Fire brick in Different Sizes and Types

1. Fire Brick In Different Types
 
1) Standard Refractory Bricks. 
 
Straight fire bricks with a size of 230 mm x 114 mm x 65 mm are usually referred to as standard bricks.
 
(2) The proportion of the size of the general-purpose refractory brick (the ratio of the minimum to the largest size, the same below) is within the range of 1:4, without the concave corner, the hole or the groove, the clay brick with a single weight of 2~8 kg, 2~6kg of siliceous brick, 2~lOkg of high-aluminum brick, 4~lOkg of magnesia or magnesia-aluminum brick, all called ordinary brick.
 
(2) Shaped Refractory Bricks.
 
1) Clay, high alumina shaped bricks. The ratio of the external dimensions is within 1:6 and has no more than 2 concave corners (including arc-shaped concave corners) or one 50. ~75. The acute angle, or with no more than 4 grooves, the weight of 2 to 15kg of clay bricks and 2 to 18kg of high-aluminum bricks, are called shaped bricks.
 
2) Silicon shaped bricks. Where the ratio of the dimensions is within the range of 1:5, there is no more than one concave angle, or one 50. ~75. An acute angle, or a silicon brick with a weight of 2 to 12 kg, with no more than 2 grooves, is called a silicon shaped brick.
 
3) Magnesium or magnesium-aluminum shaped bricks. Anyone who does not include this series of bricks is classified as a shaped brick.
 
(3) Special Refractory Bricks.
 
1) Clay, High Alumina Special Bricks.
 
Where the ratio of the external dimensions is within the range of 1:8, there are no more than 4 concave corners (including arc-shaped concave corners) or one 50. ~30. An acute angle, or not more than 8 grooves, or no more than 1 hole, the weight of 1. 5 ~ 30kg of clay bricks and 1.5 ~ 35kg of high-aluminum bricks, are called special bricks .
 
2) Silice Special Bricks.
Where the outline size ratio is within 1:6, there are no more than 4 concave corners (including arc-shaped concave corners), or one 50. ~30. An acute angle or a silicon brick having a weight of 1.5 to 25 kg, which is a special type of brick, with 4 grooves or with no more than 1 hole.
 
（4）Magnesium special bricks. 
 
Where the size ratio is within 1:8, there are no more than 4 concave corners (including arc-shaped concave corners), or one 30. ~50. An acute angle; or a brick with no more than 3 holes; or a magnesia brick with no more than 4 grooves and a single weight of 3 to 35 kg, is called a special brick.

2. Refractory Brick Size and Size Representation
 
Straight refractory brick size specifications (in millimeters, mm) are indicated by A*B*C
 
Wedge refractory brick size specifications (in mm, mm) expressed as A*(C/D)*B
 
The dimensions of the arched bricks (in millimeters, mm) are (L/C)*(A/B)*(E/D)