Fireclay Brick
Fire Clay Bricks | High Quality Refractory Bricks Manufacturer from China
Reliable Refractory Bricks for Industrial Furnaces, Kilns, Pizza Ovens and Foundry Applications.
• Temperature resistance up to 1400℃–1500℃
• Standard and customized sizes
• SK30, SK32, SK34 grades available
• OEM & Export Service

Product Description

Fire clay brick is one of the most widely used refractory materials. It offers good thermal stability, high compressive strength and excellent resistance to thermal shock, making it suitable for industrial furnaces and domestic heating applications.
Main Application

Available Grades
Fire clay bricks are available in different grades to meet various temperature requirements and furnace applications.
| Grade |
Al₂O₃ (%) |
Service Temp (℃) |
Typical Applications |
|
<a href="https://www.zkdrefractories.com/e_productshow/?15-High-Temperature-Firebricks-for-DIY--Commercial-Wood-Fired-Pizza-Ovens-15.html">SK30</a> |
30–35 |
1350 |
Pizza Oven, Fireplace |
|
<a href="https://www.zkdrefractories.com/e_productshow/?26-SK32-Fire-Clay-Brick-Supplier--Fire-Bricks-for-Industrial-Furnaces--Kilns-26.html">SK32</a> |
35–38 |
1400 |
Ceramic Kiln, Boiler |
|
<a href="https://www.zkdrefractories.com/e_productshow/?27-SK34-Fire-Clay-Brick-Manufacturer--High-Temperature-Refractory-Fire-Brick-27.html">SK34</a> |
38–42 |
1450 |
Industrial Furnace, Foundry |
Standard Size & Shape
Fire clay bricks are available in various standard and special shapes to meet different furnace and kiln construction requirements.
Standard Shape Information
| Shape |
Typical Application |
|
Straight Brick |
General Furnace and Kiln Linings |
|
Wedge Brick |
Circular Furnaces and Curved Structures |
|
Arch Brick |
Furnace Roofs and Arches |
|
Side Arch Brick |
Side Walls and Curved Sections |
|
Customized Shapes |
Special Designs According to Drawings |

Physical & Chemical Properties
| Item | SK-30 | SK-32 | SK-34 | SK-35 |
|
Al₂O₃% (≥) |
30 | 35 | 38 | 45 |
|
Fe₂O₃% (≤) |
2.5 | 2.5 | 2 | 2 |
|
Refractoriness(SK) |
30 | 32 | 34 | 35 |
|
Refractoriness underload, 0.2MPa, °C (≥) |
1250 | 1300 | 1360 | 1420 |
|
Apparent porosity (%) |
20~26 | 20~24 | 20~22 | 18~20 |
|
Bulk density (g/cm³) |
1.9~2.0 | 1.95~2.1 | 2.1~2.2 | 2.15~2.22 |
|
Cold crushing strength ,MPa (≥) |
40 | 45 | 30 | 40 |
Production Process
Raw Material → Crushing → Mixing → Pressing → Drying → High Temperature Firing → Inspection → Packing


Why Choose ZKD Refractories
• 20+ Years Experience
• OEM Sizes Available
• Strict Quality Control
• Fast Delivery
• Factory Direct Price
• Export to 60+ Countries
FAQ:
Q:What is fire clay brick?
A:Fire clay brick is a widely used refractory material with good thermal stability and mechanical strength, suitable for various industrial and residential applications.
Q:What temperature can fire clay brick withstand?
A:Depending on the grade, fire clay bricks can withstand service temperatures ranging from 1350°C to 1450°C.
Q:What is the difference between fire clay brick and high alumina brick?
A:High alumina bricks contain higher Al₂O₃ content and provide better refractoriness, while fire clay bricks offer a more economical solution for general applications.
Q:Can fire clay bricks be used for pizza ovens?
A:Yes. Fire clay bricks are widely used for wood-fired pizza ovens, bread ovens and BBQ ovens.
Q:Are fire clay bricks suitable for fireplaces?
A:Yes. They are commonly used in fireplaces, stoves and residential heating systems.
Q:What size are standard fire clay bricks?
A:Common sizes include 230 × 114 × 65 mm and 230 × 114 × 76 mm. Customized sizes are also available.
Q:Can custom shapes be manufactured?
A:Yes. Special shapes and dimensions can be produced according to customer drawings and requirements.
Q:How many bricks fit in one pallet?
A:For standard 230 × 114 × 65 mm fire clay bricks, one pallet typically contains about 500–600 bricks, depending on packaging requirements.
Q:How many tons fit in a 20GP container?
A:A 20GP container usually loads approximately 24–26 tons of fire clay bricks, depending on brick size and packaging method.
Zhengzhou Zhongkeda Refractory Materials Co., Ltd