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BNZ Materials Refractories Fire Brick

Soft Fire Bricks , Insulating Firebrick, IFB

by BNZ Materials Refractories : Made in USA !!


BNZ Insulating Fire BrickWe offer high quality, American Made BNZ soft insulating fire bricks. Picking the correct IFB bricks and other refractories for your application is crucial, so please email us or call to let us help you pick the correct refractories for your project or repair.

IFB (Insulating fire bricks) also known as Soft Bricks are high temperature, lightweight refractories which are used as insulation in kilns, forges and furnaces. Many furnaces and kilns will require a combination of Soft Brick and Dense firebrick. We also stock castable dense and insulating refractories (Litewate and Loucast). Casatable refractories are great problem solvers whether constructing or repairing. We stock insulating Kaowool blanket and insulating high temp board as well as mortar and kiln cement.

Gas and electric powered kilns and furnaces can use the soft insulating fire brick in the firebox.
Wood and oil burning kilns are constructed with hard-brick (dense firebrick.) They are then insulated with these IFB. Salt kilns and other applications which create corrosive atmosphere will also need to use dense firebrick (hard brick) in the firebox and use the IFB outside. Coal burning power plants often use specialized brick such as Silicon Carbide brick to resist the abrasive atmospheres there.

From a back yard forge or oven to full scale coal burning power pants Sheffield Pottery has the materials you need!

Sheffield bricks and refractories are used in salt kilns, train kilns, tunnel kilns, Anagama kilns, gas kilns, furnaces, and ovens coast to coast.


Please note:

Most kilns, ovens and furnaces utilize a combination of several types of fire-brick and refractories.
Feel free to email or give us a call if you need help selecting the correct bricks for your application.

Please note:
BRICKS SHIPPED UPS GROUND CARRY A $0.75 /BRICK PACKING FEE AND A $5.00 MINIMUM PACKING FEE.

  • Bricks carry a $0.75 per brick double box safe packing fee when going UPS.
  • There is a $5.00 minimum on this packing fee.
  • ie. 1-6 bricks carry a flat $5.00 packing fee. Add $0.75 per brick for 7+ bricks.
  • NOTE: This does not apply to large quantities of bricks which ship palletized via our truck or common carrier.

  • Call to special order any firebrick sizes not shown. Discounts are available when ordering 500 or more fire bricks.

INSULATING BRICKS/SOFT BRICKS 2 1/2”
CHOOSE SOFT BRICKS FOR INDOOR OR WELL COVERED AREAS
Note: Soft bricks can be cut down with an ordinary carpenter's hand saw to create custom shapes where you need them.
Discounts will be applied to orders of over 500 bricks according to schedule below:
ITEM CODE BRICK <500 >500 Call for 500 brick Discounts
STRAIGHTS 9” X 4 1/2” X 2 1/2”
NC20 G-20
NC23 G-23
NC26 G-26
NC28 G-28
WEDGES AND ARCHES** Call for 500 brick Discounts
NC20W/NC20A G-20
NC23W/NC23A G-23
NC26W/NC26A G-26
NC28W/NC28A G-28

SOFT BRICKS 3”

STRAIGHTS 9” X 4 1/2” X 3”
NC203 G-20-3
NC233 G-23-3 Call for 500 brick Discounts
NC263 G-26-3
NC283 G-28-3
WEDGES AND ARCHES**
NC203W/NC203A G-20-3
NC233W/NC233A G-23-3 Call for 500 brick Discounts
NC263W/NC263A G-26-3
NC283W/NC283A G-28-3
** Wedges and Arches must be specified by number.





Insulating Firebrick Technical Data Data Updated 05/10/06
Typical Data
STANDARD ASTM C 155 GRADES
Grade
NC-20
NC-23
NC-26
NC-28
Temperature Use Limit
(normal oxidizing atmosphere)
°F
2000
2300
2600
2800
Density, Avg.
ASTM C 134
lb/ft3
35
36
46
55
lb/BEq
2.0
2.1
2.7
3.2
Modulus of Rupture
ASTM C 133
lb/in2
90
110
175
210
Cold Crushing Strength
ASTM C 133
lb/in2
105
145
220
250
Permanent Linear Change
ASTM C 210
%

