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Hard Bricks : Dense Firebrick Refractories


Zetner Fire Brick KilnDense Fire Bricks are also known simply as hard brick. These bricks are very heavy at about 8 pounds each. They are highly refractory with high service operating temperatures. The color varies some but are all yellow tan to light orange in color.
Hard Fire Bricks are resistant to abrasion and chemical atmosphere so they are found in the fire boxes of wood and salt kilns, and power plants.
There are many stock shapes for building complicated forms and arches.
Even fairly simple kilns and furnaces require a combination of different shapes to build.

Let the experts at Sheffield help you get the correct fire bricks for your project or repair. We provide fire bricks in a variety of shapes and temperature ratings to suit even the most demanding applications.


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.

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


Shown above right is a new gas kiln made with fire bricks from Sheffield Pottery by the late John Zentner of New Hampshire Potters Guild.


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.
HARD BRICKS

CHOOSE HARD BRICKS FOR OUTDOOR APPLICATIONS : Wood Kilns. Soda Kilns usually require 70% alumina hard brick below.
Give us a call to speak to one of our experts to help pick the correct bricks for your project.


HIGH HEAT DUTY -
Economical high-duty firebricks will go to cone 31-32. Suitable for backup linings, and other areas that encounter moderate operating temperatures. Not suggested for abrasive conditions. (equivalent to Empire) 2 1/2” except where * (3”)


SUPER DUTY -
Exhibits high strengths and low shrinkage, good resistance to thermal shocks. Can be used as the inside lining of kiln. Will go to cone 33-34. (equivalent to Clipper) 2 1/2” except where * (3”)

70% ALUMINA -
A chemical and ceramic bonded 70% alumina brick designed for the following applications: Electric furnace roofs, ladle bottoms, side walls and slag lines, rotary kilns, cement kilns, torpedo ladles, tundishes, and hot zones of lime kilns. Cone 38.


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

HARD BRICKS

TEMP--->

HHD SD 70%Alum
Shape

Size in Inches

Straits
2.5 LVHHD LVSD LVA70
3 LVHHD3
Wedge #1
2.5 LVHHDW1 LVSDW1 LVA70W1
3
Arch #1
2.5 LVHHDA1 LVSDA1 LVA70A1
3
Arch #2
2.5 LVHHDA2 LVSDA2
3
Arch #3
2.5 LVSDA3
3
Soaps
2.5 LVHHDSO LVSDSO
3
Side Skews 2.5 LVHHDSS48
3
Feather Edge

2.5 LVSDFE
3
Splits

2.5 LVHHDSP
3

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Medium Duty Hardbrick FireBrick Fire Brick Straights 2.5" Medium Duty Hardbrick FireBrick Fire Brick Straights 2.5"

Medium Duty Fire Brick  Fire Brick Straights 2.5"

Our Price: $2.89
LVHHD: HIGH HEAT Hardbrick FireBrick-STRAIGHTS High Heat Hardbrick FireBrick Straights 2.5"

LVHHD: HIGH HEAT Fire Brick -STRAIGHTS 2.5"

Our Price: $3.16
LVHHDA2: HIGH HEAT Hardbrick Firebrick -#2 ARCHES High Heat Hardbrick Firebrick -#2 Arches 2.5"

LVHHDA2: HIGH HEAT Fire Brick S-#2 ARCHES 2.5"

Our Price: $3.51
LVHHDW1:HIGH HEAT Hardbrick Firebrick -WEDGES #1 High Heat Hardbrick FireBrick-#1 Wedge 2.5"

LVHHDW1:HIGH HEAT Fire Brick S-WEDGES #1 2.5"

Our Price: $3.51
High Heat Hardbrick FireBrick #2 Wedge 2.5" High Heat Hardbrick FireBrick #2 Wedge 2.5"

HIGH HEAT Fire Brick  #2 WEDGE 2.5"

Our Price: $3.51
Super Duty Hardbrick FireBrick Splits 9 X 4.5 X 1.25" Super Duty Hardbrick FireBrick Splits 9 X 4.5 X 1.25"

SUPER DUTY Fire Brick  SPLITS 9 x 4.5 x 1.25"

Our Price: $3.93
LVSD: SUPER DUTY Hardbrick FireBrick-STRAIGHTS Super Duty Hardbrick FireBrick-Straights 2.5"

LVSD: SUPER DUTY Fire Brick -STRAIGHTS 2.5"

Our Price: $4.21
High Heat Hardbrick Firebrick -Straight 3" High Heat Hardbrick Firebrick -Straight 3"

LVHHD3: HIGH HEAT Fire Brick S-STRAIGHT 3"

Our Price: $4.24
LVSDA1: SUPER DUTY Hardbrick FireBrick ARCHES #1 Super Duty Hardbrick FireBrick- #1 Arches 2.5"

LVSDA1: SUPER DUTY Fire Brick  ARCHES #1 2.5"

Our Price: $4.39
LVSDA1: SUPER DUTY Hardbrick FireBrick ARCHES #2 Super Duty Hardbrick FireBrick- #2 Arches 2.5"

LVSDA1: SUPER DUTY Fire Brick  ARCHES #2 2.5"

Our Price: $4.39
LVSDSO: SUPER DUTY SOAPS Super Duty Hard Brick Soaps 9 X 2.25 X 2.5"

LVSDSO: SUPER DUTY SOAPS 9 x 2.25 x 2.5"

Our Price: $4.57
Super Duty Hardbrick FireBrick Straights 3" Super Duty Hardbrick FireBrick Straights 3"

SUPER DUTY Fire Brick  STRAIGHTS 3"

Our Price: $4.60
LVSDA1: SUPER DUTY Hardbrick FireBrick ARCHES #3 Super Duty Hardbrick FireBrick- #3 Arches 2.5"

LVSDA1: SUPER DUTY Fire Brick  ARCHES #3 2.5"

Our Price: $4.71
SUPER DUTY Hardbrick FireBrick-WEDGES #1 Super Duty Hardbrick FireBrick-#1 Wedge 2.5"

LVSDW1: SUPER DUTY Fire Brick -WEDGES #1  2.5"

Our Price: $4.83
Super Duty Hardbrick FireBrick #2 Wedge 2.5" Super Duty Hardbrick FireBrick #2 Wedge 2.5"

SUPER DUTY Fire Brick  #2 WEDGE 2.5"

Our Price: $4.83
Super Duty Hardbrick FireBrick Feather Edge 3" Fire Brick Super Duty Hardbrick FireBrick Feather Edge 3" Fire Brick

Super Duty Fire Brick  Feather Edge 3" Fire Brick

Our Price: $6.39
Super Duty Hardbrick FireBrick-Straights 2.5" : 4 Pack : Delivered Price Super Duty Hardbrick FireBrick-Straights 2.5" : 4 Pack : Delivered Price

Super Duty Fire Brick -Straights 2.5" : 4 Pack : Delivered Price

Our Price: $54.99
   
 
HARD BRICKS Firebrick from Sheffield Pottery Ceramic Supply