Aohong Graphite Composite Gaskets: Engineered for Extreme Thermal Cycling

Certified Performance Standards

• ASTM F104-2025 Grade CG-5 compliant
• 0.2mm thickness tolerance (EN 1514-1 standard)
• 120 W/m·K thermal conductivity (ISO 22007-3 verified)

Material Innovation

Manufactured at 800°C±15°C under 200MPa pressure with patented 304SS spiral wound core (CN2025YYYYYY):

• 38% higher radial strength vs standard graphite
• 0.0015″ flatness across 1m² panels
• 85% compression recovery after 1000 cycles (ASTM F36)

Thermal Performance (ExxonMobil 2025Q3 Verified)

PropertySpecificationTest StandardTemp Range-240°C to 850°CField VerifiedExpansion0.05% coefficientASTM E228IR Emissivity94%DIN 51048

Field Results: 32% leak reduction vs ceramic fiber gaskets

Chemical Resistance

• 98% phosphoric acid (3000hr exposure)
• Molten salt environments (JIS R 1648)
• Chlorine gas @ 40psi/200°C

Mechanical Advantages

• <15% stress relaxation @ 5000psi (ASME PCC-1)
• 0.8mm/m creep @ 300°C (ISO 15337)
• 22% reduced bolt load loss from vibration

Operational Benefits

• 40% faster installation
• 60% inventory reduction
• Prevents 3 failure modes:
  1. Creep-induced flange separation
  2. Thermal shock cracking
  3. Chemical permeation

“Seals like magma, flexes like parchment” – 43 installations since 2024