Pyrometallurgical

The process of furnace tapping can be a hazardous operation, and demands that careful attention is paid to taphole design, integrity and maintenance. For over 40 years, Elkem has provided high-quality taphole materials and tailored services to make tapping of ferroalloys as efficient and as safe as possible.

Our range of ramming pastes has been developed for use in aluminium electrolysis cells. The main purpose, both in the joints between the cathode blocks and in the peripheral seam, is to fill the voids between the prebaked blocks and prevent leakage of metal and electrolyte.

Monolithic linings are an ideal way of protecting the hearth and side walls on the inside of submerged arc furnaces from damage during the smelting of ferroalloys. The resulting improvments in furnace lifetime have made our ELMON™ linings valued by our customers across the smelting industry.

Over 100 years ago, Elkem was the first in the world to produce Søderberg electrode paste for submerged electric arc furnaces. Since then, we’ve remained at the top of innovation in this field, and our ELSEP™ electrode paste is today used in hundreds of furnaces globally.

Compacted graphite iron is increasingly used in specialist automotive and transport applications, thanks to its combination of high tensile strength, good fatigue properties, and ease of machining. With our combination of expertise, product quality and global reach, you’ll find Elkem is your ideal partner for optimizing production of compacted graphite iron.

Ductile iron is a versatile material that has grown in popularity over recent decades, due to its excellent mechanical properties and castability. For these reasons, ductile iron castings are the preferred choice in many sectors, including wind energy, engineering and automotive industries. At Elkem we provide an unbeatable combination of quality products and expert advice on ductile iron manufacture – in whatever country you’re operating.

Gray iron accounts for the majority of cast iron production, and is valued where its unique properties, including castability, stiffness, heat dissipation and vibration damping, take priority – for example, in automotive engine cylinder blocks and brake discs. At Elkem we provide an unbeatable combination of quality products and expert advice on gray iron manufacture – in whatever country you’re operating.

As an alloy of iron and silicon, electrical steel (also known as silicon steel) has unique magnetic properties, which make it of rapidly increasing importance in the energy-generation sector. Our steel specialists understand the technical specifications you need to meet, and are the world leaders in developing high-purity ferrosilicon (FeSi) alloys for premium electrical steels.

Ferrosilicon has a vital role to play in cost-effective production of stainless steel, thanks to its ability to recover the metallic chromium that would otherwise be oxidized during decarburization. At Elkem, we’re ready to help you streamline your alloying processes and boost the quality of your stainless steel, by identifying the best specialty ferrosilicon (FeSi) alloy for the task.

The term ‘special steel’ encompasses a wide range of steel grades, and usually refers to products with a higher proportion of alloying elements, or with tailored properties for niche applications. We understand the important role that ferrosilicon (FeSi) plays in achieving these specifications, and our specialists are ready to help you choose the right product.

Silicon a key element for enhanced aluminum brazing and great bonding
Aluminium Brazing technology is typically applied to produce heat exchangers in the automotive industry, such as radiators, and for indoor applications, such as air conditioning and refrigeration.

SILGRAIN® Braze
SILGRAIN® Braze is a tailored Silicon with homogenous quality and available in industrial volumes.
Special care is taken to closely control the particle size distribution and minimize the risk of oversize particles in our SILGRAIN® Braze product.