Making steel from iron is the secondary refining process, also known as secondary metallurgy.

Steel producers are increasingly manufacturing high and low-carbon, structural, unique alloyed, and mechanical steel qualities, all of which have high requirements for resistance, strength, and purity. Inferior quality of raw materials increases process difficulties resulting from the presence of harmful residual elements such as sulfur, phosphorous, hydrogen, and non-metallic inclusion of SiO2 and Al2O3.

Opta can treat and even remove those impurities using secondary metallurgy, cored wires, and slag conditioners. Application of those products comprises precise technical diagnosis using state-of-the-art computer modeling, empirical data from in-situational use, and follow-up by highly qualified technicians. Opta ensures optimum results and customer satisfaction.

Steelmaking Products

Opta has extensive knowledge in sand, fluxes, and insulators. Our team can help develop a solution that will improve quality and reduce your time from tap to cast.

Desulfurization Products

Opta has a wide range of desulfurization products covering all areas of steelmaking, from hot metal to steel tapping fluxes to degassing fluxes. Contact us to learn more →


Opta supplies tapping sands for electric furnaces and nozzle sands for ladle needs. Our products include chromite, zirconia, silica, and olivine sands. We can customize sands for any operation to get the best free-open rate. Contact us to learn more →

Insulators & Fluxes

Insulators and fluxes for various steelmaking needs, from acid to basic practices. We sell standard products for ladles and tundishes, and we have developed specific fluxes, including our T3 series tundish flux used in the majority of the thin slab casters in the United States. Contact us to learn more →

Carbon Products

Opta offers Injection Carbon and Charge Carbon products that aid in the steelmaking process. We ship these products in super sacks or bulk trucks, depending on location. Contact us to learn more →

Deoxidizing, Desulfurizing, Conditioning, Shape Control


The chemistry of briquettes for secondary metallurgy applications has no real limit in killing steel, killing slag for desulfurization, improving alloy recovery, and slag conditioning. Contact us to learn more →

Blended Granular Synthetic Slags

Granular Lime or custom-blended products to achieve your deoxidizing, desulfurizing, or slag-conditioning needs. Contact us to learn more →

Sintered Synthetic Slags

Next-generation, custom-blended products that provide better handling, precise melting points, lower energy consumption, no hydrogen pickup, and best-quality steel grade. Contact us to learn more →

Granular Slag Conditioning

Sintered custom-blended products to suit specific processing needs. The use of tundish cover permits the reduction of thermal losses and improves steel cleanliness. Contact us to learn more →

Pelletized Products

Insulating Ladle Cover: A cost-competitive, emission-free, pelletized material for heat insulation. Contact us to learn more →

Special Applications

Foamy slag, aggressive fluxes, and silicon pickup. Contact us with any special requirements. Contact us to learn more →

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