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High-alumina gravitational flow fire-resisting casting material

product Overview:   High-alumina gravitational flow fire-resisting casting material is a high-performance Casting material made from high-quality high-alumina clinker, plus fine powder and additives. It has the advantages of good fluidity and convenient construction. According to the physical and chemical indicators are divided into SF50, SF55, SF60, SF65 four brands.
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Product Description

  product Overview:

 

  High-alumina gravitational flow fire-resisting casting material is a high-performance Casting material made from high-quality high-alumina clinker, plus fine powder and additives. It has the advantages of good fluidity and convenient construction. According to the physical and chemical indicators are divided into SF50, SF55, SF60, SF65 four brands.

 

  Physical and chemical indicators:

 

Item SF50 SF55 SF60 SF65
Al2O3            %           ≥ 50 55 60 65
Bulk Density(110 ℃×24h)  g/cm³  ≥ 2.25 2.3 2.35 2.4
Compressive strength at room temperature     Mpa        ≥ 110 ℃×24h 30 35 40 40
1350 ℃×3h 50 55 60 65
Flexural strength at room temperature    Mpa        ≥ 110 ℃×24h 5 6 6 6
1350 ℃×3h 7 9 9 10
Heating permanent line change rate       %      ≤ 110 ℃×24h ±0.2 ±0.2 ±0.2 ±0.2
1350 ℃×3h ±0.5 ±0.5 ±0.5 ±0.5
Arterial value        mm 170~210(Artesian method);200~220(Table jumping)

 

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