About Dalian Horton

HORTON Group, with more than 25 years experience in Metallurgy field, is dedicated to supplying top quality products in the Steel and Foundry Industry. Horton could provide quality products, expert technical support and high level of service for the customers worldwide. HORTON offers solution service for steel and Metallurgy industry. The main products we can offer include:Graphite Electrodes, Special Graphite Products, Various Refractory Bricks, Monolithic Refractory, Stopper Rods, Ladle Shroud, Nozzels, Casting Rolls for Rolling Mill, Tungsten Carbide Rings and Composite Rolls, Ceramic Rolls, Various type of Bearings, Casting and Mechanical Components, Special Casting Sands (Ceramsite), Investment Casting etc.All our products are manufactured to meet stringent ISO requirements. We have successfully cooperated with a large number of customers at home and abroad. We, wholeheartedly welcome friends of related fields from all over the world to contact with us. Your production need have been our first priority. We are proud to place our expertise, our skill and our facility at your service. Our ultimate goal is the pursuit of your satisfaction!
Tundish Upper Nozzle

Stopper system is normally used in tundish for con-casting of slab and bloom. Through adjusting the slot between the stopper and the upper nozzle, the steel flowing rate could be controlled. During the casting, there will be some erosion on the stopper and upper nozzle. So the quality of the upper nozzle is very important to tundish life.

The Horton series of upper nozzles with ZrO2 Insert feature high refractoriness, superior resistance to thermal shock, erosion/corrosion etc. Fitting together with Horton serial of ladle shroud, stopper and SEN, tundish casting sequences will be remarkablely improved. The products have been used in decades of steelworks worldwide, gain high customer satisfaction.

Upper Nozzle-Insert
ZrO2 % Min. 64 69 79 93 94
Bulk Density g/cm3   Min. 3.6 3.7 3.9 4.3 4.3
Apparent Porosity %  Max. 23 23 23 21 21
Cold Crushing Strength MPa Min. 80 80 80 100 100
Refractoriness  ℃ Min. 1790 1790 1790 1790 1790

Upper Nozzle-Body
Al2O3 %  Min. 65 75 65 80
MgO %  Min.     10  
C %  Min.     3 3
Bulk Density g/cm3 Min. 2.3 2.4 2.9 3.0
Apparent Porosity % Max. 25 25 10 10
Cold Crushing Strength MPa Min. 60 60 40 60