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Shiv Refractories is one of the leading Traders, Suppliers & Distributors of a wide range of Fire Bricks, Insulation Material, Calderys Refractory, Acid Resistance Material, Minerals & Others. We are specialized in all types of Refractory and Insulation applications.

Insulating Bricks


We are supplier, trader, wholesaler and service provider of Insulation Bricks, which is appreciated for trouble free installation, eco friendliness, moisture resistance and impressive resistance against high temperature as well as high pressure.

We are focusing on meeting the specific requirements of our clients, by trading & supplying an extensive range of Insulating Bricks, these Insulation bricks highly used in glass plant furnaces and boilers, Insulation bricks are obtained from the most trusted and reliable vendors of the market.

Our quality inspectors check the bricks on strength and durability parameters to provide a flawless range to the clients.

We offer the Insulating Bricks to the clients at reasonable price and deliver within the committed time frame.



Properties Grade A [JMD-A] Grade B [JMD-B] Grade C [JMD-C]
Bulk Density (gm/cc, max. 1.00 0.90 0.75
Apparent Porosity (%, min.) 60 60 65
Cold Crushing Strength (kg/cm2, min.) 20 15 7
Pyrometric Cone [ASTM] No. (min.) 32 27 -
Suitable for temperatures upto (oC) 1500 1250 850
Thermal Conductivity at Hot Face temperature of 600oC (kcal/m/hr/oC, max.) 0.35 0.23 0.20
PLCR (oC/3 hours, max.) 1.5 at 1250oC 1.5 at 1200oC 1.5 at 1000oC


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