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Crown Ceramics

Crown Ceramics
Wankaner, Rajkot, Gujarat

gstGST : 24ADYPP3588K1ZK Verified Add Review
Call 08068051368 Ext. 890

Our Products

  1. Bricks 10 Products available
  2. Ores And Minerals 4 Products available

  3. Refractory Bricks

    1 Products available

  4. Blankets

    1 Products available

  5. Cement

    1 Products available

Bricks

Leading Manufacturer, Supplier & Retailer of Acid Proof Fire Bricks, High Alumina Bricks, Shoulder & Hanger Bricks, Fire Bricks High Alumina Bricks and Magnesite Bricks.

Acid Proof Fire Bricks

Acid Proof Fire Bricks

We manufacture Acid Resistant Bricks, which are brown/Grey in colour for IS-4860 and white in colour for IS-4457 standard. The colour of the bricks does not have impact on the performance of the bricks. These bricks have good density and low water absorption and low porosity. Very high cold crushing strength, High resistance to strong acids (except hydroflouric acid) and partial resistance to alkalies are the important technical parameters of these bricks. These bricks are used in various industrial applications like Chemical Storage Tanks, Absorption towers, Process Tanks, Flooring, vessels, Chimney lining etc. in Chemical, Dyes and Intermediates, Alkalies, Fertilizers, Petrochemicals, Paper, Power and Steel Plants, and many more.

The Different types of Acid Proof Bricks have been mentioned further with different laboratory details.

Product Chemical Physical
SIO2% AI2O3% min Fe2O3% max TiO2% CaO+MgO % Na2O+k2O% Water Absorption % max. C.C.S kg/cm2 % Flexural straenth kg/cm2 Acid resi stance % loss inwt.
Crown-AP Class I 68.2 24 1.8 2.1 0.5 3.4 2 700 100 0.8
Crown-AP Class II 68.2 24 1.8 2.1 0.5 3.4 4 500 75 0.75
 

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High Alumina Bricks

High Alumina Bricks
  • Shape Oval, Square, Rounded
  • Size Various
  • Application Construction
  • Color Grey, Light Brown
  • Standard Size 230x115x75 mm
  • Alumina 28-70%
  • Shapes Different
  • Thickness 5-10 MM
  • The technical data pertains to machine pressed standard bricks in compliance with the testing standard. These data are typical approximate guide value. Not to be construed as a binding specification.
  • Size tolerance ±1.% or 1.5mm whichever is greater.
  • Bricks with properties of higher values available where applications require the same.
  • The Different types of High Alumina Bricks have been mentioned further with different laboratory details.

Technical Specification

AI2O3% min Fe2O3% min PCE O.C B.D. Gm/cc AP% Max. CCS kg/cm2 R.U.L Ta.C min PLC% max AT/2hrs Characteristics & Users -
Crown-30 30 2.5 30 2 25 200 1300 1350±1.0 General Purpose medium head duty bricks
Crown-40 40 2.5 32 2.05 25 200 1400 1400±1.0 General Purpose High heat duty bricks
Crown-GH 36 2.5 31 2 24 200 1400 1400±0.5 Fireclay blocks/bricks glass melting furnace
Crown-42D 43 2 32 2.25 19 400 1430 1400±0.5 General Purpose coke over,blast furnace
Crown-45 45 2.5 34 2.25 23 300 1450 1450±1.0 Super duty bricks for general Purpose
Crown-45D 45 1.5 33 2.3 20 450 1470 1480±0.5 General Purpose Coke over, blast furnace
Crown50B 50 2.5 35 2.3 22 350 1430 1450±1.0 Suitable for burning zone of cement rotary kiln,ladle lining
Crown-60B 60 3 36 2.5 23 350 1430 1600±1.0 Suitable for burning zone of cement rotary kiln,ladle lining
Crown-62D 62 1.2 - 2.55 16 650 1580 1600±0.3 Blast furnace, coke over, calcination & ceramic industry
Crown-70B 70 3 36 2.65 23 400 1470 1600±0.3 Suitable for burning zone of cement rotary kiln,ladle lining
Crown-70L 70 2.5 36 2.65 22 450 1450 1600±0.3 Suitable for burning zone of cement rotary kiln,ladle lining
Crown-70SD 70 1.5 37 2.65 22 450 1550 1600±0.5 Dense,suitable for reducing atmosphere of rotary kiln and glass industry
Crown-80B 80 3.5 36 2.75 23 400 1500 1600±1.0 Special application in refineries petrochemicals etc.
Crown-80SD 80 1.6 37 2.75 19 700 1580 1600±1.0 Special application in refineries petrochemicals,Steel ladles etc.
Crown-SMT 56 1.5 36 2.35 21 450 1500 1500±0.5 For glass tank furnace, blast furnace, stove checker.
Crown-90S 90 1 - 3 16 900 1720 1700±0.1 Blast furnace hearth
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Shoulder & Hanger Bricks

