-out, bale-out, or tilt). We recommend matching crucible volume to approximately 80% of rated metal capacity.
Yes. Our SiC-graphite crucibles work well in induction furnaces due to excellent thermal conductivity and electromagnetic transparency of the composite material.
