Submersible nozzle for continuous casting

Protect molten steel from oxidation, when it enters the crystallizer from the tundish, distribute the molten steel evenly in the mold and control the flow status of the molten steel in the mold, providing good resistance to slag, anti-lock, long service life and low accident rate.

Physico-chemical parameters of the submersible nozzle

Physical and chemical indicators：

Subject	Index
	JSK55	JSK50	JSK45	JSK40
Al2O3  %	≥55	≥50	≥45	≥40
C %	≥16	≥18	≥20	≥22
Flexural strength, MPa	≥5.5	≥5.5	≥5.5	≥5
Apparent porosity %	≤19	≤19	≤19	≤19
Bulk density, g/cm3	≥2.36	≥2.32	≥2.28	≥2.18

Slag zone：

Subject	Index
	Z75	Z70	Z65	Z55
ZrO2  %	≥75	≥70	≥65	≥55
C %	≥9	≥12	≥15	≥18
Apparent porosity %	≤21	≤21	≤21	≤22
Bulk density, g/cm3	≥3.6	≥3.5	≥3.4	≥3.2

Introduction to Rongsheng company

Rongsheng is a professional fireproof material supplier with 10 years of export experience to more than 80 countries. Rongsheng's main products are various fire bricks, shapeless fireproof materials, metallurgical materials, thermal insulation materials and so on.