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{"title":"SK32 SK34 SK35 SK36 SK38 Fire Clay Brick High Temperature Furnace Refractory","imgUrl":"https:\/\/img.chinax.com\/nimg\/b0\/42\/2cea3a32adca69a3c1ad52d858b2-200x200-1\/sk32_sk34_sk35_sk36_sk38_fire_clay_brick_high_temperature_furnace_refractory_bricks.jpg","attrs":{"Brand Name":"LEADSUN","Model Number":"SK32 SK34 SK35 SK36 SK38","Certification":"ISO CE","Place of Origin":"China"}}
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SK32 SK34 SK36 SK38 Clay Brick Fire Refractory Kiln Fire Bricks
Product Overview
Frie Caly fire bricks are specialized refractory ceramics engineered to withstand extreme temperatures, thermal shock, and corrosive environments. Manufactured from high-alumina fire clay with chamotte and refractory additives, these bricks are fired above 1,400°C to create a dense, stable structure with excellent resistance to spalling, slag attack, and creep under sustained heat.
Technical Specifications
Item
SK-30
SK-32
SK-34
SK-36
AL2O3 % (min)
30-35%
35-38%
38-42%
50-55%
Fe2O3% (max)
3
3
2.8
2.5
Refractoriness
≥1670°C
≥1690°C
≥1710°C
≥1750°C
Refractoriness under load, 0.2MPa, (°C)
≥1270
≥1350
≥1350
≥1430
Apparent porosity (%)
20-24
20-24
19-23
18-22
Bulk density (g/cm³)
2.00-2.05
2.05-2.1
2.1-2.15
2.15-2.25
Cold crushing strength (MPa)
≥25
≥30
≥35
≥45
Thermal expansion at 1000°C (%)
≤0.6
≤0.55
≤0.55
≤0.4
Performance Characteristics
Frie Caly fire bricks offer superior thermal performance, continuously enduring operating temperatures from 1,200°C to over 1,600°C depending on alumina content. Their low thermal conductivity provides effective insulation, retaining heat within furnaces while keeping external surfaces safer. The carefully matched thermal expansion coefficient reduces cracking risk during rapid heating or cooling cycles.
Applications
These refractory bricks are extensively used in steelmaking furnaces, glass tanks, cement rotary kilns, incinerators, petrochemical crackers, wood-fired ovens, pizza ovens, residential fireplaces, and forge floors. Their chemical resistance makes them suitable for chimneys exposed to acidic flue gases.
Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia... Our products cover heavy & light shaped and unshaped refractories, and are widely used in power, steel & iron, non-ferrous, petrochemicals, building materials and other industries, and are exported to more than 30 countries and regions in Europe, America, Africa, Oceania, Southeast Asia...
