GR-N Nuclear Graphite Ring

JXSEAL GR-N nuclear grade graphite packing rings are formed with our JXSEAL GF-N nuclear grade pure expanded graphite foil evenly wrapped and compressed under extreme pressure to ring types by our highly precision molds.




  • Carbon content: 99.8%
  • Density: 1.6-1.8g/c.c
  • High working temperature and pressure
  • Self-Lubriation
  • Cross section: Square, O, V and Wedge-shape
  • 45 degree cutting is available
ID OD Thickness
3mm-1000mm 6mm-1100mm  0.6mm min.