High Alumina Checker Brick Supplier for Custom Refractory Solutions
Highland Refractory supplies high alumina checker bricks for hot blast stove checkerwork, regenerative chambers and replacement projects. We can review your required grade, brick dimensions, hole pattern, quantity and furnace conditions before confirming the applicable specification.
Whether you need standard checker bricks or drawing-based production, send your checker brick drawing or project specification for a technical review and quotation.
High Alumina Checker Brick at a Glance
| Item | Product Information |
|---|---|
| Product | High Alumina Checker Brick |
| Typical use | Checkerwork in regenerative chambers and hot blast stoves |
| Available reference grades | RSGL-75, RSGL-65, RSGL-55 and RSWPL-75 |
| Supply format | Standard or drawing-based production, subject to review |
| Custom scope | Dimensions, hole diameter, hole count, hole pattern and special shapes |
| Technical input | Drawing, checkerwork layout, operating conditions and quantity |
Final grade availability, tolerances and technical values should be confirmed against the project specification and final technical data sheet.
Checker Bricks for Procurement and Replacement Projects
High alumina checker bricks are used as shaped refractory components in the checkerwork of regenerative heating systems. For a replacement order, the brick must match the existing checkerwork arrangement, gas passages, contact pattern and installation orientation.
Highland Refractory can review requirements for hot blast stove regenerators, blast furnace stove checkerwork and other selected regenerative heating equipment. The technical review should consider the furnace or stove design, operating temperature, gas flow, regenerator position, chemical exposure, required physical properties and existing brick drawings.
The correct product is not selected by alumina content alone. Grade, geometry and installation conditions must be reviewed together before production.
High Alumina Checker Brick Grades and Technical Data
The following reference grades can be considered for project review. The final grade, test method, unit, tolerance and limit direction must be confirmed before production.
| Grade | Al2O3 | Refractoriness | Load Softening Start Temperature at 0.2 MPa | Apparent Porosity | Cold Crushing Strength | Bulk Density |
|---|---|---|---|---|---|---|
| RSGL-75 | ≥75% | Up to 1790°C* | ≥1500°C | ≤20% | ≥60 MPa | ≥2.5 g/cm3 |
| RSGL-65 | ≥65% | Grade-specific* | ≥1470°C | ≤22% | ≥55 MPa | ≥2.4 g/cm3 |
| RSGL-55 | ≥55% | Grade-specific* | ≥1450°C | ≤23% | ≥40 MPa | ≥2.3 g/cm3 |
| RSWPL-75 | ≥75% | Grade-specific* | ≥1520°C | ≤19% | ≥70 MPa | ≥2.6 g/cm3 |
* Reference values only. Confirm the final value and test method against the applicable Highland Refractory TDS.
Permanent linear change and chemical composition limits should also be checked against the final grade specification. If your project has a required alumina level, porosity limit, strength requirement or load-softening temperature, include it with your inquiry so the technical team can review the suitable option.
Custom Dimensions, Hole Patterns and Special Shapes
Checker brick geometry directly affects the fit and arrangement of the checkerwork. Highland Refractory can review standard or drawing-based requirements for:
- overall brick length, width and height;
- brick thickness and installation orientation;
- hole diameter and hole count;
- rectangular, round-hole or multi-hole patterns;
- dimensional tolerances;
- corner, edge and transition shapes;
- replacement quantities and batch requirements.
For custom high alumina checker bricks, production should be based on an approved drawing. The drawing should show the overall dimensions, hole geometry, hole size, hole count, tolerances, orientation, quantity and installation notes.
If a drawing is not available, you can send a clear photograph of the existing checker brick together with measured dimensions and hole information. The production team can then review whether additional technical details are required before quotation.
SEND YOUR CHECKER BRICK DRAWINGInformation Required for a Checker Brick Quotation
To prepare a more accurate checker brick quotation, please provide as much of the following information as possible:
- Furnace or hot blast stove type;
- Normal and maximum operating temperature;
- Regenerator section or installation position;
- Fuel, furnace atmosphere and chemical exposure;
- Gas velocity or flow information, where available;
- Required alumina grade or current brick grade;
- Required porosity, bulk density and cold crushing strength;
- Brick dimensions and hole pattern;
- Required quantity and replacement quantity;
- Destination port, required documents and delivery schedule.
A complete drawing and operating description help reduce specification errors and make it easier to review the correct checker brick grade and geometry.
REQUEST A TECHNICAL REVIEWQuality Documentation and Export Supply
Depending on the order requirements, the technical and shipping document package may include the applicable technical data sheet, certificate of analysis or conformity, inspection records, dimensional and hole-pattern inspection records, packing list and drawing confirmation.
Inspection requirements should be agreed before production. If third-party testing is required, the test scope, standard, sample method and reporting format should be confirmed in advance.
Packaging and loading should be matched to the brick dimensions, weight, hole geometry, pallet arrangement and container plan. The final packing method and shipping documents can be reviewed together with the product specification and destination requirements.
High Alumina Checker Brick Procurement FAQ
Can high alumina checker bricks be made according to a drawing?
Yes. Drawing-based production can be reviewed according to the required dimensions, hole pattern, tolerances, orientation, quantity and installation requirements. Manufacturability and final specifications should be confirmed before production.
Which information is needed for a checker brick quotation?
Please provide the required grade, dimensions, hole drawing, quantity, furnace or stove application, operating temperature, destination port, required documents and expected delivery schedule. A current checkerwork drawing or replacement-brick photograph can also help with the technical review.
Can the checker brick hole pattern be customized?
Hole diameter, hole count and hole pattern may be reviewed according to the project drawing and production requirements. Rectangular, round-hole, multi-hole and special-shaped requirements should be confirmed before quotation.
Which high alumina checker brick grades can be requested?
The reference grades include RSGL-75, RSGL-65, RSGL-55 and RSWPL-75. Final grade availability, technical values and suitability depend on the project specification and should be confirmed with the final technical data sheet.
Can you review a replacement checker brick?
Yes. Send the existing brick drawing, checkerwork layout or a clear photograph with measured dimensions. Include the installation position, current grade and required quantity where available.
Which technical documents can be requested?
Subject to the order requirements, available documents may include a technical data sheet, certificate of analysis or conformity, inspection records, packing list and drawing confirmation. Any third-party testing requirement should be agreed before production.
Need a Custom Checker Brick Specification?
Send your drawing, dimensions, hole pattern and project requirements for a technical review.
REQUEST A TECHNICAL QUOTATION

















