China Good Wholesale Vendors Firebrick J23 - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng

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China Good Wholesale Vendors Firebrick J23 - 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 Good Wholesale Vendors Firebrick J23 - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures

China Good Wholesale Vendors Firebrick J23 - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures


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With our loaded working experience and thoughtful products and services, we've got been acknowledged as a reputable supplier for most international buyers for China Good Wholesale Vendors Firebrick J23 - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng , The product will supply to all over the world, such as: Holland, Mexico, Paraguay, We have been making our products for more than 20 years . Mainly do wholesale , so we have the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we provide good products , but also because of our good after-sale service . We are here waiting for you for your inquiry.
  • This is the first business after our company establish, products and services are very satisfying, we have a good start, we hope to cooperate continuous in the future!
    5 Stars By olivier musset from United Arab emirates - 2017.11.11 11:41
    The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Honorio from Australia - 2017.06.29 18:55
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