• Technical Ceramics for the molten non-ferrous industry since 1986 | 40 years of excellence 1986-2026
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  • Copenhagen, Denmark
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Sialon Westofen Dosing Tubes
  • Sialon & Sintered Silicon Carbide Ceramics
  • Since 1986
Sialon Dosing Tubes | Silicon Nitride Dosing Tubes | Sialon Westofen Dosing Tubes | Westofen Dosing Tubes | Striko Westofen Dosing Tubes
striko westofen dosing tube

Sialon Westofen Dosing Tubes

Sialon Westofen Dosing Tubes

We manufacture Sialon dosing tubes for both Striko Westofen and Westomat dosing furnaces.

These dosing tubes offer a superior service life compared to Aluminium Titanate (AlTi) dosing tubes, which means considerably less downtime for manufacturing. With regards to Sialons, there is substitution of silicon by aluminum with corresponding atomic (melting temperature of aluminum) replacement of nitrogen by oxygen, to satisfy valency requirements. The resulting ‘solution’ has superior properties to the original pure solvent, syalon, silicon nitride or Si3N4. Silicon Nitride like Sialon ceramics have found extensive use in non-ferrous molten metal handling, particularly aluminum and its alloys, including metal feed tubes for aluminum die casting, burner and immersion heater tubes, injector and degassing for non-ferrous metals, thermocouple protection tubes, crucibles and ladles.
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Product Description

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Sialon Westofen Dosing Tubes for Striko Westomat Furnaces – Superior Lifespan vs Aluminium Titanate, 2–3 Years Service, 12-Month Warranty.

Sialon Westofen Dosing Tubes are premium silicon nitride-based ceramic tubes specially manufactured for Striko Westofen and Westomat dosing furnaces in the molten non-ferrous industry (primarily aluminium at 660.3 °C melting point). They provide dramatically longer service life than standard Aluminium Titanate (AlTi) tubes, virtually eliminating clogging and reducing manufacturing downtime to a minimum.

Developed specifically to solve the short lifespan and frequent clogging problems of AlTi tubes in clean, closed Westomat systems, these low-thermal-conductivity Sialon tubes allow easy setup, operation and integration into any die casting or gravity casting line. The Westomat removes metal below the bath surface, preventing contamination – Sialon dosing tubes enhance this clean process with non-wetting surfaces, zero water absorption and outstanding corrosion/erosion resistance. Customers routinely report 2–3 years continuous service with minimal cleaning. Compatible with Sialon Immersion Heaters for furnace heating, ultrasonic degassing and hydrogen measurement devices.

Sialon’s unique composition (partial substitution of silicon by aluminium and nitrogen by oxygen) delivers superior properties over pure Si₃N₄: high strength, thermal shock resistance and durability in aggressive molten aluminium environments. Full technical specifications (ULTRA™ grades):

  • Bulk density: 3.1–3.3 g/cm³
  • Water absorption: 0 %
  • Flexural strength: 580–1,020 MPa
  • Vickers hardness: 12.7–15.0 GPa
  • Fracture toughness: 4–7 MPa·m¹/²
  • Young’s modulus: 270–300 GPa
  • Coefficient of linear thermal expansion (40–800 °C): 3.2–3.5 ×10⁻⁶/°C
  • Thermal conductivity (20 °C): 23–54 W/(m·K)
  • Heat shock resistance: 550–900 °C
  • Volume resistivity (20 °C): >10¹⁴ Ω·cm

Since 1986, these tubes have been the preferred choice for foundries seeking maximum reliability, lowest maintenance and best price/performance. View Sialon Westofen Dosing Tubes – custom lengths, diameters and mounting options available on request. Standard 12-month warranty against chemical attack.

