Thermal Shock Resistant Silicon Carbide Graphite Crucible for Copper Melting 250kg and 350kg Sizes Refractory Sic Ceramic Material
Product Details:
Place of Origin: | China |
Brand Name: | Baidun/J&J |
Payment & Shipping Terms:
Minimum Order Quantity: | 1PC |
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Price: | negotiate |
Packaging Details: | Export Wooden Packing |
Payment Terms: | L/C,D/A,D/P,T/T |
Supply Ability: | 100pcs+ |
Detail Information |
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Style: | Conventional Type Crucible | Application: | Melting And Casting Of Non-ferrous Metals |
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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 | ||
Highlight: | Thermal Shock Resistant Sic Crucible,350kg Sic Ceramic Graphite Crucible |
Product Description
The Silicon Carbide Graphite (SiC Graphite) Crucible is a premium refractory vessel specifically engineered for the demanding process of copper melting and refining. The SiC-Graphite crucible offers the perfect blend of rapid heating, extreme durability, and resistance to thermal shock and oxidation, making it the premier choice for efficient and reliable copper melting operations.



- Exceptional Thermal Stability: Withstands the high temperatures (exceeding 1100°C) required for copper melting without deformation or cracking, even under rapid thermal cycling.
- Superior Oxidation Resistance: Highly resistant to oxidation in air at elevated temperatures, protecting the crucible integrity and minimizing contamination of the metal melt.
- High Thermal Conductivity: Ensures rapid and uniform heat distribution for efficient and energy-saving melting operations.
- Excellent Chemical Inertness: Demonstrates minimal reactivity with molten metals and common fluxes, preserving metal purity and minimizing metal loss through slag formation or crucible attack.

Name | SiC Graphite Crucible For Copper Melting | Category | Isostaic Graphite Crucible |
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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 |


Items | UNIT | Value |
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Carbon | % | 36~40 |
Sic | % | 26~30 |
SiO2 | % | 14~18 |
Si | % | 2~5 |
Al2O3 | % | 8~10 |
Na2O, K2O, Fe2O3, B2O3 & others | % | 2~4 |
Qingdao Baidun's SiC Graphite Crucibles deliver uncompromised performance in high-purity copper processing - where crucible failure risks catastrophic contamination. Engineered for extreme thermal cycling and aggressive metallurgical environments.
Applications: Ideal for foundries, jewelers, and metal casting operations melting copper, brass, bronze, and other non-ferrous metals in induction furnaces, fuel-fired furnaces, or resistance furnaces where high performance and crucible longevity are critical.
- Copper foundries & refineries
- Bronze sculpture casting
- Electrical component manufacturing
- Heat exchanger tube production
- Coinage/bullion minting
Metal Type | Max Temp (°C) | Performance Benefit |
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Gold/Silver | 1,100 | Zero contamination • Minimal precious metal loss |
Copper/Bronze | 1,300 | Resistance to CuO slag erosion |
Aluminum Alloys | 900 | Prevents Al penetration • Flux corrosion resistance |
Zinc/Tin/Lead | 750 | Longevity in low-melt applications |


Qingdao Baidun Special Ceramics Technology Co., LTD.(Qingdao Baidun) is located in the SCO Demonstration Area, Qingdao, China. Qingdao Baidun and its subsidiaries specialize in the manufacture of crucibles for non-ferrous metal smelting, refractory products for continuous casting and alumina grinding ball. It has a registered capital of 100 million RMB and covers an area of 100,000㎡.
Qingdao Baidun has two brands, "Baidun" and "J&J", which are respectively for Chinese and overseas markets. Qingdao Baidun is one of the largest crucible manufacturers in China that uses isostatic pressing technology to produce silicon carbide graphite crucibles and clay graphite crucibles.
With many years of research and field tests, the technical team of Qingdao Baidun has made significant efforts to solve various technical problems and developed silicon carbide graphite crucibles and clay graphite crucibles which have characteristics of high oxidation resistance, high thermal conductivity, long service life, and low energy consumption, increasing production efficiency and significantly reducing production costs for non-ferrous metal smelting companies.
Third-party professional institutions have selected Qingdao Baidun as the champion crucible brand in Chinese die-casting industry for many years since 2016.

J&J/Baidun Crucible is a top-quality product made in China, known for its high temperature resistance, chemical resistance, and durability. Composed of high pure materials such as SiC and clay, this crucible is designed for laboratory applications requiring reliable performance under extreme conditions.

Packing: Use professional export packaging, wooden box or wooden box packaging, cardboard, carton, ton bag, or packaging according to customer requirements.
Delivery time: 10-45 days after confirming the order, the specific delivery date should be determined according to the order quantity.