Shoulder & Hanger Bricks
  • Shape Square, Rounded, Oval
  • Application Construction
  • Color Light Brown, Grey
  • Standard Size 230x115x75 mm
  • Alumina 28-70%
  • Thickness 5-10 MM
  • Al2O3 13-15%
  • Volume density ,g/cm3 ≥2.98

We manufacture High Alumina Hanger and Shoulder Bricks for reheating furnace roof. All known as roof sets. These bricks are easy to install and easy to maintain in longer run and make life of your roof easy.

Technical Specification

Product AI2O3% min Fe2O3% min PCE O.C. GM/cc min B.D A.P% Max. Kg/cm2 ccs RUL TA C MIN PLC% MAX AT/2 hrs
Crown-40 40 2.2 32 2.1 23 250 1400 1400±1.0
Crown-50b 50 2.5 35 2.3 22 350 1430 1450±1.0
Crown-70b 70 3 36 2.65 23 400 1470 1600±0.3
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Fire Bricks High Alumina Bricks

Fire Bricks High Alumina Bricks

We manufacture and export Fire Clay & High Alumina Bricks. Alumina is an excellent engineering ceramic, offering excellent electrical insulation properties together with high hardness and good wear resistance but relatively low strength and fracture toughness. It is also an electrically insulating material, with a high electrical resistivity, increasing with purity.

The technical data pertains to machine pressed standard bricks in compliance with the testing standard. These data are typical approximate guide value. Not to be construed as a binding specification.

Size tolerance ±1.% or 1.5mm whichever is greater.

Bricks with properties of higher values available where applications require the same.

The Different types of High Alumina Bricks have been mentioned further with different laboratory details.

 

 

Sr.No Product AI2O3% min Fe2O3% min PCE O.C B.D. Gm/cc AP% Max. CCS kg/cm2 R.U.L Ta.C min PLC% max AT/2hrs Characteristics & Users
1 Crown-30 30 2.5 30 2 25 200 1300 1350±1.0 General Purpose medium head duty bricks
2 Crown-40 40 2.5 32 2.05 25 200 1400 1400±1.0 General Purpose High heat duty bricks
3 Crown-GH 36 2.5 31 2 24 200 1400 1400±0.5 Fireclay blocks/bricks glass melting furnace
4 Crown-42D 43 2 32 2.25 19 400 1430 1400±0.5 General Purpose coke over,blast furnace
5 Crown-45 45 2.5 34 2.25 23 300 1450 1450±1.0 Super duty bricks for general Purpose
6 Crown-45D 45 1.5 33 2.3 20 450 1470 1480±0.5 General Purpose Coke over, blast furnace
7 Crown50B 50 2.5 35 2.3 22 350 1430 1450±1.0 Suitable for burning zone of cement rotary kiln,ladle lining
8 Crown-60B 60 3 36 2.5 23 350 1430 1600±1.0 Suitable for burning zone of cement rotary kiln,ladle lining
9 Crown-62D 62 1.2 - 2.55 16 650 1580 1600±0.3 Blast furnace, coke over, calcination & ceramic industry
10 Crown-70B 70 3 36 2.65 23 400 1470 1600±0.3 Suitable for burning zone of cement rotary kiln,ladle lining
11 Crown-70L 70 2.5 36 2.65 22 450 1450 1600±0.3 Suitable for burning zone of cement rotary kiln,ladle lining
12 Crown-70SD 70 1.5 37 2.65 22 450 1550 1600±0.5 Dense,suitable for reducing atmosphere of rotary kiln and glass industry
13 Crown-80B 80 3.5 36 2.75 23 400 1500 1600±1.0 Special application in refineries petrochemicals etc.
14 Crown-80SD 80 1.6 37 2.75 19 700 1580 1600±1.0 Special application in refineries petrochemicals,Steel ladles etc.
15 Crown-SMT 56 1.5 36 2.35 21 450 1500 1500±0.5 For glass tank furnace, blast furnace, stove checker.
16 Crown-90S 90 1 - 3 16 900 1720 1700±0.1 Blast furnace hearth
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Magnesite Bricks

Magnesite Bricks
  • Resistance Durability Heat Resistant
  • Material Magnesite
  • Color Black
  • Shape Rectangular
  • Working Temperature 1400 Degree C
  • Chemical Properties Mg0 - 85%-95%

