China High reputation Castable Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng

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We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for Graphite Electrode Machining, 70 Alumina Fire Brick, Fire Clay Brick, We guaranteed high quality, if clients were not satisfied with the products' quality, you can return inside 7days with their original states.
China High reputation Castable 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 reputation Castable Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures

China High reputation Castable Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng detail pictures


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We normally follow the basic principle "Quality Initial, Prestige Supreme". We've been fully committed to offering our consumers with competitively priced good quality merchandise, prompt delivery and professional support for China High reputation Castable Fire Brick - Mullite refractory insulating refractory bricks jm30 – Rongsheng factory and manufacturers | Rongsheng , The product will supply to all over the world, such as: Cairo, Sevilla, Rio de Janeiro, We attained ISO9001 which provides solid foundation for our further development. Persisting in "High quality, Prompt Delivery, Competitive Price", we have established long-term cooperation with clients from both overseas and domestically and get new and old clients' high comments. It is our great honor to meet your demands. We are sincerely expecting your attention.
  • This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately, we successfully completed the procurement tasks.
    5 Stars By Ruth from Provence - 2018.12.14 15:26
    Managers are visionary, they have the idea of "mutual benefits, continuous improvement and innovation", we have a pleasant conversation and Cooperation.
    5 Stars By Modesty from Gabon - 2017.04.08 14:55
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