Adhunik Group of Industries

Sarat Bose Road, Kolkata, West Bengal

Adhunik Group manufactures wide varieties of auto steel, including gear steel, spring flat steel, free cutting, non-hardened and tempered steel and micro alloyed steel. All these varieties are mainly used for manufacturing crankshaft, axle shaft, connecting rod, camshaft and front axle beam etc.

The grades being manufactured are:

20MnCr5, SAE4140, 16MnCr5, 8620, 8622

Bearing Steel is the fundamental part in mechanical driving process. As the so called alloy steel used for the manufacture of each kind of bearing ring and rolling element, high carbon and chromium bearing steel is widely applied in the manufacturing of pin roller and sleeve on driving shaft of combustion engine, vehicle and mineral machinery etc. The major usage of Bearing Steel is in Ball Bearing, Cone Bearing etc.

The grades being manufactured are:

SAE-52100 , ASTM A295 , EN31 etc.

This kind of steel is used to make high tensile fasteners and safety equipment, electronic goods, automotive components and heavy machinery from a variety of steel grades, depending on the application and strength requirements with the advancement of technology in cold forged, extruded and thread rolled application with an excellent dimensional accuracy and surface finish.

Fasteners are important members of an assemblage of equipments or structures and thus influence their integrity and performance. They are widely used in High Level Fasteners & Safety Equipments, Electronic gadgets, Automobile Industries, Heavy Machineries.

The grades being manufactured are:

AISI 10B36, AISI 15B25, DIN 19MnB4M, AISI 15B41, AISI 10B21M, SCM415H, SCM 420H, SCM435, AISI 4135, En24, AISI 4140, AISI 1541etc.

The company mainly manufactures this kind of steel in large and middle specification, composite sectional and various special mechanical shapes, which is applicable for power towers, bridges, cars and ships, machinery, plant house, holders, frames, civil engineering structural parts etc.

The grades being manufactured are:

TT, HT 8500 AML250PG, AML350Pg etc. (for both normal and high strength applications)

Stainless steel is a value added engineering product with high corrosion resistant properties, primarily due to the presence of a minimum of 10.5% chromium. This chromium combines with oxygen to form a chrome-oxide surface layer that prevents further oxidation, which results in staining or rusting of a surface. Higher levels of chromium and additions of other alloy elements such as nickel and molybdenum enhance the quality of surface layer and improve the corrosion resistance of the stainless material. Stainless steel today has varied end-uses in utensils, household wares, automobiles, architecture, building, construction, surgical equipment, industrial applications, marine applications and railway wagons.

Grades being offered include

Austenitic grades such as 304, 304L, 316, 316L, 310, 321, Cr-Mn Austenitic grades such as 201, 202, AML-7, AML-6, AML-5

Martensitic Grades such as 410, 420, 431, 409, 409L, 409M, 430 are being developed for critical high-temperatures and high-strength applications for railways and automotive industry.

Round Bars : (Dia in mm) 16, 18, 20, 20.64, 22, 23, 24, 25, 26, 28, 30, 32, 34, 36, 38, 40, 42, 45, 46.5, 48, 50, 53, 56, 58, 60, 63, 65, 66, 66, 68, 70, 75, 78, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 140, 145, 150, 160, 170, 180NB: Any other size as per customers requirement can be offered.

RCS: (Size in mm) 50, 55, 63, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 140, 160, 180.Hexagons: (A/F) (mm) (As Rolled and Cold Drawn to Specific Requirements)

18, 20.64, 22, 23.5, 25.5, 28, 30, 32, 34, 38, 42.

Coils: (Dia in mm) : 5.5, 6, 7, 8, 9, 10, 11, 12, 13.3, 14, 15, 16.3 17, 18.3, 19, 20.

(Size in mm) 100 x 100, 127 x 127, 140 x 100, 140 x 140, 150 x 100, 160 x 140, 180 x 165, 180 x 170, 250 x 155, 130 Dia, 140 Dia, 150 Dia, 160Dia, 170Dia, 180Dia.

NB: Any other size as per customers requirement can be offered

Cathode Collector Bars & Anode Stubs of Low Electrical Resistivity for aluminium industry.

Coal and coal products are mainly used in the production of sponge iron, pig iron and in captive power plant. Coal is India's most abundant, safe and secure fossil fuel for use in Steel Plants, Cement plants and Sponge Iron Plants. However, the only problem is the limited availability of good quality coal. The ingress of extraneous dirt further deteriorates the quality. As a result coal of recommended grade is not available. A dedicated coal washery can only help the supply of washed clean coal of recommended quality to the user plants so as to avoid the disadvantages associated with inferior quality of available coal. Therefore a coal washery having beneficiated capacity of 125 TPH has been set up. The annual current beneficiation capacity is 700, 000TPA. The installed capacity has been estimated at 18 hours of working per day and 312 days of working per annum.

The two coke oven batteries of 30 ovens each have facility of by-product (tar) recovery. The coke oven gas coming out of the oven at about 700 C - 800 C is cooled to 80 C - 85 C by spraying Ammonical liquor. The coking coal (Australian coals) is blended and charged through charging holes and is carbonised in the absence of air. The coke oven gas generated during carbonisation is partly used for battery heating and the rest is sent to rolling mills. The In-house coke oven plant protects the Company from the volatility in pricing purchased coke from China and helps save the conversion cost.

As a fully integrated Ferro Alloys plant we have the leverage to ensure the quality starting from raw material to finished product. Our state of art manufacturing facility along with fully automated material handling process delivers the best quality material.

Adhunik TMT rebars are produced through Primary Steel making route using virgin iron ore from Captive mines by the world's most advanced technology, - The Tempcore Process - in collaboration with Centre de RechaercheMetallurgiques (CRM) Belgium. Adhunik TMT Bars are subsequently processed through the in house DRI Plant consuming Iron ore mined from own Mines, which is further channelled through Induction Furnace, Ladle Refining Furnace (LRF) to refine the steel to the fullest extent and a Continuous Casting Billet Machine (CCBM). The resultant Billets are of superior quality, containing low sulphur and phosphorus levels and ensures the desired and consistent properties in the rebar. Adhunik TMT Bars are IS: 1786:2008 Certified forFe-415, Fe-415D, FE-500, Fe-500D, Fe-550& Fe-600 grades.

For production of hot metal, the unit has installed a blast furnace. In the blast furnace, the burden of iron ore and coke is reduced into hot metal. Coke is used both as reductant and fuel. To maintain heat in the furnace a stove has been set up. A blast furnace of 262 Cu M has also been set up. The production per Cu M is 2.40 tons per day. Considering 340 working days per annum, the installed capacity of the plant is 214, 000 TPA. The hot metal produced shall be transferred to Electric Arc Furnace for primary refining or cast in pig casting machine.