silicon carbide heater protection tube

Our product is designed for smelting or casting of molten aluminum, aluminium alloys, magnesium alloys, zinc and copper alloys.

a. High density, high mechanical strength

b. Excellent thermal conductivity, low thermal expansion

c. High washing resistance, oxidation resistance, acid resistance and thermal shock resistance

d. Low wettability with the melts, bring minimum impurities to the melts

e. High cost performance, long service life.

Also we can supply Si3N4 (SSN, RBSN, G.P.S-SN, HPSN), O’-SiAlON tubes. Please contact us if interested.

Available Size & Types ID max: Φ220 mm, Length max: 1700 mm

Vertical type (metal flange type, one body type), horizontal type and pencile type.

Applications

Low pressure die casting and counter pressure die casting of molten aluminum, aluminum alloys, magnesium alloys and copper alloys; zinc smelting.

Typical chemical analysis: SiC: > 72.00%; Si3N4: >25.00%; Free-Si: < 0.20%; Fe2O3: < 0.15%.

Typical Technical Data Porosity: < 11%

Bulk Density: > 2.60 g/cm3

Compressive Strength: > 175 MPa

Flexural Strength: > 70 MPa

Thermal Conductivity (1400 °C): > 16.5 × 10-6 W/ (m•°C)

Thermal Expansion (20℃-1400 °C): < 4.0 × 10-6/ °C

Maximum Working Temperature: 1550 °C.