Marine Boiler Baffle Wall Refractory Bricks – High‑Performance Heat Shield
Designed for the rigorous environment of ship‑board steam generation, marine boiler baffle wall refractory bricks provide a durable, thermally stable barrier that protects boiler baffles from direct flame and hot‑gas impingement. Engineered from high‑purity alumina‑silica mixes, these bricks maintain structural integrity at temperatures up to 1 800 °C while resisting corrosion from flue gases, salt mist, and cyclic heating.
Our bricks are supplied in standard and custom dimensions, enabling seamless integration with existing baffle assemblies and simplifying replacement during scheduled maintenance.
Technical Specifications (customizable per order)
| Parameter | Typical Range | Unit |
|---|---|---|
| Compressive Strength | 30 – 45 | MPa |
| Maximum Service Temperature | 1 800 | °C |
| Bulk Density | 1 800 – 2 200 | kg/m³ |
| Thermal Conductivity | 0.7 – 0.9 | W/m·K |
| Water Absorption (24 h) | ≤ 8 | % by weight |
| Standard Brick Size | 300 × 300 × 190 mm | mm |
All dimensions, densities, and material blends can be adjusted to meet class‑specific requirements or to match legacy installations.
Application Scenarios
- New‑build merchant vessels – installing refractory baffles in high‑pressure steam generators to improve heat transfer uniformity.
- Retrofit projects on naval frigates – replacing degraded fire‑brick panels where space constraints demand thin‑profile units.
- Offshore platforms – providing corrosion‑resistant lining for auxiliary boilers operating in salty, humid atmospheres.
- Marine repair yards – quick‑change kits for scheduled dry‑dock overhauls, minimizing vessel turnaround time.
Because the bricks are pre‑molded to fit typical baffle geometries, installation time is reduced by up to 30 % compared with hand‑cut firebrick solutions.
FAQ
What is the minimum order quantity (MOQ) for custom‑size bricks?
We accept orders as low as 500 pcs for standard dimensions. For non‑standard sizes, the MOQ is 1 000 pcs, which allows us to optimize tooling and keep lead times competitive.
Can the refractory composition be adjusted for higher silica content?
Yes. Our R&D team can formulate blends with up to 55 % SiO₂ to meet specific thermal‑expansion or slag‑resistance requirements. Such mixes are provided with the same mechanical strength class.
What certifications do the bricks carry?
All batches are tested in accordance with ISO 9001 quality management and comply with ABS and DNV‑GL marine boiler standards. Test reports are supplied with each shipment.
What is the typical lead time after order confirmation?
Standard bricks ship within 15‑30 days. Custom dimensions or special compositions require 30‑45 days, depending on order volume and material availability.
Ready to Upgrade Your Boiler?
Our marine boiler baffle wall refractory bricks are stocked in major ship‑yard hubs and can be shipped directly to your project site. Contact our technical sales team today to discuss dimensions, performance targets, and delivery schedules.
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