The new definitions of refractory materials in different country

Every country have different definition of refractory materials.

According to international standards, refractory materials are defined as non-metallic materials and products whose chemical and physical properties allow their use in high-temperature environments (excluding those containing a certain proportion of metals).

The American standard defines refractory materials as non-metallic materials that, based on their chemical and physical properties, can be used to make structures and devices exposed to temperatures above 1000°F (538 °C).

The Japanese standard defines refractory materials as: shaped refractory materials that can be used at temperatures above 1500℃, unshaped refractory materials with a maximum service temperature above 800℃, refractory mortar and refractory insulating bricks.

China's standards for refractory materials follow the ISO standard, stipulating that refractory materials refer to non-metallic materials with physical and chemical properties suitable for use at high temperatures, but it cannot be ruled out that some products may contain a certain amount of metallic materials.

From the definitions of refractory materials in the above three countries, it can be seen that the descriptions of the connotation and extension of refractory materials vary from country to country. Some specify the operating temperature, while others do not. Moreover, the specified operating temperatures for each vary greatly, but they also have a common point, that is, the refractory material must be able to withstand the damage caused by temperature.

Therefore, refractory materials are defined based on the most fundamental requirements of their application environment. However, with the advancement of science and technology, the requirements for modern refractory materials have far exceeded the scope of basic requirements. What are refractory materials? To understand the requirements for refractory materials.

The application environment of refractory materials is rather complex, and different application environments put forward different requirements for them. Comprehensively analyze the requirements of the usage environment for refractory materials. And for each specific usage requirement, there are corresponding refractory materials with corresponding performance.