Technical Specification

Product Mgo Fe2O3 Sio2 A.P. CCS.. Kg/cm2Max. R.U.L. Ta. c PLC at 16000. C/ 2hrs. Application
Crown-MGN 85 - 6.5 22 400 1560 0.5 For Steel Plant, General Purpose Use
Crown-MGT 87 - 6 22 450 1600 0.5 For Steel Plant, BOF/eaf,,Copper Refineries
Crown-MGD 92 0.5 3 16 1600 1620 0.5 Low Iron Dense Brick, Generator, Chemical Industry And Other Applications
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Fire Bricks Acid Proof / Resistant Bricks

Fire Bricks Acid Proof / Resistant Bricks

Raw Material

  • Sodium Silicate base power & solution
  • Potassium silicate base powder & solution
  • Furan resin powder & syrup
  • Bitumin 90/15 grade & primer
  • Mastik powder (A.R)

Product Chemical Physical
SIO2% AI2O3% min Fe2O3% max TiO2% CaO+MgO % Na2O+k2O% Water Absorption % max. C.C.S kg/cm2 % Flexural straenth kg/cm2 Acid resi stance % loss inwt.
Crown-AP Class I 68.2 24 1.8 2.1 0.5 3.4 2 700 100 0.8
Crown-AP Class II 68.2 24 1.8 2.1 0.5 3.4 4 500 75 0.75
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Insulation Bricks

Insulation Bricks
  • Shape Rectangle
  • For Use in Floor, Side Walls, Partition Walls, Roof
  • Density 1.5 gm/cm3
  • Form Solid
  • Dimensions 9 x 4.5 x 3 inches
  • Feature Superior Finish

Technical Specification 01

Product AL2O3 %MIN Fe2O3 B.d Gm/cc A.P % Max. CCS Kg/cm2 Thermal Conductivity at 600. c mean temp W/MK Refractoriness Orton Service Temp. PCE
Crown S-LW 30 2.5 1.1 55 30 0.45 30 1200 -
Crown S-CFI 30 2.5 0.8 65 15 0.35 30 1250 -
Crown S - HFI 30 2.5 0.9 60 20 0.4 30 1300 -
Crown S - HFK 30 2.5 1.1 55 40 0.5 32 1400 -
Crown S - P100 40 1.5 1 60 40 0.4 32 1450 -
Crown - CFI 28 2 0.8 70 15 0.19 28 1100 -
Crown - HFI 35 2 1.1 60 40 0.3 30 1300 -
Crown - MICA500 - - 0.5 80 7 0.14 - 1300 -
Crown - MICA600 - - 0.65 75 9 0.16 - 1050 -
INSB110 20 2 1 60 25 0.25 - 1100 20
INSB135 30 2 1 60 25 0.3 - 1350 29
INSB140 40 2 1 60 25 0.3 - 1400 30
Porosint1550 60 1 1.1 - 30 0.4 - 1550 37
Prosin1650 70 0.8 1.2 - 40 0.45 - 1650 37

Technical Specification 02

Insulating Fire Bricks (IFB)
Insulation firebricks have low thermalconductivity and low heat storage properties. They may be used as the hot face layer ot as backing insulation for dense bricks. Range from Grade 23 to Grade 30.
Classification Temperature
Clasificacion de Temperature
Klassifizierung Temperatur
Temperature de Classification
Temperature Klasyfikscyjns		 IFB 23 IFB 26 IFB 28 IFB 30
1260 . C 
2300 . F 		 1430 . C 
2600 . F 		 1540 . C 
2800 . F 		 1650 . C 
3000 . F 
Colour
Color 
Farbe 
Couleur 
Kolor 		 White White White White
Chemical Analysis (%)
Composixion quimica 
Chemische Analyse 
Composition Chimique 
Sklad Chemiczny 		        
AI2O3 38 57 62 72
SiO2 43 39 37 26
ZrO2 - - - -
Fe2O3 0.9 0.7 0.6 0.5
Cr2O3 - - - -
TiO3 1.2 0.1 0.1 0.1
CaO 15.2 0.1 0.1 -
MgO3 0.3 0.2 0.1 -
Bulk Density
Densidad aparente
Rohdichte
Masse Volumique aparente
Gestosc pozorna		 kg/m3 600 800 900 1000
lb/ft3 37.5 50 56.2 62.4
Cold Crushing Strengh (MPa)
Resistencia a la compresion
Kaltdruckfestigkeit
Resistance a la pression
Wytrzymalosc na sciskanie		 1.2 1.6 2.1 2.2
Thermal Conductivity (W/mK)
Conductividad termica
Warmeleitfahigkeit
Conductivite thermique
Przewodnose cieplna		 600.C / 1110.F 
1000.C / 1830.F		 0.14 
0.19		 0.27 
0.33		 0.32 
0.36		 0.39 
0.41
Permanent Linear Change
Combio lineal permanente
Lineare Schwindung nach 3 Stunden
Retrait lineaire continue apres la cuisson de 3 heures
staly skurcz liniowy po wypalaniu 3 godz.		 (3h) 1260.C / 2300 .F 
(3h) 1370.C / 2500 .F
(3h) 1470.C / 2670 .F
(3h) 1530.C / 2780 .F		 <0.6 
- 
- 
- 		 - 
<0.6 
- 
- 		 - 
- 
<0.8 
- 		 - 
- 
- 
<0.8 




















