Material data sheet Sialon (Si3Al3O3N5)

Typical Sialon ULTRA™ grades

 ULTRA-001 ULTRA-002 ULTRA-003 ULTRA-004
Bulk Density g/cm3 3.2 3.1 3.3 3.2
Water Absorption ％ 0 0 0 0
Flexural Strength MPa 580 900 1,020 790
Vickers Hardness HV1 GPa 13.9 12.7 15.0 13.8
Fracture Toughness （SEPB） MPam1/2 4 ～ 5 6 ～ 7 7 6 ～ 7
Young’s Modulus of Elasticity GPa 290 270 300 290
Poisson’s Ratio – 0.28 0.28 0.28 0.28
Coefficient of Linear Thermal (40 – 800 °C)
Expansion		 ×10-6/℃ 3.2 3.4 3.3 3.5
Thermal Conductivity （20℃） W/(m・k) 25 23 27 54
Specific Heat J/(g・k) 0.64 0.66 0.65 0.66
Heat Shock Resistance ℃ 550 800 800 900
Volume Resistivity （20℃） Ω・cm >1014 >1014 >1014 >1014

All XICRU Crucibles

loader-icon

Sialon Westofen Dosing Tubes for Striko Westomat Furnaces – Superior Lifespan vs Aluminium Titanate, 2–3 Years Service, 12-Month Warranty.

Sialon Westofen Dosing Tubes are premium silicon nitride-based ceramic tubes specially manufactured for Striko Westofen and Westomat dosing furnaces in the molten non-ferrous industry (primarily aluminium at 660.3 °C melting point). They provide dramatically longer service life than standard Aluminium Titanate (AlTi) tubes, virtually eliminating clogging and reducing manufacturing downtime to a minimum.

Developed specifically to solve the short lifespan and frequent clogging problems of AlTi tubes in clean, closed Westomat systems, these low-thermal-conductivity Sialon tubes allow easy setup, operation and integration into any die casting or gravity casting line. The Westomat removes metal below the bath surface, preventing contamination – Sialon dosing tubes enhance this clean process with non-wetting surfaces, zero water absorption and outstanding corrosion/erosion resistance. Customers routinely report 2–3 years continuous service with minimal cleaning. Compatible with Sialon Immersion Heaters for furnace heating, ultrasonic degassing and hydrogen measurement devices.

Sialon’s unique composition (partial substitution of silicon by aluminium and nitrogen by oxygen) delivers superior properties over pure Si₃N₄: high strength, thermal shock resistance and durability in aggressive molten aluminium environments. Full technical specifications (ULTRA™ grades):

  • Bulk density: 3.1–3.3 g/cm³
  • Water absorption: 0 %
  • Flexural strength: 580–1,020 MPa
  • Vickers hardness: 12.7–15.0 GPa
  • Fracture toughness: 4–7 MPa·m¹/²
  • Young’s modulus: 270–300 GPa
  • Coefficient of linear thermal expansion (40–800 °C): 3.2–3.5 ×10⁻⁶/°C
  • Thermal conductivity (20 °C): 23–54 W/(m·K)
  • Heat shock resistance: 550–900 °C
  • Volume resistivity (20 °C): >10¹⁴ Ω·cm

Since 1986, these tubes have been the preferred choice for foundries seeking maximum reliability, lowest maintenance and best price/performance. View Sialon Westofen Dosing Tubes – custom lengths, diameters and mounting options available on request. Standard 12-month warranty against chemical attack.

Material data sheet Sialon (Si3Al3O3N5)

Typical Sialon ULTRA™ grades

 ULTRA-001 ULTRA-002 ULTRA-003 ULTRA-004
Bulk Density g/cm3 3.2 3.1 3.3 3.2
Water Absorption ％ 0 0 0 0
Flexural Strength MPa 580 900 1,020 790
Vickers Hardness HV1 GPa 13.9 12.7 15.0 13.8
Fracture Toughness （SEPB） MPam1/2 4 ～ 5 6 ～ 7 7 6 ～ 7
Young’s Modulus of Elasticity GPa 290 270 300 290
Poisson’s Ratio – 0.28 0.28 0.28 0.28
Coefficient of Linear Thermal (40 – 800 °C)
Expansion		 ×10-6/℃ 3.2 3.4 3.3 3.5
Thermal Conductivity （20℃） W/(m・k) 25 23 27 54
Specific Heat J/(g・k) 0.64 0.66 0.65 0.66
Heat Shock Resistance ℃ 550 800 800 900
Volume Resistivity （20℃） Ω・cm >1014 >1014 >1014 >1014

