Natural flake graphite is a crystalline carbon, natural, non-metal, black or dark grey mineral. It is soft and greasy. It belongs to hexagonal crystal system. It is foliaceous, scaly or compactly lump. Flake graphite has a density of 2.23 g/cm3, melting point of 3625 °C.
The particle size ranges from 75 µm to 500 µm, and the carbon content ranges from 80 to 99.99 %. According to the customer’s needs, we are able to offer high carbon, medium carbon and high purified flake graphite, too.
Flake graphite is widely used as an essential non-metallic in almost all industries. After further processing, crystalline flake graphite can be used to produce TV tube coatings, graphite friction reducing additives and many other high-tech products.
Available Types and Main Properties
High Carbon Flake Graphite
|
Grade No.
|
Norm
|
Fixed carbon (%)
|
Size (%)
|
Moisture (%)
|
|
Oversize
|
Undersize
|
|
NZ32-94-99
|
32mesh
|
94 - 99
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ50-94-99
|
50mesh
|
94 - 99
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ80-94-99
|
80mesh
|
94 - 99
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ100-94-99
|
100mesh
|
94 - 99
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ120-94-99
|
120mesh
|
94 - 99
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ150-94-99
|
150mesh
|
94 - 99
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ(-)100-94-99
|
100mesh
|
94 - 99
|
--
|
90 Min.
|
0.5 Max.
|
|
NZ(-)200-94-99
|
200mesh
|
94 - 99
|
--
|
90 Min.
|
0.5 Max.
|
Medium Carbon Flake Graphite
|
Grade No.
|
Norm
|
Fixed carbon (%)
|
Size (%)
|
Moisture (%)
|
|
Oversize
|
Undersize
|
|
NZ32-85-93
|
32mesh
|
85 - 93
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ50-85-93
|
50mesh
|
85 - 93
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ80-85-93
|
80mesh
|
85 - 93
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ100-85-93
|
100mesh
|
85 - 93
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ120-85-93
|
120mesh
|
85 - 93
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ150-85-93
|
150mesh
|
85 - 93
|
80 Min.
|
--
|
0.5 Max.
|
|
NZ(-)100-85-93
|
100mesh
|
85 - 93
|
--
|
90 Min.
|
0.5 Max.
|
|
NZ(-)200-85-93
|
200mesh
|
85 - 93
|
--
|
90 Min.
|
0.5 Max.
|
High Purified Flake Graphite
|
Grade No.
|
Fixed carbon, Min. (%)
|
Moisture, Max. (%)
|
Remains on sieve (%)
|
Main usage
|
|
NC35-99.9
|
99.90
|
0.2
|
80 Min.
|
flexible sealing
|
|
NC50-99.9
|
99.90
|
0.2
|
80 Min.
|
flexible sealing
|
|
NC80-99.9
|
99.90
|
0.2
|
80 Min.
|
flexible sealing
|
|
NC(-)100-99.9
|
99.90
|
0.2
|
20 or 10 Max.
|
lubrication base material
|
|
NC(-)150-99.9
|
99.90
|
0.2
|
20 or 10 Max.
|
lubrication base material
|
|
NC(-)200-99.9
|
99.90
|
0.2
|
20 or 10 Max.
|
lubrication base material
|
Characteristics and Benefits
- Superior conductivity
- Resistance to temperature, corrosion and hot shock
- Self-lubricating material
- Good flexibility
- High chemical resistance and chemical stability.
Applications
- Metallurgical industry - high quality refractory material or coating
- Electronics – carbon brush, electrode
- Light industry – black lead
- Catalyst in chemical fertilization processes
- After being deep processed – graphite sealing materials, composite materials, graphite friction reducing additives, TV tube coatings