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Acid Proof Bricks

Acid Proof Bricks
  • Shape Rectangular
  • Color Brown, Gray
  • Resistance Durability Fire Resistant
  • For Use in Side Walls, Partition Walls
  • Size (Inches) 9 In. X 4 In. X 3 in.
  • Apparent Porosity 11%
  • Bulk Density 2.4g/cm3

Raw Material

  • Sodium Silicate base power & solution
  • Potassium silicate base powder & solution
  • Furan resin powder & syrup
  • Bitumin 90/15 grade & primer
  • Mastik powder (A.R)

Technical Specification

Product Chemical Physical
SIO2% AI2O3% min Fe2O3% max TiO2% CaO+MgO % Na2O+k2O% Water Absorption % max. C.C.S kg/cm2 % Flexural straenth kg/cm2 Acid resi stance % loss inwt.
Crown-AP Class I 68.2 24 1.8 2.1 0.5 3.4 2 700 100 0.8
Crown-AP Class II 68.2 24 1.8 2.1 0.5 3.4 4 500 75 0.75
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Fire Bricks

We manufacture and export Fire Clay & High Alumina Bricks. Alumina is an excellent engineering ceramic, offering excellent electrical insulation properties together with high hardness and good wear resistance but relatively low strength and fracture toughness. It is also an electrically insulating material, with a high electrical resistivity, increasing with purity.

The technical data pertains to machine pressed standard bricks in compliance with the testing standard. These data are typical approximate guide value. Not to be construed as a binding specification.

Size tolerance 1.% or 1.5mm whichever is greater.

Bricks with properties of higher values available where applications require the same.

The Different types of High Alumina Bricks have been mentioned further with different laboratory details.

Sr.No Product AI2O3% min Fe2O3% min PCE O.C B.D. Gm/cc AP% Max. CCS kg/cm2 R.U.L Ta.C min PLC% max AT/2hrs Characteristics & Users
1 Crown-30 30 2.5 30 2 25 200 1300 1350±1.0 General Purpose medium head duty bricks
2 Crown-40 40 2.5 32 2.05 25 200 1400 1400±1.0 General Purpose High heat duty bricks
3 Crown-GH 36 2.5 31 2 24 200 1400 1400±0.5 Fireclay blocks/bricks glass melting furnace
4 Crown-42D 43 2 32 2.25 19 400 1430 1400±0.5 General Purpose coke over,blast furnace
5 Crown-45 45 2.5 34 2.25 23 300 1450 1450±1.0 Super duty bricks for general Purpose
6 Crown-45D 45 1.5 33 2.3 20 450 1470 1480±0.5 General Purpose Coke over, blast furnace
7 Crown50B 50 2.5 35 2.3 22 350 1430 1450±1.0 Suitable for burning zone of cement rotary kiln,ladle lining
8 Crown-60B 60 3 36 2.5 23 350 1430 1600±1.0 Suitable for burning zone of cement rotary kiln,ladle lining
9 Crown-62D 62 1.2 - 2.55 16 650 1580 1600±0.3 Blast furnace, coke over, calcination & ceramic industry
10 Crown-70B 70 3 36 2.65 23 400 1470 1600±0.3 Suitable for burning zone of cement rotary kiln,ladle lining
11 Crown-70L 70 2.5 36 2.65 22 450 1450 1600±0.3 Suitable for burning zone of cement rotary kiln,ladle lining
12 Crown-70SD 70 1.5 37 2.65 22 450 1550 1600±0.5 Dense,suitable for reducing atmosphere of rotary kiln and glass industry
13 Crown-80B 80 3.5 36 2.75 23 400 1500 1600±1.0 Special application in refineries petrochemicals etc.
14 Crown-80SD 80 1.6 37 2.75 19 700 1580 1600±1.0 Special application in refineries petrochemicals,Steel ladles etc.
15 Crown-SMT 56 1.5 36 2.35 21 450 1500 1500±0.5 For glass tank furnace, blast furnace, stove checker.
16 Crown-90S 90 1 - 3 16 900 1720 1700±0.1 Blast furnace hearth
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