Sk34 Refractory High Alumina Brick for Reheating Furnace 45 Percent Al2O3

• Customization: Available
• Classification: Clay
• Feature: Good Mechanical Strength, Good Thermal Insulation Performance, High-Temperature Resistant, Low Thermal Conductivity, Long Time Materials
• Model NO.: SK38, SK35, SK40, SK36, SK37
• Production Process: Extrusion Method
• Refractoriness (℃): 1580< Refractoriness< 1770
• Shape: Brick
• Type: Refractory Material
• Material: Alumina Block
• Al2O3: 48%~85%
• Size: Customizable
• Certifiacte: ISO9001, CE, etc
• Refractoriness: Sk35, Sk36, Sk37, Sk38, Sk40
• Apparent Porosity: 20-23%
• Bulk Density: 2.25-2.65g/cm3
• Refractoriness Under [email protected]: 1380-1550
• Thermal Linear Expansion@1000deg: 0.6%
• Fe2o3: 1.8-2.0%
• Transport Package: Sea-Worthy Wooden Pallet
• Specification: 230*114*64mm or 230*114*76mm
• Trademark: jucos
• Origin: China
• HS Code: 6902200000
• Production Capacity: 20000mt/Year
• Package Size: 110.00cm * 110.00cm * 110.00cm
• Package Gross Weight: 1000.000kg

Product Description

Product Description

SK34 high alumina refractory brick is manufactured from high-grade bauxite through high temperature firing. With approximately 45% Al2O3 content, it offers stable performance under medium to high temperature working conditions.

It is widely used in reheating furnaces, rotary kilns, steel plants and general industrial furnace lining where high strength and thermal stability are required.

Features

Al2O3 content around 45%
High refractoriness and stable structure
Good thermal shock resistance
High cold crushing strength
Low apparent porosity
Precise size with small tolerance
Long service life under continuous operation

Applications

Reheating furnace lining
Cement rotary kiln transition zone
Steel plant furnace
Industrial kiln wall and roof
Glass furnace backup lining

Brand Properties		SK-40	SK-38	SK-37	SK-36	SK-35
Refractoriness (SK)		40	38	37	36	35
Apparent Porosity (%)		22	23	23	23	23
Bulk Density (g/cm3)		2.65	2.40	2.35	2.30	2.25
Cold Crushing Strength(MPa)		70	52	50	45	40
Thermal Linear Expansion(%)   @1000deg		0.6	0.6	0.6	0.6	0.6
Permanent LinearChange(%) @1400degx2hrs		±0.2	±0.3	±0.3	±0.3	±0.3
Refractoriness under Load (ºC)@0.2MPa		1,530	1,500	1,450	1,420	1,380
Chemical Composition (%)	Al2O3	80	72	60	50	46
	Fe2O3	1.8	2.0	2.0	2.0	2.0
Main Applications		- Nonferrous Metal Furnace - Rotary & Shaft Kiln - Various Incinerator - Reheating Furnace - Permanent Lining For EAF Ladle - General Industrial Furnace etc.

Q1: What is the difference between SK32, SK34 and SK36?
A: The difference is the Al2O3 content and temperature resistance. Higher SK grade means higher alumina and better heat resistance.

Q2: What is the working temperature?
A: Depending on grade, working temperature ranges from 1350°C to 1550°C.

Q3: What sizes are available?
A: Standard size is 230×114×65 mm. Custom sizes and shapes are available.

Q4: Where can these bricks be used?
A: Suitable for reheating furnaces, kilns, boilers and general industrial furnace lining.

Q5: What information is needed for quotation?
A: Please provide grade, size, quantity and application.