Overview
Ceramic Fiber Blanket 1430°C HP is the high-purity petrochemical-service specification — needle-punched amorphous alumina-silica fiber blanket with elevated Al₂O₃ content (52–55%) delivering 1430°C continuous service and the chemical-purity profile required for catalyst-adjacent process equipment. The grade sits between the 1360°C intermediate-temperature high-purity and the 1430°C polycrystalline premium grade — same temperature ceiling as polycrystalline but at significantly lower per-square-metre cost.
The grade's defining application is petrochemical fired heaters:
- Service temperature — refinery heaters, reformers, and steam crackers operate with internal flame and process-fluid temperatures reaching 1,100–1,400°C, sustained 24/7 for multi-year runs between turnarounds. The 1430°C continuous rating provides operational margin for upset conditions and temperature transients during burner-management events.
- Chemical purity — Fe₂O₃ content ≤0.5% prevents iron volatilisation into the process atmosphere where it would poison downstream catalyst beds. Ammonia plant primary reformers, methanol synthesis reformers, and catalytic naphtha reformers all specify Fe content limits, with 1430°C HP grade meeting the standard procurement specification.
- Hydrocarbon-radiant heat compatibility — the amorphous fiber structure tolerates the high-emissivity, soot-laden flame environment characteristic of fuel-oil and natural-gas-fired heaters, where polycrystalline fiber's brittleness can be a limitation in vibration-prone heater designs.
1430°C HP grade trades a small dimensional-stability disadvantage versus polycrystalline mullite (slightly higher linear shrinkage at peak temperature) for substantial cost-effectiveness advantage in price-sensitive petrochemical project procurement.
Technical Specifications
| Property | Unit | Value |
|---|---|---|
| Fiber chemistry | — | High-purity amorphous alumina-silica (melt-spun) |
| Al₂O₃ content | % | 52–55 |
| SiO₂ content | % | 45–48 |
| Fe₂O₃ content | % | ≤0.5 |
| Bulk density | kg/m³ | 128 |
| Linear shrinkage (24h at 1430°C) | % | ≤4.0 |
| Thermal conductivity at 400°C | W/(m·K) | 0.07–0.09 |
| Thermal conductivity at 800°C | W/(m·K) | 0.11–0.14 |
| Thermal conductivity at 1,000°C | W/(m·K) | 0.18–0.22 |
| Thermal conductivity at 1,200°C | W/(m·K) | 0.26–0.32 |
| Tensile strength | kPa | ≥60 |
| Fire classification (GB 8624) | — | Class A (non-combustible) |
| Standard roll dimensions | mm | 7,200 × 610 or 3,600 × 1,220 |
| Available thicknesses | mm | 12.5, 19, 25, 38, 50 |
Applications
Petrochemical Fired Heaters
Refinery fired heaters — crude-distillation heaters, vacuum unit heaters, hydrotreater feed heaters, FCC slurry heaters — operating at 950–1,200°C use 1430°C HP blanket as the primary radiant-section hot face. Standard hot-face thickness is 75–100 mm, with stainless-steel anchor pin installation and outer fiber-cement board cold face. The hot-face lining replaces traditional refractory brick or castable construction, delivering 30–40% reduction in heater shell heat loss and substantially reducing per-cycle energy consumption during operational ramping.
Catalytic Reformers and Naphtha Crackers
Catalytic naphtha reformers, ammonia plant primary reformers, and methanol synthesis reformers use 1430°C HP blanket as the reformer-furnace radiant-section hot-face insulation. The ≤0.5% Fe₂O₃ specification prevents iron carryover to catalyst beds that would poison platinum / palladium-based reforming catalysts and nickel-based methanation catalysts. The grade is specified in major petrochemical EPC project procurement specifications across China, Middle East, and Southeast Asia.
Steam Cracker Pyrolysis Heaters
Steam cracker pyrolysis heaters — the centrepiece of olefin-production complexes — operate at internal radiant-section temperatures reaching 1,200–1,400°C. The 1430°C HP grade provides the temperature ceiling margin required for sustained operation across the typical 3–5 year run length between cracker turnarounds, with the dimensional stability needed to prevent gap-forming wall failures that would compromise heater integrity.
High-Temperature Heat Treatment
Steel mill carburising furnaces, high-temperature austenitisation lines, and tube-mill brazing furnaces operating at 1,300–1,400°C use 1430°C HP as the primary lining. The grade's combination of chemical purity (preventing furnace atmosphere contamination) and temperature ceiling (accommodating peak processing temperatures plus operational margin) suits the demanding service profile of high-end steel mill equipment.
Power Generation Fired Heaters
Industrial cogeneration heat recovery boilers and gas-turbine hot-side ducting use 1430°C HP blanket where peak transient temperatures during start-up or trip events would exceed the standard 1260°C grade's safe service limit. The HP grade's margin protects against unplanned high-temperature excursions that would damage the standard grade and require unscheduled maintenance.
Packaging & Storage
Packaging matches the other 1260/1360°C grades — PE-film-wrapped rolls in 7,200 × 610 mm or 3,600 × 1,220 mm formats. Container shipment is typically 1,500–2,500 m² per 40' container in stock 25 mm thickness. MOQ is 50 m² sample, 500 m² production, 5,000 m² full-container. Lead time is 3–4 weeks for the high-purity formulation, slightly extended over standard grades.
Documentation is comprehensive — batch CoA includes detailed Fe₂O₃ certification (independent third-party analysis), Al₂O₃ content, alkali oxide trace analysis, and linear shrinkage at 1430°C. For major EPC projects, manufacturer compliance statements aligned with API 530, API 535, and SHELL DEP fired-heater specifications are available against firm order.
Related Products
- Ceramic Fiber Blanket Hub — full 6-grade portfolio
- Ceramic Fiber Blanket 1430°C Polycrystalline — premium grade for dimensional stability in long-campaign service
- Ceramic Fiber Blanket 1600°C Mullite — ultra-high-temperature grade for ceramic kiln service
- Ceramic Fiber Blanket 1360°C High-Purity — intermediate-temperature variant
- METHERM® Microporous M 1100 — extended-temperature microporous cold-face backup
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