China Factory Supply Alumina Silicate Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng

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Every single member from our large efficiency revenue team values customers' wants and company communication for Insulating Firebrick J23, Sk34 Firebrick, Magnesite Refractory Bricks, If you are looking for a good quality, fast delivery, best after service and good price supplier in China for long-term business relationship, we will be your best choice.
China Factory Supply Alumina Silicate Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng Detail:

JM30 Insulation Brick Description

JM30 insulation firebrick is made from high purity refractory clays with gradually increasing aluminum oxide content and are carefully saturated with organic filling, which then burns out during the production process, resulting in a homogeneous, controlled porous structure. To achieve required tolerance, all six walls of each brick are mechanically processed.

Properties of JM30 Insulation Brick

  • Excellent compression strength,
  • Excellent heat stability,
  • Low thermal conductivity,
  • Low heat storage,
  • Thermal shock stability with high strength.

Rongsheng Refractory JM30 Insulation Brick Specifications

Index Model Bulk Densityg/cm3 Reheating linear Change Cold Crushing Strength MPa Modulus of Rapture MPa Thermal Conductivity
350℃ W/(m·K)
Chemical Composition %
Al2O3 SiO2 Fe2O3
JM30 A 1.0 -0.8  1400℃*12h 3.0 1.8 0.40 72 26 0.5
B 1.1 -0.7  1400℃*12h 3.5 1.9 0.43 72 26 0.5

Application of JM30 Insulation Brick

JM30 insulation fire brick is widely used as the first layer of a refractory lining or as back insulating layer behind all other refractory layers in furnaces, bakes, fire channels, refining chambers and heat furnaces, regenerators, gas production plants and conduits, intended furnaces, stressrelieving furnaces, reactor chambers and similar high-temperature industrial devices.

JM30 Insulation Brick Manufacturer from RS Refractory Factory

RS refractory factory is a professional JM30 insulation refractory brick supplier that established in the early 90s of twenty century. RS refractory factory has specialized in JM30 insulation fire brick for more than 20 years. if you have some demand of JM30 insulation firebricks, or have some questions on JM30 insulation refractory block about physical and chemical indicators, please contact us for free.


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China Factory Supply Alumina Silicate Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures

China Factory Supply Alumina Silicate Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures


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Quality First,and Customer Supreme is our guideline to provide the best service to our customers.Nowadays, we are trying our best to become one of the best exporters in our field to meet customers more need for China Factory Supply Alumina Silicate Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng , The product will supply to all over the world, such as: Venezuela, Russia, Italy, We have a strict and complete quality control system, which ensures that each product can meet quality requirements of customers. Besides, all of our products have been strictly inspected before shipment.
  • The customer service staff is very patient and has a positive and progressive attitude to our interest, so that we can have a comprehensive understanding of the product and finally we reached an agreement, thanks!
    5 Stars By Coral from India - 2018.11.06 10:04
    Product quality is good, quality assurance system is complete, every link can inquire and solve the problem timely!
    5 Stars By Fiona from Malawi - 2017.12.09 14:01
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