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Signature™ (Graphite and Carbons)



The Signature™ family of graphites and carbon materials, in powder and granular form, includes crystalline flake and vein graphite, amorphous graphite, synthetic (artificial) graphite, along with calcined petroleum cokes. These materials are sourced from selected and qualified mines and sources from around the world.

Signature™ graphites and carbons are chosen to perform in the most challenging and in the simplest applications. These materials offer consistency and quality at an economical price.





Amorphous Graphite  · Calcined Petroleum Coke  · Flake Graphite  · Synthetic Graphite  · Vein Graphite

Amorphous Graphite

Characteristics (Amorphous Graphite)

Carbon (LOI): 80 - 99%
Grain Size Distribution: Varies upon grade

Appearance (Amorphous Graphite)

Amorphous graphite is microcrystalline in structure. Normally found as massive lumps with flat fracture cleavage. Formed by thermal metamorphism of coal seams, its carbon content is dependent on the parent material.

Applications (Amorphous Graphite)

Lubricant Additives, Friction Materials, Pencils, Refractories, Paints, Rubber and Polymer Composites, Metal Covers, Thread Compounds, Drilling Mud Additives

SEM (Amorphous Graphite)



Calcined Petroleum Coke

Characteristics (Calcined Petroleum Coke)

Carbon (LOI): 99.0% min.
Grain Size Distribution: Varies upon grade

Appearance (Calcined Petroleum Coke)

Calcined petroleum coke is formed from the by-product of crude oil distillation. Available in wide ranges of types and morphologies to meet the application, these materials have a dark, flat sheen. They are high in carbon but have reduced lubrication, electrical and thermal conductivity properties, and are mainly used as a filler.

Applications (Calcined Petroleum Coke)

Friction Materials, Refractories, Packings & Seals

SEM (Calcined Petroleum Coke)



Flake Graphite

Characteristics (Flake Graphite)

Carbon (LOI): 80 - 99%
Grain Size Distribution: Varies upon grade

Appearance (Flake Graphite)

Crystalline flake graphite can be recognized by its high metallic sheen, and plate like particle morphology. It is formed in metamorphic rock, in concentrations of 5 - 12% of the ore body. This is the most widely available crystalline form of natural graphite.

Applications (Flake Graphite)

Friction Materials, Energy Materials, Powder Metallurgy, Electrical Components, Carbon Brushes and Parts, Insulation, Thread Compounds, Drilling Mud Additives, Packings & Seals

SEM (Flake Graphite)



Synthetic Graphite

Characteristics (Synthetic Graphite)

Carbon ( LOI): 98.0 - 99.7%
Grain Size Distribution: Varies upon grade

Appearance (Synthetic Graphite)

Synthetic Graphite, sometimes referred to as artificial graphite, is the by-product of graphite electrode manufacturing. It has a dark gray to black, flat appearance. Manufactured from calcined petroleum cokes, and graphitized at temperatures above 2700 deg Celsius, these materials offer high purity, excellent lubrication, and electrical conductivity.

Applications (Synthetic Graphite)

Friction Materials, Energy Materials, Powder Metallurgy, Electrical Components, Carbon Brushes and Parts, Thread Compounds, Drilling Mud Additives, Rubber and Polymer Composites, Packings & Seals

SEM (Synthetic Graphite)



Vein Graphite

Characteristics (Vein Graphite)

Carbon (LOI): 90 - 99%
Grain Size Distribution: Varies upon grade

Appearance (Vein Graphite)

Crystalline vein graphite can be recognized by its light metallic sheen and needle-like particle morphology. It is found in fissures, fractures, or cavities transversing igneous and metamorphic rocks through pyrolysis of carbon-bearing gases. It is the most pure and highest level of crystallinity of the natural graphites, as well as the most rare.

Applications (Vein Graphite)

Energy Materials, Lubricants, Grinding Wheels, Powder Metallurgy, Electrical Components, Friction Materials, Plastics, Carbon Brushes and Parts

SEM (Vein Graphite)