As one of the leading HR coils manufacturers in India, Adukia Industries produces high-tensile strength, high-carbon steel coils with a martensite grain structure. Our coils are created by passing them through a lengthy continuous heating furnace and then quenching them in oil, ensuring consistent strength and performance in every batch. Our hot rolled coils form the backbone of Adukia Industries' integrated production chain. The same HR coils are further processed into ERW pipes for plumbing, construction, and oil & gas applications, and re-rolled into TMT bars, wire rods, HB wires, and billets used across the construction and infrastructure sectors. This backward integration begins with our own sponge iron and pellets production, supported by in-house ferro alloys manufacturing — giving us complete control over raw material quality from ore to finished coil.
Specifications
Chemical Composition:
| C | Mg | Si | Cu | P | S |
| <0.3 % | 1.03% | 0.28 % | 0.20 % | 0.04% | 0.05% |
Related Products
TMT Bars & Coils
Adukia Industries is one of the leading TMT bar manufacturers in India and a trusted supplier of advanced iron and steel products, committed to providing innovative solutions for the construction industry. Our UltraMax 550D TMT bars are designed to offer outstanding durability, strength, and flexibility to meet the demands of modern construction projects, making them a preferred choice of TMT bars for construction across residential, commercial, and infrastructure projects. Engineered using cutting-edge technology, these UltraMax TMT bars & Coils serve as the backbone for buildings, industrial sheds, transmission towers, dams, and roads, among others.
Utilising advanced German Thermax TMT bar technology, we produce TMT bars of Fe 550D grade, with a size range of 8mm to 32mm.
Why Adukia Industries Is the Best TMT Bar Company in India
Backed by decades of experience in iron and steel manufacturing, Adukia Industries has earned its place among the best TMT bar company in India for builders, contractors, and steel dealers. Our fully integrated production chain — from sponge iron and billets to the final rolling of TMT bars — allows us to maintain a level of consistency that few other TMT bars manufacturers in India can match. Every batch is tested against BIS standards and produced under ISI-certified quality checks, which is why architects and engineers regard us as the best TMT bar in India for projects ranging from residential homes to large infrastructure. As one of the most dependable TMT bar suppliers in the country, we also work closely with dealers who want a reliable long-term TMT bar supplier for their region. To see how our UltraMax range compares with other leading names, read our detailed guide on top TMT bar brands in India for construction.
TMT Bar Manufacturer and Supplier in Kolkata & West Bengal
Headquartered in Kolkata, Adukia Industries is recognised as one of the established TMT bar manufacturers in Kolkata and a leading TMT bar company in West Bengal, with an integrated production base that serves builders and dealers across eastern India. Whether you're looking for a dependable TMT bar company in Kolkata for a large housing project or a trusted TMT bar supplier in Kolkata for regular dealership supply, our production capacity and quality systems are built to serve both. As one of the well-known TMT bar manufacturers in West Bengal, we also supply TMT bar in Kolkata and neighbouring districts directly from our plants and depots. Find our full list of offices and plant locations on our locations page, or read how we became one of Kolkata's top TMT bar manufacturers.
Sponge Iron
As one of the established sponge iron manufacturers in West Bengal, Adukia Industries operates a fully integrated sponge iron plant in West Bengal, producing sponge iron pellets and sponge iron fines that meet the raw material requirements of steel and TMT bar producers across the country. Every batch produced at our sponge iron factory undergoes strict quality checks before entering our integrated production chain. Along with our own pellets and in-house ferro alloys, sponge iron forms the raw material base for our billets, which are further rolled into TMT bars, wire rods, and HB wires, while the same backward-integrated process also supports our ERW pipes production.
Ferro Alloys
Ferro alloy refers to various alloys of iron with a high proportion of one or more other elements such as manganese, aluminum, or silicon. They are used in the production of steels and alloys. The alloys impart distinctive qualities to steel and cast iron or serve important functions during production. Ferro alloys produced by us are used as raw materials for the manufacture of stainless steel products. We also sell specialised ferro alloys – low and medium carbon – for special steel applications. We sell ferroalloys of various grades, a finished product, to steel companies primarily in the states of Odisha, Jharkhand, Karnataka, Uttar Pradesh, Haryana and Rajasthan.
Pellets
Pellets are a type of agglomerated iron ore fines which has better tumbler index when compared with that of parent iron ore and can be used as a substitute of lump ore for the production of sponge iron and in blast furnaces for the production of hot metal. The iron pellets are produced with cold crushing strength (CCS) of 210+ and porosity of 24+” which helps to maintain grade in DRI fem – 80+ and our product mean particle size (MPS) is ~9.5-10 which assists in reducing oxygen in kiln and maintain consistency in grade. Iron Pellets are used as raw material for sponge iron and blast furnaces.
