Product Description:
Silicon Carbide Graphite Crucible for Copper Melting
A Silicon Carbide Graphite (SiC-Graphite) Crucible is a
high-performance refractory vessel specifically engineered for
melting metals with demanding requirements, such as copper and its
alloys (brass, bronze).
It combines the exceptional properties of silicon carbide (SiC) – offering outstanding hardness, high-temperature strength, and
excellent resistance to oxidation, abrasion, and thermal shock –
with graphite – providing superior thermal conductivity and lubricity.
Product Features:
- High Thermal Conductivity & Rapid Melting: Graphite ensures efficient heat transfer from the furnace to the
charge, significantly speeding up melting cycles for copper.
- Superior Thermal Shock Resistance: The SiC matrix provides exceptional resistance to cracking caused
by rapid temperature changes, a common occurrence during charging,
pouring, or furnace cycling.
- Excellent Oxidation Resistance: SiC forms a protective oxide layer, greatly slowing crucible
degradation in the oxidizing atmosphere often present during copper
melting.
- Enhanced Durability & Long Life: Resists erosion from molten copper and slag, withstands thermal
cycling better than clay-graphite crucibles, and minimizes carbon
pickup into the melt compared to pure graphite crucibles. This
results in a significantly longer service life.
- Good Chemical Resistance: Resists attack from fluxes and oxides commonly encountered in
copper melting.
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.
