Product Details:
Payment & Shipping Terms:
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Apparent Porosity:: | 20-22% | Cold Crushing Streng: | 60Mpa |
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Bulk Density:: | 2.4-2.6g/cm3 | Product Name:: | Insulating Brick |
Model Number:: | Customer's Requirement | Refractoriness (Degree):: | 1580°< Refractoriness< 1770° |
Bulk Density:: | 1.9-2.15g/cm3 | ||
High Light: | k23 insulating firebrick,basic refractory bricks |
Mullite Bonded Corundum Brick For Back-up Insulation For Furnaces And Kilns
Product Description:
Mullite insulation bricks are made from good quality and super pure raw materials, with strictly classified fillings according to their grades. These fillings can form a uniform pore structure after burnt during the process of production. Each grade of products has unique design to meet different thermal, physical and chemical demands.
The most competitive price,good quality,safety packing,prompt delivery time,and excellent after-sales services.
Lighter weight,Low thermal conductivity,low impurities,high insulating properties,high CCS and exact tolerance.
Item | Unit | Wear-resistant refractory brick | |||
NMZ-1 | NMZ-2 | NMZ-3 | |||
Chemical composition | Al2O3 | % | ≥85 | ≥75 | ≥65 |
SiO2 | % | ≤15 | ≤25 | ≤35 | |
Fe2O3 | % | <1.0 | ≤1.2 | ≤1.5 | |
Density | g/cm3 | ≥2.9 | ≥2.6 | ≥2.5 | |
Compressive strength (normal temperature) | Mpa | ≥100 | ≥85 | ≥70 | |
Apparent porosity | % | ≤18 | ≤20 | ≤21 | |
Abrasion resistance | cc | ≤6 | ≤7 | ≤8 | |
Refractoriness | ℃ | ≥1790 | ≥1790 | ≥1790 | |
Linear change on heating (900℃×3h) |
% | ≤0.05 | ≤0.1 | ≤0.1 | |
Thermal conductivity(350℃) | w/m.k | ≤1.8 | ≤1.8 | ≤1.5 | |
Thermal shock stability(1100℃Water cooling) | 次 | 20 | 20 | 20 |
Packing of Insulating brick: Standard export wooden pallet with cardboard.
Shipping of Insulating brick: By vessel or by train from any Chinese port,
Samples can be delivered by International express.
Contact Person: Pan Junhui
Tel: +86 15861509962
Fax: 86-0510-87441369