5000 Piece/Pieces per Month Protection Tubes sample order are available
Packaging & Delivery
1.inner foam with outter polywood case
2.inner foam with outter carton packaged on plastic pallet
Express Courier/ Air/Ocean Freight Service
silicon nitride ceramic tube for handling molten aluminium zinc tin and lead alloy
Kaixin Special Materials techonolgy Co.,Ltd.,, offers a family offoundry accessories made fromsilicon nitride, a high-strengthceramic material with excellentresistance to corrosion and hightemperatures. Silicon nitride is an extremely efficient material for temperaturemeasurement and control of aluminum and many nonferrous alloys. Silicon Nitride Thermocouple Protection Tubes exhibit excellentperformance under corrosive and abrasive conditions and very hightemperatures.
- Features -
Molten aluminum 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.
Density (g/cm3 )
Cold crushing strength
Highest use temperature in air (℃)
Highest use temperature in protective atmosphere(℃)
Cold bending strength (MPa)
High temperature bending strength(MPa)
Outside Diameter (mm), a
Inside Diameter (mm), b
Max. Length (mm), c
With circumferential flat bottomed or hemispherical groove on request. Other sizes and groove designs available on request.
We offer full ceramic and steel flange systems in both standard and custom sizes in order to provide the best adaptation to your furnace configuration.
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.
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
1.By sea / By air / By courier (DHL, UPS, TNT, FEDEX, EMS express are available )
2.As customized requirements
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.