Silicon Carbide Graphite Crucible
Product Attributes
| Attribute | Value |
|---|
| Style | Gold Melting 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 |
Product Description
Silicon Carbide Graphite (SiC-Graphite) crucibles are advanced composite ceramics engineered for high-temperature melting of precious metals
(especially gold, silver, platinum). They combine silicon carbide (SiC) and
graphite via processes like isostatic pressing and high-temperature sintering, creating a material that overcomes the limitations of pure
graphite or SiC crucibles.
Advanced SiC-Graphite Crucible for Gold Melting
Material: Engineered composite of high-purity Silicon Carbide (SiC) and synthetic Graphite, leveraging synergistic high-temperature properties.
Manufacturing: Hot Isostatic Pressing (HIP) technology achieving near-theoretical density (>99%),
defect-free structure, and ultimate mechanical strength.
Structure: Isotropic, ultra-dense, pore-free microstructure ensuring uniform thermal management for molten gold (m.p. 1064°C).
Surface: Glassy SiC-rich barrier layer with near-zero metal adhesion, reducing gold losses to <0.005%
per pour.
Primary Application: Precision-engineered for melting, refining, and casting pure gold (Au), karat alloys, and
precious metal blends, meeting extreme purity requirements (>99.99%) in jewelry,
bullion, and e-waste recycling.
Product Features
Extreme Temperature Resistance
Withstands gold’s melting point (1,064°C) and beyond (up to 1,600–1,800°C).
Minimal thermal deformation.
Superior Thermal Conductivity
Exceptional Thermal Shock Resistance
Survives direct quenching (e.g., hot crucible → cold water) without cracking.
Critical for jewelry workshops and recycling.
Chemical Inertness
Resists reaction with molten gold, silver, or fluxes (e.g., borax),
preserving metal purity.
Product Details
| Name | SiC Graphite Crucible For Gold 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 |
Product Chemical Composition
Application
They can be used for resistance furnace, induction furnace,
biological particles furnace, gas furnace, coke oven, furnace oil,
and gas furnace to melt gold, silver, copper, aluminum, tin, lead,
zinc and other nonferrous metals, and various non-ferrous alloys.
Industrial Applications
Bullion Production: High-yield melting of 1-100kg silver bars.
Jewelry Casting: Contamination-free melting for investment casting.
Silver Recycling: Corrosion resistance against metallic impurities (Cu, Zn, Pb).
Continuous Operations: 24/7 furnace compatibility with minimal degradation.
Metal Compatibility Chart
| Metal Type | Max Temp (°C) | Performance Benefit |
|---|
| 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 |
Factory Introduction
Qingdao Baidun Special Ceramics Technology Co., LTD.(Qingdao
Baidun) is located in the SCO Demonstration Area,Qinadao,China,
Qinadao Baidun and it's subsidiaries specializes in the manufacture
of crucibles for non-ferrous metal smelting, refractory products
for continuous casting and alumina grinding ball. lt has a
registered capital of 100milion RMB and covers an area of 100,000㎡.
Qinadao 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 ofresearch
and field tests, the technical team of Qinadao Baidun has made
sianificant efforts tosolve 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 Qinadao Baidun as the champion crucible brandin 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.
Packaging & Shipping
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 and order quantity.
FAQ
Q: What is the brand name of the Conventional Type Crucible?
A: The brand name is J&J/Baidun.
Q: Where is the Conventional Type Crucible manufactured?
A: The Conventional Type Crucible is manufactured in Qingdao,
China.
Q: What is the minimum order quantity for the Conventional Type
Crucible?
A: The minimum order quantity is 1pc.
Q: What are the packaging details for the Conventional Type
Crucible?
A: The packaging details include wooden cases.
Q: What are the accepted payment terms for purchasing the
Conventional Type Crucible?
A: The accepted payment terms are TT/DP/LC.
