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| Brand Name : | Baidun/J&J |
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| Payment Terms : | L/C,D/A,D/P,T/T |
| Supply Ability : | 2000pcs/month |
Silicon carbide-graphite composite crucibles are advanced refractory vessels engineered by combining silicon carbide (SiC) and graphite materials. This hybrid design leverages the strengths of both components, resulting in a crucible that offers exceptional performance, durability, and efficiency for zinc melting applications. These crucibles are widely used in industries such as die-casting, galvanizing, and zinc alloy production, where reliability and longevity are critical.
| Attribute | Value |
|---|---|
| Style | Conventional type Crucible |
| Application | Melting and casting of non-ferrous metals |
| Surface Finish | Smooth |
| Country Of Origin | China |
| Material | Silicon Carbide and Graphite |
| Shape | Cylindrical |
| Corrosion Resistance | Good |
| Thermal Conductivity | High |
| Density | 2.21-2.25 g/cm3 |

Extended Service Life
The combination of silicon carbide’s hardness and graphite’s lubricity results in a crucible that resists wear, erosion, and thermal fatigue, significantly outperforming traditional graphite or clay-bonded crucibles.
Energy Efficiency
High thermal conductivity reduces melting time and energy consumption, lowering operational costs and environmental impact.
Optimized Melt Quality
The non-reactive nature of silicon carbide prevents contamination of molten zinc, ensuring high-purity outputs suitable for precision applications like Zamak alloy production.
Versatility and Reliability
Suitable for both batch and continuous melting processes, these crucibles perform consistently in high-temperature environments (zinc melting point: ~420°C).
Cost-Effectiveness
While the initial investment is higher than standard graphite crucibles, the extended lifespan and reduced downtime result in a lower total cost of ownership.

| Name | SiC Graphite Crucible For Zinc Melting | Category | Isostaic Graphite Crucible |
|---|---|---|---|
| Material | Silicon Carbide And Graphite | Brand | Baidun/J&J |
| Place of Origin | ShanDong, China | Application | Melting And Holding Of Non-ferrous Metals |
| Applicable target | Oil Furnace, Gas Furnace, Coal Furnace, Flame Furnace, Electric Furnace | Style | Conventional Type Crucible |
| Maximum working Temperature | 1600℃ | Melting Metal | Non-ferrous metals |

| Property | SiC-Graphite Composite | Pure Graphite | Pure Silicon Carbide |
|---|---|---|---|
| Thermal Conductivity | Excellent | Highest | Very High |
| Mechanical Strength | High | Low (Brittle) | Highest |
| Thermal Shock Resistance | Excellent | Good | Superior |
| Corrosion Resistance | Excellent | Good (with glaze) | Exceptional |
| Lifespan | Longest | Short to Medium | Long |
| Cost Efficiency | High (long-term) | Medium | High |
Zinc Die-Casting: High-purity melting with minimal iron contamination.
Galvanizing: Efficient melting for continuous coating processes.
Zinc Alloy Production: Reliable performance for specialized alloys (e.g., Zamak 3, Zamak 5).
High-Throughput Foundries: Suitable for 24/7 operations with minimal downtime.




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| Company Info. |
| Qingdao Baidun Special Ceramics Technology Co., Ltd. |
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