Expandable Graphite, produced by our company from high-quality natural flake graphite, is a flexible graphite product obtained through special modification. It serves as an ideal new sealing material with extensive applications in dynamic and static sealing across industries such as petrochemical, electric power, aviation, automotive, shipbuilding, and instrumentation.
Expansible graphite is processed at high temperatures for an instant, transforming its scale-like structure into a worm-like form, with the ability to expand in volume.100-400 times expansion, this expanded graphite still retains the properties of natural graphite, and has good molding plasticity, flexibility, extensibility, and sealing properties. It is the high-quality raw material for various graphite sheets and sealing parts, and can also be used as a new type of protective slag and heat agent in the metallurgical industry.
Variety | Specs | Expansion Ratio | Performance | Usage |
9950250, 9980250, 9950200, 9980200, 9550250, 9580200, etc. | Mesh size: 32 mesh, 50 mesh, 80 mesh, 100 mesh - 100 mesh - 200 mesh - 325 mesh | 100-400ml/g | Excellent expandability, with finished products featuring high-temperature resistance, radiation protection, insulation, lubricity, plasticity, and chemical stability. | Broadly used in industries such as steel, metallurgy, petroleum, chemicals, machinery, aerospace, and nuclear energy. |
Expandable Graphite Technical Specifications:
Ultra-low sulfur expandable graphite
Specs | Fixed Carbon (%) | Ash (%) | Volatile Matter (%) | Expansion Ratio | Sulfur content | pH value | Moisture (%) | Particle Size (%) |
DL32 | 90-99.9 | ≤8.0 | ≤10 | 200-400 | ≤0.03 | 3-7 | ≤1.0 | ≥80 |
DL50 | 200-350 | |||||||
DL80 | 150-250 | |||||||
DL100 | 100-200 |
The product's advantages are:Sulfur content can be controlled within the smallest range.































