
Ball Innsulekx
Rice-husk-ash insulating balls that form a low-density insulating layer on the bath to lock heat in — easy to apply and remove in the ladle and tundish.
N K Enterprises is an ISO-certified manufacturer and exporter of special refractories — insulating & covering compounds, slag coagulants and nozzle products — that help steel mills hold temperature and protect the quality of every heat. Over 95% of our production is exported worldwide.

Founded in 1992, N K Enterprises is a dedicated manufacturer and exporter of special refractories. We continue to focus on products and processes that respond directly to the needs of modern metallurgy — delivering quality that helps mills make better steel at economical cost.

From insulation and covering to slag treatment, casting and nozzle products — engineered for every stage of melting, transfer and casting.

Rice-husk-ash insulating balls that form a low-density insulating layer on the bath to lock heat in — easy to apply and remove in the ladle and tundish.

Active covering compound that insulates the tundish bath, absorbs inclusions and prevents reoxidation for cleaner cast steel.

Coagulates furnace and ladle slag into a dry, cohesive mass for fast, safe skimming and improved metal yield.

Reduces phosphorus in the melt so producers can hit tighter chemistry targets for quality-critical steel.
Covering compounds, slag treatments, de-phosphorisers and more — explore everything we make.
Our compounds support every stage where temperature and metal quality decide the outcome.
At the furnace, our Slagex treatments coagulate slag and adjust the chemistry — for cleaner, more efficient heats and better yield.
Through ladle and tundish, our insulating and covering compounds hold temperature and protect the steel from slag and reoxidation.
At the casting stage, our tundish compounds and nozzle products keep the strand clean and the metal flowing reliably.
From a 20,000-tonne annual capacity, more than 95% of our production is exported out of India and well accepted by demanding customers abroad.
North America·Europe·Russian Federation·Middle East·Africa·Australia
Controlled formulations and process discipline deliver the same performance, batch after batch.
Engineered to help mills make better steel at lower cost — through heat retention and higher yield.
Decades of export experience with reliable packaging, documentation and on-time logistics.
Share your process and requirements — our team will recommend the right grade and prepare a quotation.