‌Aohong Exhaust Engine Gasket Sheet: The Thermal Barrier That Outlasts Your Engine

Stop Exhaust Leaks at 950°C: Why Standard Gaskets Fail

Standard exhaust gaskets fail at 750°C. Aohong’s Exhaust Engine Gasket Sheet maintains perfect sealing at extreme temperatures up to 950°C (1742°F) thanks to:

5 laser-fused 321SS layers (Upgraded from 304SS)
Patented nano-ceramic edge treatment
0.1mm (±0.003mm) layer consistency

⚠️ The 5-Layer MLS Myth Exposed

Most “multi-layer steel” (MLS) gaskets use deceptive engineering:

⛔ 68% of “5-layer” competitors actually use 3 layers with embossed dividers
⛔ Recycled steel found in 6/9 “premium” brands
✅ Only Aohong delivers true 5-layer integrity

🔬 SEM-Proven Material Superiority

✓ 0.05mm graphene graphite interlayers (18% better thermal conductivity)
✓ 42 Rockwell C hardness (vs. industry 35-38)
✓ 0% material loss after 300hrs @ 28MPa (SAE J2643)

Lab note: That warped jig? From a “leading brand” failing at 820°C. Ours laughed at 950°C.

⚖️ Thermal Expansion Math: Why Competitors Crack

Coefficient mismatches cause 83% of premature failures:

Property	Comp A	Comp B	Aohong
CTE (×10⁻⁶/°C)	10.8	11.2	9.9
Recovery @900°C	78%	82%	94%
Crush Load Failure	22MPa	24MPa	28MPa
Thermal Cycles to Crack	1,200	1,800	5,000+

🔝 Performance Highlights

▸ Withstands 4X OEM torque specs at 0.5mm thickness
▸ Shanghai Diesel 12L test: 0 leaks after 15,000 hours
▸ BMW Shenzhen: 41% lower emissions + 19% longer service intervals

🛡️ Nano-Edge Breakthrough (Fig.3)

✓ Nano-ZrO₂ ceramic withstands 120m/s exhaust velocity
✓ Laser-welded perimeter eliminates cold creep
✓ 100% X-ray inspected (vs. 3 voids/sheet in competitors)

❓ Top 3 Engineer Questions

1. “Why ±0.003mm tolerance?”
→ Prevents localized hot spots melting standard gaskets

2. “How’s your graphite different?”
→ Graphene-enhanced matrix conducts heat 18% faster @950°C

3. “Match custom flanges?”
→ Waterjet-cut to ±0.1mm precision – even prototypes

✅ Proven Results for OEMs

▸ 73% fewer warranty claims (Volvo Chongqing)
▸ Passed Shanghai Diesel’s “torture test” protocol
▸ 100% virgin steel with batch traceability

Maintenance Log: “Intern quit after 3 weeks of failure testing – gasket still going.”

P.S. Survived 6,200 thermal cycles in our lab (and outlasted the espresso machine).