The fire resistance temperature of diatomite insulation brick varies with specific products and production processes. The following information is relevant:

I. Refractory temperature range

The fire resistance of diatomite insulation brick is usually around 1250℃-1280℃.

Its actual use temperature is generally 900℃-1000℃, which is mainly used for medium temperature insulation layer.

II. High temperature performance characteristics

At the temperature of 500℃-800℃, the water in diatomite will completely evaporate, forming a large number of pores, and the heat insulation performance is remarkable.

When the temperature exceeds 1000℃, diatom shells in diatomite will be transformed into Shi Ying, resulting in volume shrinkage.

Diatomite thermal insulation brick will shrink due to sintering at high temperature, but its thermal insulation performance is still good.

III. Suggestions for use

Diatomite thermal insulation brick is mainly used for thermal insulation below 900℃, and it is not recommended to directly contact high-temperature flame or melt.

For higher temperature application scenarios, it is recommended to use materials with higher fire resistance, such as high-alumina insulating brick or mullite insulating brick.

To sum up, the fire resistance temperature of diatomite thermal insulation brick is mainly suitable for medium and low temperature thermal insulation scenes, which has good thermal insulation performance and economy, but it should be used with caution at high temperature.