Ceramic Fiber
Ceramic fiber gasket fillers are used where very high temperature resistance is more important than the chemical inertness or recovery behavior of graphite or PTFE. Exact composition and classification vary by fiber system.
Ceramic Fiber Information
Ceramic fiber gasket fillers are used where very high temperature resistance is more important than the chemical inertness or recovery behavior of graphite or PTFE. Exact composition and classification vary by fiber system.
Metallic winding and compatible ring components where service conditions are suitable.
| Typical Chemistry | Aluminosilicate fiber |
|---|---|
| Material Type | Refractory ceramic fiber / high-temperature fiber |
| Exact Grade | Product-specific |
| Common / Applicable Specification | Manufacturer/product specification required |
| Typical Gasket Use | Metallic winding and compatible ring components where service conditions are suitable. |
Ceramic Fiber Chemical Composition
Reference composition limits are shown below. Exact requirements should be confirmed against the applicable product specification and certified material documentation.
| Element / Constituent | Symbol | Composition / Information |
|---|---|---|
| Alumina | Al₂O₃ | Common principal oxide |
| Silica | SiO₂ | Common principal oxide |
| Other Oxides | — | May include zirconia or other components depending grade |
| Organic Binder | — | May be present in fabricated paper/tape products and burn off on heating |
Ceramic Fiber Mechanical Properties
Ceramic-fiber mechanical values are not universal material constants; they depend on whether the supplied product is paper, tape, blanket or another fabricated form.
| Property | Reference Value | Unit / Basis |
|---|---|---|
| Tensile Strength | Product-form dependent | — |
| Compressibility | Product-dependent | % |
| Density | Product-dependent | kg/m³ or g/cm³ |
Values shown are engineering reference data, not universal design allowables. Final procurement and design must use the governing specification, exact product form/condition and certified material test documentation.
Ceramic Fiber Physical & Service Information
Reference physical properties and service considerations relevant to material selection for Spiral Wound Gaskets.
| Temperature Capability | High; many aluminosilicate fiber products are classified around 1260°C, but continuous-use limits are lower and product-specific. |
|---|---|
| Chemical Behaviour | Generally resistant to many chemicals except strong alkalis and certain acids/fluorides depending composition. |
| Thermal Conductivity | Low; one reason for use as refractory insulation/filler. |
| Binder Burn-Off | Organic binders, if present, can burn off during initial heating. |
| Service Selection | Use the specific filler datasheet and regulatory classification for the exact ceramic fiber product. |
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