24 hrs at soaking temp: °F

1950

0.0

2250

0.0

2450

2550

-0.6

2750

-1.6
2950

Thermal Conductivity
ASTM C 182
Btu-in/ft2, °F

Temperature: °F

500

1.3
1.3
1.7
2.0

1000

1.4
1.4
1.8
2.2

1500

1.6
1.6
1.9
2.3

2000

n/a
1.8
2.1
2.5

Chemical Analysis
ASTM C 182

%

Alumina - Al2O3

32.1
32.1
35.4
46.8

Silica - SiO2


64.3
61.2
50.9

Ferris Oxide - Fe2O3

0.9
0.9
0.9
0.8

Titanium Oxide - TiO2

1.7
1.7
1.6
1.7

Calcium Oxide - CaO

0.1
0.1
0.1
0.1

Magnesium Oxide - MgO

0.2
0.2
0.1
0.1

Alkalies, as Na2O & K2O

0.7
0.7
0.7
0.4



Note: there are no drawings of the 3 inch series bricks so here are the dimensions:
3 inch brick dimensions




SOFT BRICKS

TEMP--->


G20/

2000

G23/

2300

G26/

2600

G28/

2800

Shape

Size in Inches






Straits
2.5

NC23 NC26 NC28
3

NC233 NC263 NC283
Wedge #1
2.5
NC20W1 NC23W1 NC26W1 NC28W1
3
NC203W1 NC233W1 NC263W1 NC283W1
Arch #1
2.5
NC20A1 NC23A1 NC26A1 NC28A1
3
NC203A1 NC233A1 NC263A1 NC283A1
Arch #2
2.5
NC20A2 NC23A2 NC26A2 NC28A2
3
NC203A2 NC233A2 NC263A2 NC283A2
Arch #3
2.5




3




Soaps
2.5




3




Side Skews
2.5




3




Feather Edge

2.5




3




Splits

2.5




3




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NC23: G-23 SOFTBRICK-STRAIGHTS Nc23: G-23 Softbrick-Straights

NC23: G-23 SOFTBRICK-STRAIGHTS

Our Price: $4.03
NC233: G-23 Soft Brick IFB Insulating Firebrick STRAIGHTS-3" G-23 Soft Brick IFB Insulating Firebrick Straights-3"

NC233: G-23 SOFTBRICK STRAIGHTS-3"

Our Price: $4.31
NC26: G-26 Soft Brick IFB Insulating Firebrick STRAIGHTS Nc26: G-26 Soft Brick IFB Insulating Firebrick Straights

NC26: G-26 SOFTBRICK STRAIGHTS

Our Price: $4.45
NC263: G-26 Soft Brick IFB Insulating Firebrick STRAIGHTS 3" G-26 Soft Brick IFB Insulating Firebrick Straights 3"

NC263: G-26 SOFTBRICK STRAIGHTS 3"

Our Price: $4.64
NC23A1: G-23 Soft Brick IFB Insulating Firebrick ARCHES #1 G-23 Soft Brick IFB Insulating Firebrick Arches #1

NC23A1: G-23 SOFTBRICK ARCHES #1

Our Price: $5.17
NC23A2: G-23 Soft Brick IFB Insulating Firebrick ARCH #2 G-23 Soft-brick Arch #2

NC23A2: G-23 SOFTBRICK ARCH #2

Our Price: $5.17
NC23W1: G-23 Soft Brick IFB Insulating Firebrick WEDGES #1 G-23 Soft Brick IFB Insulating Firebrick Wedges #1

NC23W1: G-23 SOFTBRICK WEDGES #1

Our Price: $5.17
NC26A1: G-26 Soft Brick IFB Insulating Firebrick ARCHES #1 G-26 Soft Brick IFB Insulating Firebrick Arches #1

NC26A1: G-26 SOFTBRICK ARCHES #1

Our Price: $5.45
NC26A2: G-26 Soft Brick IFB Insulating Firebrick ARCH #2 G-26 Soft Brick IFB Insulating Firebrick Arch #2

NC26A2: G-26 SOFTBRICK ARCH #2

Our Price: $5.45
NC26W1: G-26 Soft Brick IFB Insulating Firebrick WEDGES #1 G-26 Soft Brick IFB Insulating Firebrick Wedges #1

NC26W1: G-26 SOFTBRICK WEDGES #1

Our Price: $5.45
NC233A1: G-23 Soft Brick IFB Insulating Firebrick ARCH 3" #1 G-23 Soft Brick IFB Insulating Firebrick Arch 3" #1

