Established in 1981, Raasi Refractories Limited (RRL) is a leading manufacturer and developer of high-quality refractory bricks and allied products. RRL manufactures high-quality refractory bricks and allied products for a wide range of applications in iron, steel, cement, non-ferrous, induction furnaces, petrochemical, fertiliser, power, aluminium and other related industry sectors. Raasi is the only publicly traded company in the sector in India.
RRL's wide range of refractory bricks and allied products include fire clay bricks, high alumina bricks, high alumina mortars, dense alumina bricks, magnesia carbon bricks, mortars and spinel bricks, direct bonded basic bricks, silica bricks, basic monolithics, spraying masses, pre-cast shapes, zircon mortars, patch ramming masses and dense castables.
Raasi Refractories is an experienced player in the manufacture of refractory bricks and allied products. It has a large production facility over an area of about 100 acres of land at Narketpally near Hyderabad.
The company has a huge production facility spread over 100 acres and equipped with state-of-the-art manufacturing facilities. The company has a production capacity of 70,000t of fired bricks, unfired bricks and 15,000t of monolithics.
Product range of the company includes:
- Fire Clay Bricks- RRL offers a wide range of high-quality fire clay bricks used in reheating furnace bricks, fire clay bricks for steel casting pits, boilers, coke oven bricks, blast furnaces, induction furnaces, kilns, ladles, foundries, boilers, combustion chambers, etc. The fire clay bricks have Al 2O3% raging from 34 to 47, Fe2O3% ranging from 1.5 to 2.0, and apparent porosity percent ranging from 16 to 25.
- High Alumina Bricks- Its high alumina bricks are used in steel refining furnaces, glass tanks, ceramic kilns, enamel kilns, rotary cement kilns and other various kilns and furnaces. The high alumina bricks have Al2O3% ranging from 50 to 99, Fe2O3% ranging from 0.2 to 3.0, and apparent porosity percent ranging from 15 to 23.
- Special Basic Refractory- RRL supplies a wide range of refractory products that include alumina chrome refractory, alumina carbon refractory, alumina magnesia carbon refractory, dense magnesite chrome refractory, direct bonded magnesite chrome refractory, chrome magnesite bricks and magnesite alumina bricks.These special basic refractory products are used in OHF side walls, reheating furnaces, high temperature positions in rolling reheating furnaces, EAF roofs, rotary furnace linings, and harsh abrasive positions by billets in forges, hearth furnaces, antinomy furnaces and AOD working linina.
- Magnesia Carbon Bricks- The magnesia carbon bricks have a wide range of applications that include LD converter wear lining, VAD / LF ladle slag areas, ladle bottom impact UHP / EBT-EAF slang line and hotspot areas. The variety of magnesia carbon bricks offered includes normal density magnesia carbon bricks, metal line magnesia carbon bricks for steel ladles and slag line magnesia carbon bricks for steel ladles.
- Magnesite, Magnesite Chrome and Chrome Bricks- RRL supplies a wide variety of magnesite bricks, dense magnesite bricks, low iron magnesite bricks, chrome bricks and magnesite chromes bricks used in back up lining bricks for EAF, ladles, converters chemically bonded with steel clad, glass regenerators, OH roofs and EAF free boards.Silica Bricks. The company supplies silica normal bricks for general purpose, coke ovens and silica dense bricks for coke ovens.
- Basic Mortars, Ramming Felting And Patching Masses The basic mortars, ramming felting and patching masses are used for laying magnesite bricks, mag bricks, chrome mag bricks, chromite bricks and as neutral layers between silica and basic bricks.
RRL supplies mag-chrome patching mass for worn out portion of induction furnaces, magnesite ramming mass for hot cold repair of furnaces and magnesite felting material for repair of furnaces.
RRL offers fireclay and high alumina mortars that are used for general mortar purpose, sillimanite mortar and low iron content mortar applications. The company also offers a wide range of high alumina, zircon mortars, patch ramming masses and plastic materials used in a wide range of applications.
Special Products:
- High Alumina, Zircon and Alumina Carbon Nozzles
- Stopper Heads, Porus Plugs (Zirmul, silicon Carbide)
- Silica Bricks 99% with less than 0.5% al203 & Fe203
- Mullite Alumina Bushes with 3% Porasity
- High Alumina Porus Plugs
- High Alumina (94%) Insulation Bricks
- Thermo Insulation Dense Bricks (Tempered Bricks)
- Bobble Alumina Insulation Bricks
- Dense Alumina Bricks to use in (Aneeling Furnace Heart)
- Low Cement Castables
- Ultra Low Cement Castables
Clientele
- Birla Technical Services
- Concast india ltd.
- Holtec Engineers
- Mukand Ltd
- M N Dastur & Company
- Tata Korf Engg Services Ltd
- Thermax
- Bhilai Steel Plant
- Durgapur Steel Plant
- Visakhapatnam Steel Plant
- Jindal Vijayanagar Steel Ltd
- Southern Iron & Steel Co. Ltd
- Midhani Limited
- Tamilnadu Steel Ltd
- Hospet Steels Ltd
- Ispat Profiles India Ltd, and many more
