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Porous Silica Brick

Porous Silica Brick
Porous Silica Brick
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Product Description

QINGDAO WESTERN COAST ADVANCED MATERIALS Co., Ltd. is a subsidiary company of Sunny Minerals (Qingdao) Co., Ltd. With special technology and experienced production method, QWCO provides a wide range of Mullite Insulating Bricks for the field of metallurgy, petroleum, ceramics, glass and other industrial furnace.

Brand Item GGR-1.00 GGR-1.10 GGR-1.15 GGR-1.20
Bulk Density ( g/cm 3  ) ≤ 1.00 1.10 1.15 1.20
Cold Crushing Strength (MPa) ≥ 2.0 3.0 5.0 5.0
Refractoriness under Load   0.2MPa  Ta ( º C ) ≥ 1400 1420 1500 1520
Permanent linear change % 1450 º C × 2h ≤ 0.5 1450 º C × 2h ≤ 0.5 1550 º C × 2h ≤ 0.5 1550 º C × 2h ≤ 0.5
Thermal conductivity (W/m. k)  350 º C ± 20 ≤ 0.55 0.60 0.65 0.70
Chemical analysis SiO 2  % ≥ 91 91 91 91
 

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