whatsapp

+86-15537132953

Working Hours

Mon - Fri 10 to 5pm

Send Your Mail At

info@castablerefractory.com

Blog

Request a Quote
  1. Home
  2. JM Mullite Insulation Brick
  3. JM28 Insulation Brick

Refractory Brick

Insulation Brick

Unshaped Refractory

CONTACR US

JM28 Insulation Brick

  • JM28 Insulation Brick

1.Have stable volume.

2.Have excellent thermal stability.

3.Have low thermal conuctivity.

JM28 Insulation Brick Introduce
 
JM28 Insulation Bricks are made from high purity materials by unique technics, so they have a lot of advantages such as stable volume, excellent thermal stability, high intensity, and low thermal conductivity. They are an ideal kind of energy-conserving products, which can be widely used as linings or as thermal preservations layes in various industrial furnaces and kilns in metallurgical industry, ceramic industry, chemical industry and machinery industry.
 
Application of JM28 Insulation Brick
 
.Glass industries iron & steel industries;
.Ceramics industries non-ferrous metals industries;
.Electrolytic Aluminum industries power generation industries;
.Heat surface fireproof lining other fire-proof back lining.
 
JM28 Insulation Brick Specification
 
JM Series Insulating Firebrick Performance Parameter
Items FJM23L FJM-23 FJM-25 FJM-26 FJM-28 FJM-30 FJM-32
Classification Temperature (℃) 1260 1260 1350 1430 1540 1600 1650
Bulk Density
(kg/m3)		 500 550 800 780 880 1000 1200
Cold Crushing Strength
(MPa)		 1.2 1.3 1.8 2.5 2.8 3.0 3.8
Modulus of Rupture
(MPa)		 0.9 1.0 1.2 1.4 1.7 1.8 2.0
Reheating Linear Change
(%)
@℃×12h		 -0.3
(1230)		 -0.2
(1230)		 -0.5
(1350)		 -0.6
(1400)		 -0.8
(1500)		 -0.8
(1600)		 -0.7
(1650)
Thermal
Conductivity
(W/m.K)		 400℃ 0.17 0.19 0.21 0.21 0.30 0.40 0.43
600℃ 0.19 0.23 0.27 0.27 0.32 0.42 0.50
800℃ 0.22 0.24 0.30 0.30 0.35 0.44 0.51
1000℃ 0.24 0.25 0.32 0.32 0.38 0.45 0.53
1200℃ -- -- -- 0.35 0.39 0.47 0.55
Chemaical
Composition
(%)		 Al2O3 42 45 45 55 65 72 75
SiO2 54 54 51 41.5 32.5 25.7 23
Fe2O3 0.8 0.8 0.9 0.8 0.6 0.5 0.4
Ti02 1.2 1.2 1.3 1.0 0.7 0.7 0.6
Cao+Mg0 0.7 0.7 0.7 0.7 0.5 0.5 0.3
Na2O+k2O 1.3 0.3 1.1 1.0 0.9 0.8 0.7
 
Remarks:		 All data above are average test relusts, which can be adjusted according to application request.
For more information, contact our sales engineer.
JM Series Insulating Firebrick Performance Parameter
Items FJM23L FJM-23 FJM-25 FJM-26 FJM-28 FJM-30 FJM-32
Classification Temperature (℃) 1260 1260 1350 1430 1540 1600 1650
Bulk Density
(kg/m3)		 500 550 800 780 880 1000 1200
Cold Crushing Strength
(MPa)		 1.2 1.3 1.8 2.5 2.8 3.0 3.8
Modulus of Rupture
(MPa)		 0.9 1.0 1.2 1.4 1.7 1.8 2.0
Reheating Linear Change
(%)
@℃×12h		 -0.3
(1230)		 -0.2
(1230)		 -0.5
(1350)		 -0.6
(1400)		 -0.8
(1500)		 -0.8
(1600)		 -0.7
(1650)
Thermal
Conductivity
(W/m.K)		 400℃ 0.17 0.19 0.21 0.21 0.30 0.40 0.43
600℃ 0.19 0.23 0.27 0.27 0.32 0.42 0.50
800℃ 0.22 0.24 0.30 0.30 0.35 0.44 0.51
1000℃ 0.24 0.25 0.32 0.32 0.38 0.45 0.53
1200℃ -- -- -- 0.35 0.39 0.47 0.55
Chemaical
Composition
(%)		 Al2O3 42 45 45 55 65 72 75
SiO2 54 54 51 41.5 32.5 25.7 23
Fe2O3 0.8 0.8 0.9 0.8 0.6 0.5 0.4
Ti02 1.2 1.2 1.3 1.0 0.7 0.7 0.6
Cao+Mg0 0.7 0.7 0.7 0.7 0.5 0.5 0.3
Na2O+k2O 1.3 0.3 1.1 1.0 0.9 0.8 0.7
 
Remarks:		 All data above are average test relusts, which can be adjusted according to application request.
For more information, contact our sales engineer.
 

Related Products

Corundum Mullite Light Brick

JM30 Insulation Brick

JM28 Insulation Brick