GUOSHI ADVANCED MATERIALS
Ceramic parts
for industrial furnaces
Radiant tubes, riser tubes, protection tubes, burner tubes and expansion joint boards for industrial furnaces, made in Zibo, Shandong, China.
Product photograph, background edited
3D PRODUCT VIEW
Turn the Si₃N₄-bonded SiC radiant tubes in 3D
An outline sketch of the radiant tubes. Drag to turn them and look at the mounting flange, the tube body and the closed end.
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- [email protected]
- Telephone
- +86 533 5375177
- Address
- Zibo, Shandong Province, China
- Office hours
- Mon–Sat 08:00–17:30 (GMT+8)
Silicon nitride bonded SiC radiant tubes
Used mainly in degassing-box heating systems in the aluminium industry to protect SiC heating elements, with high thermal conductivity and long service life.
Loading the 3D sketch…
A 3D sketch of the outer form built from Guoshi’s photograph, not to scale. Dimensions and wall thickness follow the drawings Guoshi confirms.
01 / SPECIFICATIONS
Typical properties and sizes.
| Max continuous service temperature | 1350 °C reference; continuous and peak limits require confirmation. The 1600 °C brochure figure needs its operating conditions. |
|---|---|
| Bulk density | ≥ 2.65 g/cm³ |
| Apparent porosity | ≤ 5 % |
| Cold crushing strength | ≥ 170 MPa |
| Cold modulus of rupture | ≥ 30 MPa |
| SiC | ≥ 60 % |
| Si₃N₄ | ≥ 38 % |
| Fe₂O₃ | ≤ 1.5 % |
| Free Si | ≤ 1.0 % |
| Mohs hardness | ≈ 9 |
Also known as
- silicon nitride radiant tube
- silicon nitride products
- silicon nitride protection tube
- silicon nitride sheath
- silicon nitride heating tube
- silicon nitride heater protection tube
- silicon nitride heater sheath
- silicon nitride SiC heating element protection tube
- silicon nitride SiC heating element sheath
- SiC heating element protection tube
- SiC heating element sheath
- degassing unit protection tube
- degassing unit sheath
- inline degassing heater protection tube
- inline degassing heater sheath
- silicon nitride bonded SiC radiant tube
Names commonly used in the industry for this product and its same-material companion parts.
Outline drawing
Sketch drawn from Guoshi’s photograph, not to scale. The section shows the wall as a single layer. Dimensions are shown as symbols; values follow the drawings Guoshi confirms.
02 / MATERIAL & PROCESS
Silicon nitride bonded SiC radiant tubes
The material name describes both parts of the structure. Review the composition alongside the furnace duty, dimensions and acceptance criteria; the material name alone does not define the service limit.
- 01SiC aggregate + siliconMaterial composition and particle grading are part of the specification to discuss.
- 02Form the componentThe tube body and interfaces are defined by the part drawing and agreed dimensions.
- 03Nitride bondingDuring nitriding, silicon reacts with nitrogen to form the silicon nitride bond within the SiC structure.
- 04Confirm the specificationAgree the dimensions, property checks, acceptance criteria and documentation for the order.
03 / APPLICATIONS
Where it is used.
AVertical, through the cover
BHorizontal, through the side wall
- Guoshi product
- Refractory
- Steel shell
- Molten aluminium
Sketch of typical installations, not to scale and not of a particular customer’s plant. Guoshi parts are outlined in black and marked with a red leader.
Animated sketch of typical operating conditions, not of a particular customer’s plant. Equipment and sizes are not to scale.
- 01Degassing-box heating, aluminium industryFor the heating systems of degassing boxes.
- 02Protecting SiC heating elementsAs protection tubes for SiC heating elements.
ENQUIRY
Si₃N₄-bonded SiC radiant tube
Send the drawing, quantity or operating conditions you have, and Guoshi will reply by email.
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