Riser Tubes Stalk Ceramic Pipes by Nitride Bonded SiC (silicon nitride silicon carbide):

max working temp 1450C ,

Material by NSiC, Si3N4-SiC, Sialon

Perfect resistance of Al, Zn, Cu..

Special for Low pressure Die Casting Machine, also work as thermocouple sheath.Size and shape is available by China SnDou SiC Ceramics manufacturer.
 

Nitride Bonded SiC (NSiC) ceramics, max 1450C working temp.
usually as kiln shelves, beams for tablewares & sanitary wares kiln furniture.
also as stalk riser tube, thermalcouple protection tubes (thermocouple sheath), heater protective tubes,crucibles for aluminum, Zinc, copper.. metallurgy fields.