China High Quality for 70 Alumina Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng

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With a positive and progressive attitude to customer's curiosity, our organization repeatedly improves our products top quality to meet the wants of consumers and further focuses on safety, reliability, environmental necessities, and innovation of Ceramic Fire Brick, Kiln Refractory Bricks, Isowool Ceramic Fiber Blanket, With a wide range, good quality, reasonable prices and good service, we will be your best business partner. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!
China High Quality for 70 Alumina 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 High Quality for 70 Alumina Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures

China High Quality for 70 Alumina Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures


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Having a sound small business credit score, outstanding after-sales services and modern manufacturing facilities, we've got earned an fantastic reputation among our buyers across the globe for China High Quality for 70 Alumina Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng , The product will supply to all over the world, such as: European, Slovenia, Malaysia, As an experienced manufacturer we also accept customized order and we could make it the same as your picture or sample specification. The main goal of our company is to live a satisfactory memory to all the customers, and establish a long term business relationship with buyers and users all over the world.
  • The customer service staff's attitude is very sincere and the reply is timely and very detailed, this is very helpful for our deal,thank you.
    5 Stars By Tyler Larson from Istanbul - 2018.05.15 10:52
    The customer service staff's attitude is very sincere and the reply is timely and very detailed, this is very helpful for our deal,thank you.
    5 Stars By Honorio from Turkmenistan - 2018.12.22 12:52
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