Product Description:
Silicon Carbide Graphite Crucible for Copper Melting
The Silicon Carbide Graphite (SiC Graphite) Crucible is a premium refractory vessel specifically engineered for the
demanding process of Copper melting and refining.
Manufactured using advanced isostatic pressing technology, this crucible combines high-purity silicon carbide particles
within a graphite matrix. This unique composite structure delivers
the critical properties essential for handling molten gold:
Product Features:
1.Exceptional Thermal Stability: Withstands the high temperatures (exceeding 1100°C ) required for
gold melting without deformation or cracking, even under rapid
thermal cycling.
2.Superior Oxidation Resistance: Highly resistant to oxidation in air at elevated temperatures,
protecting the crucible integrity and minimizing contamination of
the precious metal melt.
3.High Thermal Conductivity: Ensures rapid and uniform heat distribution for efficient and
energy-saving gold melting operations.
4.Excellent Chemical Inertness: Demonstrates minimal reactivity with molten gold and common
fluxes, preserving gold purity and minimizing metal loss through
slag formation or crucible attack.
Product Details:
Name | SiC Graphite Crucible For Copper 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
Items | UNIT | Value |
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.
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.
Industry Applications
Copper foundries & refineries
Bronze sculpture casting
Electrical component manufacturing
Heat exchanger tube production
Coinage/bullion minting
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.
