Good oxidation Resistance Silicon Nitride Heat Resistant Ceramic Tube

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US $619-4,000 / Piece | 1 Piece/Pieces (Min. Order)
Supply Ability:
5000 Piece/Pieces per Month
Express Courier/ Air/Ocean Freight Service
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Quick Details
Place of Origin:
Hunan, China (Mainland)
Ceramic Tubes, Silicon Nitride Heat Resistant Ceramic Tube
Structure Ceramic
Alumina Ceramic
Model Number:
Brand Name:
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Packaging & Delivery
Packaging Details
1.inner foam with outter polywood case
2.inner foam with outter carton packaged on plastic pallet
Delivery Time
20 work days after confirm the deposit

Good Oxidation Resistance Silicon Nitride Heat Resistant Ceramic Tube

Product Description

Riser Tubes offer long service lifetimes, due to good thermal shock resistance and good corrosion resistance. This extended service life translates to longer intervals between cleaning and less production downtime for tube removal and replacement.


Features and Benefits

 • Gas-tight

• Long life >12 months

• Unaffected by corrosion

• No melt contamination

• Can be used in melts containing sodium and strontium

• Resists build-up of dross

• High temperature resistance up to 1,300°C

• High thermal shock resistance

• No preheating required at operation temperatures below 900°C

• Easy cleaning of bake-on • Best price/performance ratio





Our product




Density (g/cm3 )



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Detailed Images


Important notice on handling

1. Avoid to give mechanical shock on tube. No hammering is allowed, and adhered aluminum should be removed by scraping or grinding. 

2. No preheating on drying process before usage and on starting operation are required Immerse slowly into liquid after wiping off water on tube surface.

3.Partial heating by burner or rapid cooling by water should be absolutely avoided in order to minimize thermal shock. Partial abrupt thermal shock causes breakage of tube







Molten aluminium is processed at temperatures between 680°C and 800°C. In low pressure casting, the melt flows through a riser tube.The tube material should have sufficient mechanical stability to withstand the stresses of operation. In addition, the material must be resistant to chemical attack by the melt, and must not contaminate
the melt with loose particles.


About silicon nitride 

Sintered Silicon Nitride is a sintered grade of silicon nitride.The primary applications are long tubes such as thermocouple protection tubes and heat riser tubes, both used in the aluminum and non-ferrous alloy industries. This material has excellent
temperature response, is unaffected by corrosion, and is gas tight.


Kaixin advanced ceramic products are manufactured at ISO 9001 certified facilities. Our manufacturing processes are optimized for quality, efficiency and consistency – helping ensure reliable and repeatable product performance



Materials Of Service Life Comparison

Properties of materials commonly used for processing molten aluminum

Materials of Consumption cost comparison



Packaging & Shipping


We ensure to offer safe package and fast delivery for all our customers .

1.for big size cylinders : plastic pallet

2.for small size cylinders :polywood case with inner foam


Shipping :

1.By sea / By air / By courier (DHL, UPS, TNT, FEDEX, EMS express are available )

2.As customized requirements

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Company Information

Hengyang Kaixin established in June,2013, is specialized in designing and manufacturing of special ceramic material products.Our main product like Silicon nitride stalk,thermocouple protective tube,plunger,crucible,milling ball,industrial heating rod,radiant tube,electrode protection cover,which are widely used in military project,aerospace and navigation,smelt,chemical industry,electronics,medicine.


Through years of research and development and technology accumulation,the mature modern production line have been gradually established, to internationalize the high purity silicon nitride special ceramic materials as our own task,we give full play to the advantages of technology and repay the society with high quality products and satisfactory service.

In a policy of 'Careful Design, Sincere Service, International Level and Customer First', we provide high-quality products and services for the customers.We sincerely welcome friends at home or abroad to visit and seek mutual development.