AIC can produce various grades/quality of pellets because of having a rotary kiln where the pellets are heated and fired uniformly. The process can use multiple ores simultaneously by applying the art of raw material blending. Pellet process helps save energy i.e. power because of excellent heat recuperation and lower drop in pressure of gases.
Wire Rods
Adukia Industries is a leading wire rod manufacturer and a trusted name among advanced iron and steel producers, committed to providing innovative solutions for the wire drawing industry. We produce top-quality stainless wire rods for wire drawing mills across the globe. Our expertise in heat treatment and hot rolling billets on continuous rolling mills enables us to manufacture wire rods with the desired chemistry and mechanical properties. These semi-finished products feature a round cross-section and are wound up into wire rod coils for easy handling and transportation.
Why Adukia Industries Is Among the Top Wire Rod Manufacturers in India
As one of the established steel wire rod manufacturers in India, Adukia Industries operates a fully integrated production chain — from in-house sponge iron and billets to continuous rolling — giving us complete control over chemistry and consistency in every batch. This integration is what makes us one of the most reliable wire rod manufacturers in India for wire drawing units, fastener makers, and welding electrode producers. Every batch leaving our wire rod factory is tested against strict quality parameters, which is why dealers and industrial buyers continue to choose us as their preferred wire rod supplier for long-term requirements. Backed by decades of experience and a fully equipped production facility, we have also grown into a dependable wire rod exporter, supplying wire drawing mills beyond India. As India's No. 1 rod company, Adukia Industries remains committed to consistent chemistry, dimensional accuracy, and timely delivery on every order.
HB Wires
H.B wire is a raw material for manufacturing of GI wire, Binding wire, weld mesh, welding electrodes, etc and for other uses such as cement pole, bridges and handicrafts. H.B Wire is highly used in for manufacturing nails and Cycle Spokes.
Billets
Adukia Industries is a leading manufacturer of advanced iron and steel products and one of the most trusted steel billet suppliers in India, committed to providing innovative solutions for the construction industry. As a prominent billet manufacturer and dependable billet producer, we play a crucial role in steel production, which forms the backbone of construction projects across the nation. Recognizing the importance of billet quality in determining the overall quality of steel, we ensure premium billet production through stringent testing at every stage of the process, backed by industry certifications that reflect our commitment to consistent quality. We offer customised billets for both domestic and international markets, catering to the demands of customers in Chhattisgarh, Uttar Pradesh, Punjab, Rajasthan, Maharashtra, Nepal, and Bangladesh, making us a reliable billet exporter to neighbouring countries as well.
Billets are sections of metal used for rolling into bars, rods, and sections. They are typically cast into rectangular or cross-sectional shapes, making them compatible with secondary processing. Billets are produced through continuous casting, extrusion, or indirect heat treatment, followed by hot rolling of an ingot or bloom. They serve as raw materials for manufacturing TMT bars and structural products used in construction. Given how much this stage shapes the strength and safety of every downstream product, you can read more about the importance of billet manufacturing in determining final steel quality.
Why Choose Adukia Industries for Billets
As one of the established steel billets manufacturers in India, Adukia Industries operates a fully backward-integrated production chain — from in-house sponge iron and pellets to ferro alloys — ensuring consistent chemistry and dimensional accuracy in every batch. This integrated control is what leading TMT and structural steel producers across the country rely on when choosing their preferred billet supplier. Backed by stringent testing and IS-compliant grades, we continue to be recognised among the leading billet manufacturers in India for both domestic and export requirements.
ERW Pipes
Adukia Industries is a trusted ERW pipe manufacturer in India, offering high-quality ERW steel pipes that are longitudinally welded and manufactured from strip/coil. These pipes are perfect for transporting gas and liquid objects like oil and gas. We produce pipes as per the following ERW pipe specification: OD: 25mm-75mm, Wall thickness: 1.4mm-3.5mm, Length: As per customer's requirement. As an integrated steel manufacturer, Adukia Industries produces ERW pipes using strip and coil sourced from our own HR Coils production line, ensuring consistent quality and dimensional accuracy in every batch. Backed by decades of experience across TMT Bars & Coils, Billets, Wire Rods, HB Wires, Sponge Iron, Ferro Alloys, and Pellets, we maintain end-to-end control over raw material quality — from ore to finished pipe. This integrated process is what makes us a dependable ERW pipe manufacturer for construction, plumbing, and oil & gas industries across India.Download Brochure
