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High Purity Graphite Ring

High purity graphite ring adopts high-purity graphite material, and is made by precision CMC equipment. It is the best choice for hot top casting, can meet the production of high value-added, high technical performance requirements.

Graphite Ring
Graphite Ring

Graphite Ring Specification

3in 3.5in 4.5in 5in 5.5in 6in 6.5in 7in
8in 9in 10in 12in 14in 16in 18in 20in

Technical Parameter

Item Density
Compression Strength
Thermal Expansivity
Max Working Temperature
Index 1.4-1.5 15-16 4-4.5 >1000
Dosing Furnace Seal
Dosing Furnace Seal
High Purity Graphite Ring
High Purity Graphite Ring


  1. High-purity graphite ring has a smooth glazed surface, high geometric processing accuracy and low maintenance cost.
  2. No delamination and peeling phenomenon. It can effectively reduce the pollution of aluminum liquid, and achieve pollution-free precision aluminum casting.
  3. Erosion resistance, good thermal shock resistance, strong corrosion-resistance to molten metal.
  4. The life is long for normal 800-1200 casting times, graphite ring can achieve energy saving and consumption reduction.

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