Graphite Gasket Manufacturer
At Steel Icon Stainless Pvt. Ltd., we manufacture premium-grade Graphite Gaskets—engineered to provide exceptional thermal stability, chemical resistance, and sealing reliability in extreme environments. Made from flexible or reinforced graphite sheets, these gaskets are the go-to choice for sealing applications involving steam, high-pressure gases, acids, alkalis, and hydrocarbons.
Graphite gaskets perform where others fail—handling temperatures up to 500°C+ and pressures up to 200 bar. They are widely used in refineries, power plants, chemical units, marine systems, and thermal processing.
Why Choose Graphite Gaskets?
- High temperature resistance up to +550°C (or more with oxidation inhibitors)
- Excellent sealing under pressure, thermal cycling, and flange irregularities
- Chemically resistant to acids, alkalis, oils, and gases
- Available in pure graphite, reinforced (tanged/flexible), and laminated forms
- Compatible with metallic and non-metallic flanges
| Products |
|---|
|
Stainless Steel Bar |
|
Fasteners |
|
Forged Products |
|
Flanges |
|
Forged Fittings |
|
Stainless Steel Billets |
|
Round Corner Square Billets |
|
Stainless Steel Pipes |
|
Pipe Fittings |
|
Valve |
Specification Chart
| Property | Specification |
|---|---|
|
Temperature Range |
–200°C to +550°C (with proper oxidation control)
|
|
Pressure Rating |
Up to 200 bar |
|
Standard Thickness Range |
0.5mm to 5mm |
|
Types Available |
Pure graphite, tanged, wire mesh, laminated |
|
Density |
1.0 to 1.8 g/cm³ |
|
Standards |
ASME B16.21, DIN 28091, EN 1514-1 |
Chemical Composition (Flexible Graphite)
| Component | Typical Range (%) |
|---|---|
|
Carbon (Fixed) |
≥ 98% (typical 99.5%) |
|
Ash |
≤ 1.0% |
|
Sulfur |
≤ 0.05% (low-sulfur grades available) |
|
Chloride |
≤ 25 ppm |
Higher purity graphite available for nuclear and ultra-clean applications.
Mechanical Properties
| Property | Pure Graphite | Tanged Graphite (SS 316 insert) |
|---|---|---|
|
Tensile Strength |
4–6 MPa |
≥ 15 MPa |
|
Compressibility |
30–50% |
25–35% |
|
Recovery |
10–20% |
15–25% |
|
Thickness Tolerance |
±0.05 mm |
±0.1 mm |
|
Thermal Conductivity |
4.5 W/m·K |
8–12 W/m·K (with insert) |
Types of Graphite Gaskets Offered
- Pure Graphite Gaskets – Excellent for clean services and flange conformity.
- Tanged Graphite Gaskets – Reinforced with SS 316 tanged sheet; ideal for steam, heat, and pressure.
- Wire Mesh Reinforced Gaskets – Enhanced mechanical durability for dynamic equipment.
- Graphite Laminate Gaskets – Combine compressibility and metal strength; perfect for high-cycle flanges.
- Graphite Rings & Cut Gaskets – Available in standard and custom die-cut profiles.
Applications
- Boilers & Steam Lines – Seals superheated steam in high-pressure pipe flanges.
- Chemical Processing Equipment – Withstands acids, alkalis, and solvents.
- Power Generation & Turbines – For flange joints exposed to heat, pressure, and vibration.
- Compressors & Engines – Ideal for dynamic seals with varying loads.
- Marine Industry – Handles salt exposure, pressure surges, and hot exhausts.
- Pharma & Food Plants – For high-purity graphite applications in non-toxic environments.
Key Benefits
- High-Temperature & Pressure Resilience – Operates at up to 550°C and over 200 bar, depending on reinforcement.
- Excellent Recovery & Conformability – Adjusts to flange roughness and thermal expansion without leakage.
- Non-Adhesive & Anti-Stick Surface – Easy to remove and replace during maintenance.
- Low Emission / Fugitive Leak Control – Trusted in gasket applications requiring tight sealing and zero emissions.
- Custom Sizes, Thicknesses, and Reinforcement Options – Offered in rolls, sheets, rings, or CNC-cut designs.
Frequently Asked Questions
Explore our FAQs for insights on materials, customization, and delivery.
Are graphite gaskets suitable for steam sealing?
Yes, graphite is one of the best materials for high-temperature steam, especially when reinforced.
What’s the difference between pure and tanged graphite?
Pure graphite is softer and conforms easily. Tanged graphite is reinforced with metal, offering better strength and blowout resistance.
Can graphite gaskets handle acids and bases?
Yes. Graphite resists most chemicals, including strong acids and alkalis. Avoid oxidizers at high heat.
Do you offer nuclear-grade graphite gaskets?
Yes, we offer ultra-low sulfur and chloride graphite for nuclear or ultra-clean applications.
GET IN TOUCH
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