Product Description

loader-icon

Sialon Westofen Dosing Tubes for Striko Westomat Furnaces – Superior Lifespan vs Aluminium Titanate, 2–3 Years Service, 12-Month Warranty.

Sialon Westofen Dosing Tubes are premium silicon nitride-based ceramic tubes specially manufactured for Striko Westofen and Westomat dosing furnaces in the molten non-ferrous industry (primarily aluminium at 660.3 °C melting point). They provide dramatically longer service life than standard Aluminium Titanate (AlTi) tubes, virtually eliminating clogging and reducing manufacturing downtime to a minimum.

Developed specifically to solve the short lifespan and frequent clogging problems of AlTi tubes in clean, closed Westomat systems, these low-thermal-conductivity Sialon tubes allow easy setup, operation and integration into any die casting or gravity casting line. The Westomat removes metal below the bath surface, preventing contamination – Sialon dosing tubes enhance this clean process with non-wetting surfaces, zero water absorption and outstanding corrosion/erosion resistance. Customers routinely report 2–3 years continuous service with minimal cleaning. Compatible with Sialon Immersion Heaters for furnace heating, ultrasonic degassing and hydrogen measurement devices.

Sialon’s unique composition (partial substitution of silicon by aluminium and nitrogen by oxygen) delivers superior properties over pure Si₃N₄: high strength, thermal shock resistance and durability in aggressive molten aluminium environments. Full technical specifications (ULTRA™ grades):

  • Bulk density: 3.1–3.3 g/cm³
  • Water absorption: 0 %
  • Flexural strength: 580–1,020 MPa
  • Vickers hardness: 12.7–15.0 GPa
  • Fracture toughness: 4–7 MPa·m¹/²
  • Young’s modulus: 270–300 GPa
  • Coefficient of linear thermal expansion (40–800 °C): 3.2–3.5 ×10⁻⁶/°C
  • Thermal conductivity (20 °C): 23–54 W/(m·K)
  • Heat shock resistance: 550–900 °C
  • Volume resistivity (20 °C): >10¹⁴ Ω·cm

Since 1986, these tubes have been the preferred choice for foundries seeking maximum reliability, lowest maintenance and best price/performance. View Sialon Westofen Dosing Tubes – custom lengths, diameters and mounting options available on request. Standard 12-month warranty against chemical attack.

Material data sheet Sialon (Si3Al3O3N5)

Typical Sialon ULTRA™ grades

 ULTRA-001 ULTRA-002 ULTRA-003 ULTRA-004
Bulk Density g/cm3 3.2 3.1 3.3 3.2
Water Absorption ％ 0 0 0 0
Flexural Strength MPa 580 900 1,020 790
Vickers Hardness HV1 GPa 13.9 12.7 15.0 13.8
Fracture Toughness （SEPB） MPam1/2 4 ～ 5 6 ～ 7 7 6 ～ 7
Young’s Modulus of Elasticity GPa 290 270 300 290
Poisson’s Ratio – 0.28 0.28 0.28 0.28
Coefficient of Linear Thermal (40 – 800 °C)
Expansion		 ×10-6/℃ 3.2 3.4 3.3 3.5
Thermal Conductivity （20℃） W/(m・k) 25 23 27 54
Specific Heat J/(g・k) 0.64 0.66 0.65 0.66
Heat Shock Resistance ℃ 550 800 800 900
Volume Resistivity （20℃） Ω・cm >1014 >1014 >1014 >1014

XICAR™ Sintered Silicon Carbide Products

loader-icon

Sialon Westofen Dosing Tubes for Striko Westomat Furnaces – Superior Lifespan vs Aluminium Titanate, 2–3 Years Service, 12-Month Warranty.

