Silicon nitride's excellent thermal shock resistance and high-temperature strength enable it to resist erosion when exposed to molten aluminum, making it an ideal material for use in low-pressure casting smelter parts, pipes, molten-metal pumps and related applications.
Product Outline
Features
·
High thermal shock resistance
·
Low welting to aluminum
·
High mechanical strength at high temperature
Applications
·
Stalk
·
Heater Protection Tube
·
Degassing Pipe
·
Fixtures for wetting process
Product Characteristics
Material Characteristics
Items
Units
KYOCERA
SN240
SN220
Flexural Strength
(3 Point Bending)
MPa
1,020
610
Thermal Conductivity
W/(m·K)
26
20
Poisson's Ratio
-
0.27
0.28
Young's Modulus
GPa
300
290
Coefficient of Linear
+ Expansion
(~800°C)
×10-6/K
3.4
3.2
Heat Shock Resistance
K
800
550
Chemical Resistance for Molten Aluminum
Good (*)
Good (*)
* After dipped into ADC 12-700°C×1000Hr smelter, then washed by HCL. There is no decrease in volume.
Japanese
