China 2021 High quality Magnesia Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng

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China 2021 High quality Magnesia 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 2021 High quality Magnesia Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures

China 2021 High quality Magnesia Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures


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Our business sticks for the basic principle of "Quality could be the life with the firm, and track record will be the soul of it" for China 2021 High quality Magnesia Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng , The product will supply to all over the world, such as: Mali, Manila, Congo, Due to good quality and reasonable prices, our items have been exported to more than 10 countries and regions. We are looking forward to cooperating with all customers from at home and abroad. Moreover, customer satisfaction is our eternal pursuit.
  • The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
    5 Stars By Roland Jacka from Germany - 2017.09.26 12:12
    It can be said that this is a best producer we encountered in China in this industry, we feel lucky to work with so excellent manufacturer.
    5 Stars By Ruby from Norwegian - 2018.12.14 15:26
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