Sialon Westofen Dosing Tubes are premium silicon nitride-based ceramic tubes specially manufactured for Striko Westofen and Westomat dosing furnaces in the molten non-ferrous industry (primarily aluminium at 660.3 °C melting point). They provide dramatically longer service life than standard Aluminium Titanate (AlTi) tubes, virtually eliminating clogging and reducing manufacturing downtime to a minimum.

Developed specifically to solve the short lifespan and frequent clogging problems of AlTi tubes in clean, closed Westomat systems, these low-thermal-conductivity Sialon tubes allow easy setup, operation and integration into any die casting or gravity casting line. The Westomat removes metal below the bath surface, preventing contamination – Sialon dosing tubes enhance this clean process with non-wetting surfaces, zero water absorption and outstanding corrosion/erosion resistance. Customers routinely report 2–3 years continuous service with minimal cleaning. Compatible with Sialon Immersion Heaters for furnace heating, ultrasonic degassing and hydrogen measurement devices.

Sialon’s unique composition (partial substitution of silicon by aluminium and nitrogen by oxygen) delivers superior properties over pure Si₃N₄: high strength, thermal shock resistance and durability in aggressive molten aluminium environments. Full technical specifications (ULTRA™ grades):

  • Bulk density: 3.1–3.3 g/cm³
  • Water absorption: 0 %
  • Flexural strength: 580–1,020 MPa
  • Vickers hardness: 12.7–15.0 GPa
  • Fracture toughness: 4–7 MPa·m¹/²
  • Young’s modulus: 270–300 GPa
  • Coefficient of linear thermal expansion (40–800 °C): 3.2–3.5 ×10⁻⁶/°C
  • Thermal conductivity (20 °C): 23–54 W/(m·K)
  • Heat shock resistance: 550–900 °C
  • Volume resistivity (20 °C): >10¹⁴ Ω·cm

Since 1986, these tubes have been the preferred choice for foundries seeking maximum reliability, lowest maintenance and best price/performance. View Sialon Westofen Dosing Tubes – custom lengths, diameters and mounting options available on request. Standard 12-month warranty against chemical attack.

Material data sheet Sialon (Si3Al3O3N5)

Typical Sialon ULTRA™ grades

 ULTRA-001 ULTRA-002 ULTRA-003 ULTRA-004
Bulk Density g/cm3 3.2 3.1 3.3 3.2
Water Absorption ％ 0 0 0 0
Flexural Strength MPa 580 900 1,020 790
Vickers Hardness HV1 GPa 13.9 12.7 15.0 13.8
Fracture Toughness （SEPB） MPam1/2 4 ～ 5 6 ～ 7 7 6 ～ 7
Young’s Modulus of Elasticity GPa 290 270 300 290
Poisson’s Ratio – 0.28 0.28 0.28 0.28
Coefficient of Linear Thermal (40 – 800 °C)
Expansion		 ×10-6/℃ 3.2 3.4 3.3 3.5
Thermal Conductivity （20℃） W/(m・k) 25 23 27 54
Specific Heat J/(g・k) 0.64 0.66 0.65 0.66
Heat Shock Resistance ℃ 550 800 800 900
Volume Resistivity （20℃） Ω・cm >1014 >1014 >1014 >1014

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Why Us?

Reasonable delivery times

We ship usually within 4 weeks

12 months warranty

In molten aluminium baths

24/7 Support

Since 1986

Quality environmental system ISO 14001
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Technical Ceramics since 1986

Sialon Products

XICAR™ Sintered Silicon Carbide

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+(46) 31 754 0790

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+(45) 35 15 8085

USA/Canada Tollfree

+ 1 (833) 709-1399

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