High strength and high aluminum refractory casting material

High strength and high aluminum casting materials have the characteristics of impermeability, corrosion resistance, impact resistance, wear resistance, and good mechanical properties, and are widely used in the front and rear arches, furnace tops, tail furnace walls, and other parts of power plant boilers and other thermal kilns.

Details

Physical and chemical indexes of products

Project /Model

Alumina cement castable

Phosphate castable

Aluminate (high aluminum) castable

DFJ

DFPJ

DFGLJ

Al2O3 (% )

≥60

≥65

≥70

Refractoriness (℃)

1730

1750

1770

Linear change rate after burning (%)

-0.40

-0.02

-0.40

Compressive strength
(Mpa)

110℃ ×24h

≥60

≥80

≥70

1100℃ ×4h

≥50

≥60

≥65

Flexural Strength
(Mpa)

110℃ ×24h

≥8

≥10

≥12

1100℃ ×4h

≥6

≥8

≥10

Properties of cementitious materials

hydraulicity

thermosetting

hydraulicity

Maximum service temperature (℃)

1300

1200

1400

Performance characteristics

Quick demolding and high strength

Wear resistance and thermal shock resistance

Convenient construction and long service life

Used Part

Flare angle, air chamber, economizer guard board, fire door and other parts

Note: 1. 2% stainless steel heat-resistant fibers can be added according to the usage situation.

2. Performance technical indicators can be adjusted according to usage conditions. 

Refractory materials with different indicators can be customized according to demand. Call 400-188-3352 for details