NC233A1: G-23 SOFTBRICK ARCH 3" #1

Our Price: $5.57
NC233A2: G-23Soft Brick IFB Insulating Firebrick ARCHES 3" #2 G-23Soft Brick IFB Insulating Firebrick Arches 3" #2

NC233A2: G-23SOFTBRICK ARCHES 3" #2

Our Price: $5.57
NC233W1: G-23 Soft Brick IFB Insulating Firebrick WEDGE 3" #1 G-23 Soft Brick IFB Insulating Firebrick Wedge 3" #1

NC233W1: G-23 SOFTBRICK WEDGE 3" #1

Our Price: $5.57
NC28: G-28 Soft Brick IFB Insulating Firebrick STRAIGHTS G-28 Soft-brick Straights

NC28: G-28 SOFTBRICK STRAIGHTS

Our Price: $5.82
NC263A1: G-26 Soft Brick IFB Insulating Firebrick ARCH 3" #1 G-26 Soft Brick IFB Insulating Firebrick Arch 3" #1

NC263A1: G-26 SOFTBRICK ARCH 3" #1

Our Price: $6.42
NC263A2: G-26 Soft Brick IFB Insulating Firebrick ARCHES 3" #2 G-26 Soft Brick IFB Insulating Firebrick Arches 3" #2

NC263A2: G-26 SOFTBRICK ARCHES 3" #2

Our Price: $6.42
NC263W1: G-26 Soft Brick IFB Insulating Firebrick WEDGE 3" #1 G-26 Soft Brick IFB Insulating Firebrick Wedge 3" #1

NC263W1: G-26 SOFTBRICK WEDGE 3" #1

Our Price: $6.42
NC28A1: G-28 Soft Brick IFB Insulating Firebrick ARCH #1 G-28 Soft Brick IFB Insulating Firebrick Arch #1

NC28A1: G-28 SOFTBRICK ARCH #1

Our Price: $6.65
NC28A2: G-28 Soft Brick IFB Insulating Firebrick ARCH #2 G-28 Soft Brick IFB Insulating Firebrick Arch #2

NC28A2: G-28 SOFTBRICK ARCH #2

Our Price: $6.65
NC28W1: G-28 Soft Brick IFB Insulating Firebrick WEDGE #1 G-28 Soft Brick IFB Insulating Firebrick Wedge #1

NC28W1: G-28 SOFTBRICK WEDGE #1

Our Price: $6.65
NC283: G-28 Soft Brick IFB Insulating Firebrick STRAIGHTS 3" G-28 Soft Brick IFB Insulating Firebrick Straights 3"

NC283: G-28 SOFTBRICK STRAIGHTS 3"

Our Price: $6.90
NC283A1: G-28 Soft Brick IFB Insulating Firebrick ARCHES 3" #1 G-28 Soft Brick IFB Insulating Firebrick Arches 3" #1

NC283A1: G-28 SOFTBRICK ARCHES 3" #1

Our Price: $7.81
NC283A2: G-28 Soft Brick IFB Insulating Firebrick ARCHES 3" #2 Nc283A2: G-28 Soft Brick IFB Insulating Firebrick Arches 3" #2

NC283A2: G-28 SOFTBRICK ARCHES 3" #2

Our Price: $7.81
NC283W1: G-28 Soft Brick IFB Insulating Firebrick WEDGE 3" #1 G-28 Soft Brick IFB Insulating Firebrick Wedge 3" #1

NC283W1: G-28 SOFTBRICK WEDGE 3" #1

Our Price: $7.81
G-23 Soft Brick IFB Insulating Firebrick Straights-3" : 10 Pack : Delivered Price G-23 Soft Brick IFB Insulating Firebrick Straights-3" : 10 Pack : Delivered Price

G-23 Softbrick Straights-3" : 10 Pack : Delivered Price

Our Price: $86.99
   
 

Soft Bricks or Insulating Firebrick from Sheffield Pottery Ceramic Supply


Refractory shapes include precast cement and fused or sintered refractory products that are formed prior to installation in furnaces, boilers or other high temperature equipment. Refractories are hard, heat resistant materials and products such as alumina, silicon carbide, fire clay, bricks, precast shapes, cement or monolithics and ceramic kiln furniture. Ceramics and refractories have high melting points are suitable for applications requiring wear resistance, high temperature strength, electrical or thermal insulation or other specialized characteristics.

R
efractory
bricks, blocks, and tiles are stacked to form insulating furnaces, boilers or other thermal process vessel walls. The soft bricks are usually cemented together with refractory mortar.