Light Weight Fire Clay Insulation Brick B1 / B2 Series For Boiler Furnace Lining

Price Negotiable
Price: Negotiable
MOQ: 500 pcs
Delivery Time: 10 days
Brand: SUNWOOL
Product Description
Light Weight Fire Clay Insulation Brick – B1/B2 Series for Boiler  Furnace Lining
Our B1/B2 series Light Weight Fire Clay Insulation Brick is a premium refractory material engineered for superior thermal management in high-temperature industrial environments, particularly in boiler insulation and furnace lining. Manufactured from super-pure raw materials with strictly classified fillings, our bricks significantly reduce structural load and heat storage while maintaining excellent thermal shock resistance and long service life.
With a standard size of 230*114*65mm, low bulk density (0.60-1.25 g/cm³), and working temperatures from 900°C to 1600°C, our lightweight insulation bricks provide a cost-effective solution to reduce fuel consumption, construction costs, and furnace downtime.
Technical Specifications
Item B-1 B-2 B-3 B-4 B-5 B-6 B-7 C-1 C-2 C-3
≤ 2.0% Reheating Shrinkage Temp (℃) 900 1000 1100 1200 1300 1400 1500 1300 1400 1500
Bulk Density (g/cm³) 0.70 0.70 0.75 0.80 0.80 0.90 1.00 1.10 1.20 1.25
Cold Crushing Strength (kg/cm²) 25 25 25 25 25 30 30 50 70 100
Thermal Conductivity at 350℃ (W/m·k) 0.17 0.18 0.20 0.22 0.23 0.27 0.31 0.30 0.38 0.45
Why Choose Our Products?
  • Energy Efficiency: Extremely low thermal conductivity minimizes heat loss and significantly reduces fuel costs.
  • High-Temperature Stability: Exceptional resistance to creep and thermal shock under rapid temperature fluctuations.
  • Lightweight & Durable: Low bulk density eases handling and installation while maintaining adequate cold crushing strength.
  • Precision Engineered: Each face is machined to accurate dimensions for tight, easy installation.
  • Chemical Inertness: Resistant to most industrial atmospheres, ideal for harsh furnace environments.
Primary Applications
  • Boiler Insulation & Furnace Lining: Primary application for heat containment and structural protection.
  • Ceramic Roller Kilns & Reheating Furnaces: Continuous firing processes requiring stable thermal insulation.
  • Blast Furnaces & Petrochemical Furnaces: High-temperature zones with demanding thermal and chemical conditions.
  • General Industrial Furnaces: Heat treatment equipment, kiln doors, roofs, and backup insulation layers.
  • Chimney Construction: Reliable insulation performance in vertical high-temperature flue structures.
Light Weight Fire Clay Insulation Brick product image showing installation in industrial furnace Close-up view of Light Weight Fire Clay Insulation Brick showing texture and structure
Frequently Asked Questions (FAQ)
Q1: How do I select the right grade for my furnace?
Selection depends on maximum operating temperature, bulk density requirements, and thermal cycling frequency. For example, B-1 to B-5 are suitable for 900-1300°C applications, while B-6 to C-3 handle up to 1500°C. Please provide your design specifications for a tailored recommendation.
Q2: Can you provide custom shapes and sizes?
Yes, we offer customizable shapes (standard, special-shaped, and arch bricks) based on your CAD drawings to ensure a perfect fit for your equipment.
Q3: What is the typical delivery period?
Standard delivery is 10-15 days. MOQ is 500 pieces, and our supply capacity is 1,000 tons/month.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Qingdao Leadsun Refractory Co., Ltd
Location No. 700, Qingshan Road, Licang District, Qingdao, China
Contact Person Tony

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