Submerged nozzle

The products of LMM Group have been exported to more than 90 countries, countries & areas in America, Europe, Southeast Asia, the Middle East, Africa, Asia, etc, forming strong and core competitiveness in steelmaking, continuous casting, rolling areas to supply high value-added, green, intelligent and one-stop solution and service to global customers in iron, steel, metallurgical industries, etc.

Please provide design data for special processing requirements

in the continuous casting technology, in order to improve the quality of the slab, an Submerged nozzle is provided between the tundish and the crystallizer. Its main function is to protect the molten steel from the tundish from being oxidized by ambient air when it flows into the crystallizer. Distribute the molten steel evenly into the crystallizer and control the effect of the molten steel flow in the crystallizer.


Index Body slag line
Al2O3 ≥45
C+SiC ≥22 ≥15
ZrO2 ≥70
Refractoriness ≥1700 ≥1700
Bulk Density(g/cm3): ≥2.50 ≥3.50
parent porosity(%) : ≤17 ≤18
Cold crushing strength(Mpa): ≥20
cold bending strength ≥5
Thermal Shock Resistance (1100℃) ≥5


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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