Expandable Graphite

used in the dynamic and static seals in petroleum industry adn etc.

The Expandable Graphite still retains the characteristics of natural flake graphite, and also has good expandability, loose and porous. Its heat-resistant range under the oxygen-free environment is between -200 to 3000, and it is chemically stable under high temperature, pressure or radiation. When the Expandable Graphite was treated in a twinkling at high temperature, the form of flake is turned into that of worm, and the volume can expand from 100 to 400 times.It is widely used in the dynamic and static seals in petroleum industry, chemical industry, electric industry, space industry, and automobile industry, etc. In order to satisfy the market needs, we have developed Ultra Low Sulfur Expandable Graphite in recent years.

Common Expandable Graphite

Grades Fixed carbon(%) Ash(%) Volatile(%) Expansion Ratio (%) Sulfur Content PH Value Moisture(%) Particle Size Screen Oversize(%) Pre-expansion(ppm) Post-expansion(ppm) SKP32 90-99.9 ≤8.0 ≤10 200-400 ≤1000 ≤800 3-7 ≤1.0 ≥80 SKP50 200-350 SKP80 150-250 SKP100 100-200

Ultra Low Sulfur Expandable Graphite

Grades Fixed carbon(%) Ash(%) Volatile(%) Expansion Ratio (%) Sulfur Content PH Value Moisture(%) Particle Size Screen Oversize(%) Pre-expansion(ppm) Post-expansion(ppm) SKP32 90-99.9 ≤8.0 ≤12 200-400 ≤800. ≤200 3-7 ≤1.0 ≥80 SKP50 200-350 SKP80 150-250 SKP100 100-200

The above technical indexes, including trace elements contents, can be adjusted according to the user's different     requirements.

Expandable Graphite