Green Crystal LLC is a full-cycle research and production company. Our activities are based on the development and implementation of nitrogen-containing master alloys and strengthening additives using SHS (Self-propagating High-temperature Synthesis), as well as the manufacturing of custom metallurgical equipment. Our materials enable metallurgical and refractory enterprises to increase product service life, control nitrogen alloying, and reduce their carbon footprint.
Continuous advancement and technology improvement. We are convinced that technology must constantly evolve and improve to unlock new possibilities for the sustainable and efficient use of natural resources and to enhance the efficiency of industrial sectors.
— Hardening Condensed Powders/Mixtures based on silicon nitride (Si₃N₄) and iron silicides
Purpose: Additive for taphole mixes and other dry refractory mixtures for blast furnaces and foundry units. Alloying material for production of special steels
Effect: increased corrosion resistance to liquid metal/slag, improved sintering characteristics, enhanced resistance of refractory linings
Purpose: Microalloying of structural, rail, and tool steels; replacement/optimization of ferrovanadium.
Effect: Increased strength and impact toughness, low operating melting temperature (~1450°C), high density, absence of open porosity
2/5
NFSi®
— Designed for alloying electrical, transformer grades of steel, and nitrogen-containing steels containing silicon
Purpose: Precise nitrogen introduction in steels with nitride grain boundary pinning; improvement of magnetic characteristics.
Additionally: Materials for cored wire, charge fillers for welding electrodes and surfacing wires with increased nitrogen content
3/5
Gas-oxygen Tuyeres for EAF
About the product
A gas-oxygen tuyere is a component of a modern electric arc furnace responsible for supplying process gases into the metal melting zone. Operating under extreme temperatures and in an aggressive environment, it requires maximum reliability and efficient heat removal.
The tuyere is installed in a water-cooled jacket to protect it from high temperatures. It is water-cooled and has separate systems to supply oxygen for combustion and purification, natural gas lines, and cooling water inlet and outlet lines
4/5
Protective Coating Application for Graphitized Electrodes
to optimize their consumption in electric arc furnace (EAF) and ladle furnace (LF) operations
About Service
The application of special protective coatings to graphitized electrodes for electric arc furnaces and ladle furnaces reduces their consumption and extends their service life by protecting them from oxidation and erosion.
5/5
YOU WILL GET:
Reduced Total Cost of Ownership
Extended refractory service life reduces consumption of alloying materials and prevents unplanned downtime
