Upper 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

LMM GROUP self-developed formula of Upper nozzle products adopts plate-like corundum, white corundum, silicon carbide, metal aluminum, high-quality magnesia and other main raw materials, selects scaly graphite carbon source with good oxidation resistance, and adds a small amount of antioxidant to improve oxidation resistance. Performance, with phenolic resin with high solid content and high residual carbon as binder. After high-pressure molding, it can be dipped according to the conditions of use.

It has the characteristics of good thermal shock resistance, high temperature strength, corrosion resistance and erosion resistance; long service life and a wide range of steel types.


MgO 28 5 5
Al2O3 83 76 90 85 67 96.5 90 90
CaO 1.5 1.5 1.5
C 8 8 4.5 5 4.5
Bulk Density (g/cm3) 3.04 2.95 3.03 3 3.05 3.2 3.16 3.16
Apparent porosity(%) 9 5 7 6 4 12 12 12


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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