Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight, singly or together, more than 50% of the elements Mg, Ca or Cr, expressed as MgO, CaO or Cr2o3

HS code 690210 covers a crucial category of refractory ceramic materials used extensively in the construction and manufacturing industries. These specialized products, containing high concentrations of magnesium, calcium, or chromium oxides, are essential for withstanding the extreme temperatures and harsh environments encountered in various industrial processes. Their importance spans sectors like steel production, glass manufacturing, and power generation, making them a vital component of the broader economy.

The production of HS 690210 refractory goods typically involves a multi-step process. Raw materials, such as magnesite, dolomite, or chromite, are mined and processed to extract the desired mineral components. These are then crushed, milled, and blended in precise proportions to achieve the required chemical composition. The mixture is then formed into the desired shapes, such as bricks, blocks, or tiles, using techniques like pressing or extrusion. Finally, the shaped products undergo high-temperature firing to enhance their strength, durability, and heat-resistant properties.

The primary inputs for the production of HS 690210 refractory goods include the raw mineral resources (magnesite, dolomite, chromite), as well as specialized machinery for crushing, milling, and shaping the materials. Energy sources, such as natural gas or electricity, are also crucial for the high-temperature firing process. Additionally, the industry relies on skilled labor, technical expertise, and quality control measures to ensure the consistent production of these critical industrial materials.

The HS 690210 refractory goods find widespread application in various industries, serving as essential components in furnaces, kilns, and other high-temperature equipment. The outputs from this industry are often consumed by manufacturers in the 6902 Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods and 6903 Other refractory ceramic goods sectors, as well as by the 7201 Pig iron and spiegeleisen in pigs, blocks or other primary forms, 7202 Ferro-alloys, and 7302 Railway or tramway track construction material of iron or steel industries, among others.