Carbon solutions that add value to various industries World-Wide

Know more about us

A globally recognized Company specializing in carbon-based solutions across multiple industries

  • With over 50 years of experience, we are committed to delivering high-quality and high-tech carbon products.
  • Unimetal focuses on sustainable product solutions through continuous technological advancements and highly qualified processes, catering to industries such as aluminum, steel, energy, and more.
  • They aim to promote sustainability and efficiency, enhancing community development and reducing carbon emissions.

Markets attended (8)

For every need, the perfect carbon product

Desculco®: A High Quality American Engineered Recarburizer Solution

About

The Purest Form of Carbon Additive on the Market

Developed for the demanding needs of the ferrous and non-ferrous metals industry, Superior Graphite consistently produces Desulco®, a premium graphitic carbon raiser with high carbon purity levels utilizing proprietary Electro-Thermal Treatment/Purification Technology. Desulco® recarburiser contains no dust, low ash and sulfur, and consistently low gas levels. The result is rapid dissolution, maximum carbon recovery, and minimal additions to the melt, saving time and money. Desulco® is the most cost-effective carbon raiser additive available. When looking for quality and cost-effectiveness in a carbon raiser, Desulco® recarburiser is the superior solution.

Steel Production: Desulco® recarburiser is used to increase the carbon content for the production of high carbon steels such as steel cord tire wire, heavy plate, rail, bearing steel, special billet qualities, as well as a final trim addition for low and medium carbon steels at the ladle metallurgy furnace.

Ferrous Foundries: Desulco® carbon raiser is used as a charge carbon and trim additive for the production of gray and ductile iron, along with pretreatment of ductile iron, and to reduce chill depth in gray cast iron.

Melt Cover: DesulcoMC® is successfully used as melt cover for pure copper, brass, bronze, or other copper alloys to prevent oxidation of the melt and deter
the formation of oxide slag. DesulcoMC® has a graphitic crystalline structure and therefore does not oxidize as readily as coke and charcoal, resulting in lower consumption of the melt cover material. DesulcoMC® is also chemically inert and does not react with copper and its alloys.

Benefits of Desulco®: Carbon Raiser | Recarburiser

DesulcoMC® is effectively used as a melt cover for pure copper, brass, bronze, or other copper alloys to prevent oxidation and deter oxide slag formation. With a graphitic crystalline structure, DesulcoMC® does not oxidize as readily as coke and charcoal, resulting in lower consumption of the melt cover material. Additionally, DesulcoMC® is chemically inert, ensuring it does not react with copper and its alloys.

Available Products

Desulco® 9001

A coarse graphitized desulfurized petroleum coke. Main uses are for basic recarburisation in the cold charge for ductile and grey iron foundries.

Download brochure

Desulco® 9005

A very coarse graphitized desulfurized petroleum coke. Main uses are for recarburisation in steel plants.

Download brochure

Desulco® 9012

A medium narrow-sized graphitized desulfurized petroleum coke. Main uses are preconditioning, as well as recarburisation of tap and charge process for ductile iron foundries.

Download brochure

Desulco® 9018

A fine narrow-sized graphitized desulfurized petroleum coke. Main uses are late addition in ladle of ductile iron and grey iron using cupola foundries when no mixing is occurring.

Download brochure

Puregraph®: Full Scope of Carbon products from Brazil

About

The Unimetal Inc. is specialized in adding value to carbon products for its use in different applications from quality energy source to high purity graphite.

Green petroleum coke has several applications, especially in primary industries, and is part of industrial processes that result in products used in our daily lives.
Green coke is obtained from the cracking of residual fractions of the petroleum distillation process, is rich in carbon (80% to 95%), has a high energy factor, and is solid, black, and shiny.
Green petroleum coke can be used in several processes, in natura or after being industrialized, generating new products of high purity and high added value.

The petroleum refining process undergoes two stages: atmospheric distillation and vacuum distillation. The fuel oil obtained from vacuum distillation originates the green petroleum coke, also known as petcoke.

The petcoke market is very diversified and requires technical knowledge mastered by Grupo Unimetal.

More than a supplier of raw materials, Grupo Unimetal is also responsible for the production of knowledge and technical support, which proves its commitment to supplying not only carbonaceous products but also providing quality market solutions.

Available Products

Pure Graphite

The purest form of carbon. Excellent carburizer for cast iron and special steels. Ultra low nitrogen and non-metallic (ultra low sulfur).

Download brochure

X-Carb

The purest form of carbon for various applications. Low nitrogen and non-metallic impurities.

Download brochure

Calcined Petroleum Coke (CPC)

High carbon recovery, excellent solubility and very low content of sulfur.

Download brochure

Calcined Petroleum Coke (CPC) - Anode Grade

Excellent recarburiser (high fixed carbon), rapid solubility in an electric arc furnace and blast oxygen furnace (BOF).

Download brochure

Larpen Metallurgical Service®: North American Leader of
Graphite

About

North American Leader and World-Wide Supplier of Graphite and Carbon Additives Since 1962

North American Leader and World-Wide Supplier of Graphite and Carbon Additives Since 1962

We offer a wide array of products under our esteemed GRAPH-HEX brand, each crafted to meet the diverse needs of the metallurgical industry. Our products are designed with precision and a commitment to quality, ensuring optimal solutions for your specific applications.

Advantages of GRAPH-HEX® Products:

  • High Carbon Recovery
  • Rapid Dissolution
  • Consistent Quality
  • Low Ash
  • Minimal Sulfur, Nitrogen, and Hydrogen
  • Reliable Performance
  • Economical Savings
  • Reduced Carbon Consumption, Tap-to-Tap Time, and Scrap Rate

Available Products

GRAPH-HEX®: Economical High-Quality Carbon Additive

In the early 2000s, we developed GRAPH-HEX®, an economical source of high-quality recarburizers for the foundry and steel industries. Leveraging global sourcing for the highest quality raw materials, state-of-the-art manufacturing, and stringent quality control, we ensure our customers receive the most cost-effective, high-quality carbon additive available. GRAPH-HEX® includes over fifty products with sulfur contents ranging from 0.02% to 0.2%, showcasing quality and adaptability.

Download brochure

Low Sulfur Pet Coke: Optimizing Charge Carbon for Gray Iron Casting

We produce a spectrum of low to medium sulfur petroleum cokes (0.35% – 4.0% sulfur) to serve as charge carbon for gray iron casting, ensuring optimal performance and quality.

Download brochure

Silicon Carbide: Distributing Superior Quality Carbolon MA

As a distributor of Carbolon MA 90% silicon carbide from Washington Mills, we provide premium quality materials for your metallurgical needs. Silicon Carbide ensures excellent performance, durability, and efficiency in various applications.

Download brochure

Get in touch

Send us a message

Feel free to request a quote or send inquiries about our products.

1-800-CARBONS sales@unimetalinc.com / sales@larpen.com

Our offices

Unimetal Inc.

200 South Wacker Drive Downtown, 31st Floor - Chicago, Illinois 60606

Larpen Metallurgical Supply - Hartford Unit

1111 Western Drive, Hartford, WI 53027

Larpen Metallurgical Supply - Mulga Unit

2530 Atwood Ferry Road, Mulga, AL 35118

Larpen Metallurgical Supply - Galena Park Unit

500 South Main St, Galena Park, TX 77547

Larpen Metallurgical Supply - Lemont Unit

12300 New Ave, Building B., Lemont, IL 60439