Cast Basalt products


Czech company Eutit produces various products made of cast basalt. Melted basalt is processed from raw material, which is, according to Eutit, unique by its material composition. From melted basalt, which features excellent properties, particularly abrasion and chemical resistance, the company produces huge amount of innovative products of wide applicability. There are two kinds of products: melted basalt and a material called Eucor. Eucor features the same properties, but is resistant to higher temperatures, and is used exclusively in industrial operations as abrasion-resistant insert protecting the piping.

Basalt is natural material-stone, which belongs to such materials, whose lifetime has exceeded not only centuries, but also millenniums. But its hardness and difficult processability limited its wider expansion in constructional sector. As late as in 20th century the stone features much wider application in industry and civil engineering with development of petrurgy, i.e. processing of non-metallic ores by melting and casting.
Basalt is continuously melted in pit-type furnace heated by natural gas at approx. temperature 1280°C. At 1200°C it is cast (shaped) into metal or sand moulds, and after removing it is stored into continuous cooling tunnel furnaces till cooling after 16-21 hours, where it re-crystallizes and gains its end-use properties.

Main Physical Properties of Basalt:
Strength in compression min. 300-450 MPa
Use up to 400°C
High chemical resistance
Frost resistance
Thermal shock resistance up to 150°C
Bend strength min. 45 MPa
Volumetric weight 2900-3000 kg.m-3

Eutit produces various products from the melted basalt and this amount is ever increasing.
Main groups of products from melted basalt are pavements, tubes, sewerage gutters, tubes, bricks and more.

Eucor is a material produced by melting of suitable raw materials in electric arc furnace at temperature exceeding 2000°C followed by crystallizing of resulting melt. The melt is cast into sand moulds by common casting method. According to Eutit, Eucor features excellent properties, particularly hardness, resistance against high temperatures and chemical corrosion.
Due to its hardness they are applied under conditions of extreme heavy abrasive load, such as pneumatic transport of silica sand, sinter, mainly in the piping bends. Other examples cover lining of separators, spiral chutes, dragline conveyors, concrete mixers, blenders etc.

Resistance against high temperatures enables use for masonry of glass furnaces above the melt level, special shape pieces of burner walls and burners themselves, shape pieces of regenerative chambers, coke-oven platforms etc. An interesting opportunity is use in fly-ash separators with high entry temperature, where all stated properties, incl. chemical resistance, might be used.
Due to its high strength and abrasive resistance the Eucor may be successfully applied in certain metallurgic operations for transport of scale and slag.

Main Physical Properties of Eucor:
Strength in compression min. 300 MPa
Mohs hardness min. 9th grade
Use permanently up to 1000°C, short-time up to 1100°C
High chemical resistance
Bend strength min. 50 MPa
Volumetric weight 3500 kg.m-3

Innovative Materials edition 3 2018 B.V.
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