Cast basalt

Cast basalt is a kind of silicate crystalline material after producing and processing, it made of natural rock (basalt, diabase and other basite) or some industrial waste as the main raw materials, by melting, casting, crystallization, annealing and other processes.

Cast basalt have an excellent performance of high abrasive and high corrosion resistance. Cast basalt products mainly include cast basalt tile, cast basalt pipe, cast basalt lined steel pipe, clamp cast basalt pipe, cast basalt wear-resistant slip joints, cast basalt wear-resistant valves, cast basalt powder and various wear-resistant corrosion-resistant cement which use cast basalt powder as raw material. Cast basalt products have been widely used in industrial sectors which have serious wear and corrosion of parts and equipment, such as electric power, mining, metallurgy, coal, chemicals, construction and so on. Cast basalt is an indispensable non-metallic industrial new material in the development of modern industry.

Friction Resistance - As more material is passed over Cast Basalt it gets polished up thereby reducing friction further. Cast Basalt improves in service after getting polished. Wetting also improves its performance in practical applications.

Impact Resistance - Direct Impact Resistance at 90 degree is low like all other ceramics, but it can be increased with proper installation by reducing the angle of impact. Cast Basalt is the best wherever sliding abrasion exists. Moreover, external impact strength of composite basalt pipe (enclosed in M.S. Shell) is always more than that of bare Ni-hard Pipe.

Basalt pipe

Chemical Resistance Cast Basalt is almost absolutely acid/alkali resistant (except Hydrofluoric Acid) and hence corrosion resistant.
Weight and Sizes - Basalt Tiles are available in regular shape square of 200 x 200 x 30 mm thick, weighing approx. 90 kg/sq m; whereas bends and pipes are lined using Basalt

  • 气缸of various standard sizes from 50NB upto 500NB.
  • Temperature - Cast Basalt withstands temperature up to 450oC
  • Life - Life of basalt-lined pipe is estimated to be 7 to 10 times that of Cast Iron, and 3 to 4 times that of Ni-hard Steel.

Centrifugal casting molding

Cast basalt pipe adopt magma centrifugal casting molding, then go through the tunnel kiln to annealing, and over a period of open storage to eliminating naturally the residual internal stress of cast basalt pipe

“It’s stone, but not as we know it!”

Basalt casting was used as a replacement to iron and steel which was in short supply after WWII – the crushed natural basalt is heated back to molten lava and then poured into moulds to make components such as pipes and floor tiles, which are incredibly hard wearing and abrasion resistant.

Cast basalt can be formed into a diverse range of shapes and surface patterns – including bespoke designs (min 325m2). During the cooling process the surface of the material achieves a glass-like patina, with an iridescence and texture that is unique to each piece.

Cast Basalt is formed from Volcanic rock that is crushed, cast, and annealed in a specialised process. This results in two exceptional qualities. Firstly, being many times higher in resistance to erosion than iron or steel and, secondly, it has a high degree of chemical resistance.

We supply Cast Basalt wear resistant linings; tiles, pipes and shapes that resist wear and provide protection to mining and industry equipment.

它可以be cast in a variety of shapes using sand moulds or spun into 500-mm-long cylindrical liners. Certain diameters are now available at 1000 mm. Spun liners are available in diameters between 100 mm and 660 mm, with engineered tile sets available for sizes above 660mm. When first installed, cast Basalt has a coefficient of friction similar to that of steel, and a density of around 3000 kg/m3. Over time the conveyed media effectively polishes the surface of the Basalt lining, improving the coefficient of friction as the linings are used.

Cast Basalt can be used for the lining of pipework, chutes, bunkers, cyclones, and hoppers. It has become the global standard in areas such as ash slurry pipework, often used at fossil-fuel power stations. It is an all-round cost-effective and adaptable lining material that extends the life of equipment in pipe or tile form were affected by abrasion.

Main Specification Of Cast Basalt
Cast Basalt Pipe DN
Standard Steel Pipe OD
Cast Basalt Thickness


80 159 25 4000
100 168 17.5

125 195
150 219
175 245 6000
200 273
225 300
250 325
275 345
300 377
350 426
400 478 20
450 529
500 600 25
550 650