Castables

Silcast HS 96

Silcast HS 96 is a high hot strength, high purity castable with excellent thermal shock resistance, hot load stability and resistance to penetration by molten metals due to its low porosity. This product is excellent for Well Block, Gas Purging Blocks, Ladle Bottoms and Furnace Roofs.

Max Service  Temperature – 3410°F

Material Required – 198 lbs/ft3

Hot Modulus of Rupture –  at 2450°F – 2375 lbs/in2

Hot Modulus Rupture – at 2700°F – 3500 lbs/in2

Permanent Linear Change at 2910°F – .4%

Porosity after 2910°F – 17.50%

 Chemistry

Alumina  96.6 %
Silica .1 %
Iron Oxide .1 %
Lime 2.0 %
Magnesia  .9 %
Alkalies .15 %

Silcast HS 45

Silcast 45 HS is a low cement castable with excellent thermal shock resistance, hot load stability and resistance to penetration by molten metals due to its low porosity.

Max Service  Temperature – 3000°F

Material Required – 148 lbs/ft3

Hot Modulus of Rupture –  @ 2450°F = 2400 lbs/in2 | @ 2700°F = 2200 lbs/in2

Permanent Linear Change at 2900°F – .1%

Porosity after 2900°F – 17.50%

 Chemistry

Alumina  44.0 %
Silica 50.1 %
Iron Oxide 1.2 %
Lime 2.4 %
Magnesia  1.3 %
Titania 1.2 %
Alkalies .15 %

Silcast HS 60

Silcast HS is a low cement castable  with excellent thermal shock resistance, hot load stability and resistance to penetration by molten metals due to its low porosity. This product can be used in several applications i.e. Tundish Back-up Linings.

Max Service  Temperature – 3200°F

Material Required – 160 lbs/ft3

Hot Modulus of Rupture –  at 2450° F – 2000 lbs/in2

Permanent Linear Change at 2900°F – 1.2 %

Porosity after 2900°F – 16.5%

 Chemistry

Alumina  61.0 %
Silica 35.3 %
Iron Oxide .75 %
Lime 1.5 %
Titania 1.3 %
Alkalies .15 %

Silcast HS 94

Silcast HS 94 is a high hot strength, high purity castable with excellent thermal shock resistance, hot load stability and resistance to penetration by molten metals due to its low porosity. This product is excellent for Well Block, Gas Purging Blocks, Ladle Bottoms and Furnace Roofs.

Max Service  Temperature – 3410°F

Material Required – 192 lbs/ft3

Hot Modulus Rupture – at 2700°F – 3450 lbs/in2

Permanent Linear Change at 2910°F – .4%

Porosity after 2910°F – 17.50%

 Chemistry

Alumina  94.6 %
Silica 2.1 %
Iron Oxide .1 %
Lime 2.0 %
Magnesia .9 %
Alkalies .15 %

Silcast HS ( SI-96 )

A low cement castable refractory made with a high grade fused  silica aggregate with excellent abrasion resistance and good thermal shock resistance in cycling applications.

Max Service  Temperature – 2400°F

Material Required – 118 lbs/ft3

Hot Modulus of Rupture –  at 230°F – 1350 lbs/in2

Permanent Linear Change at 1500°F – 0.3%

 Chemistry

Silica 96.2 %
Alumina  .7 %
Iron Oxide .1 %
Lime 2.6 %
Magnesia .2 %
Titania .1 %
Alkalies .1 %

Silcast HS 60

Silcast HS is a low cement castable  with excellent thermal shock resistance, hot load stability and resistance to penetration by molten metals due to its low porosity. This product can be used in several applications i.e. Tundish Back-up Linings.

Max Service  Temperature – 3200°F

Material Required – 160 lbs/ft3

Hot Modulus of Rupture – at 2450°F – 2000 lbs/in2

Permanent Linear Change at 2900°F – 1.2 %

Porosity after 2900°F – 16.5%

 Chemistry

Alumina 61.0 %
Silica 35.3 %
Iron Oxide .75 %
Lime 1.5 %
Titania 1.3 %
Alkalies .15 %

Silcast HS 70

Silcast HS 70 is a low cement castable with excellent thermal shock resistance, hot load stability and resistance to penetration by molten metals due to its low porosity. This product can be used in several applications i.e. Tundish Back-up linings.

Max Service  Temperature – 3200°F

Material Required – 165 lbs/ft3

Hot Modulus of Rupture – at 2450°F – 2100 lbs/in2

Permanent Linear Change at 2900°F – 1.2%

Porosity after 2900°F – 16.50%

Chemistry

Alumina 70.0 %
Silica 27.3 %
Iron Oxide .75 %
Lime .5 %
Alkalies .15 %

Silcast HS (92-SI)

A Vitreous based castable with excellent density and outstanding thermal shock resistance.

Max Service  Temperature
Cycling Conditions   2000°F
Constant Temperature 3000°F

Material Required – 114 lbs/ft3

Hot Modulus of Rupture
After drying @ 230°F  - 1300 lb/in2
After Heating @ 1500°F – 800 lb/in2

Crushing Strength
After drying  @ 230°F  - 6800 lb/in2
After Heating @ 1500°F – 3350 lb/in2

Permanent Linear Change at 1500°F – 0.2% | at 2700°F  - 0.7 %

Porosity after 2900°F – 16.50%

 Chemistry

Silica 96.2 %
Alumina .7 %
Iron Oxide .1 %
Lime 2.6 %
Magnesia .2 %
Titania .1 %
Alkalies .1 %