Stopper supporting tundish zirconium nozzle

Stopper supporting tundish zirconium nozzle

The stopper rod supporting tundish zirconium nozzle is inlaid in the seat brick at the bottom of the tundish, and cooperates with the stopper rod to control the flow of molten steel. The nozzle of LMM series tundish has the characteristics of good erosion resistance, good thermal shock stability, anti-erosion and anti-clogging. With the integral plug rod produced by our company, it can significantly increase the number of tundish continuous casting furnaces.

Main physical and chemical indicators:



  body slag line   body slag line
chemical composition(%) AI2O3; ≥ 45 65 45
MgO; ≤ 60
SiO2; ≥ 15 10 15
C+SiC; ≥ 22 10 22 20
crushing strength, MPa,≥ 20 25 20 15
bending strength, (MPa),≥ 8 8 8 5
parent porosity, (%);≤ 18 16 18 19
Bulk Density, g/cm3,≥ 2.33 2.70 2.31 2.60
Thermal Shock Resistance, (1100℃),≥ 5 5


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As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time

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