Cold-Rolled Grain-Oriented Electrical Steel Manufacturing Facility

Project Overview

A consortium led by an Indian steel major and a Japanese electrical-steel technology licensor engaged IMARC Engineering to establish India's first integrated cold-rolled grain-oriented (CRGO) and cold-rolled non-grain-oriented (CRNGO) electrical steel manufacturing facility in the Kalinganagar Industrial Complex, Odisha.

Driven by the Government of India's Specialty Steel Production Linked Incentive scheme, an INR 6,322 Crore corpus targeting localised production of high-value steel categories, and India's near-total import dependence on CRGO electrical steel, historically sourced from Japan, South Korea, China, and Russia at a cumulative annual import value exceeding USD 1.4 Billion, the client identified a strategic opportunity to localise transformer-grade electrical steel production for the rapidly expanding Indian power transformer, traction motor, and renewable energy generator markets.

The project involved establishing a 240,000 MT per annum facility producing CRGO grades from M2 to M5 (silicon content 3.0 to 3.2 percent) and CRNGO grades for motor and generator applications, with site infrastructure designed for Phase 2 expansion adding a second 140,000 MT CRGO line.

Client's Challenges

The client faced several specific challenges in establishing greenfield electrical steel manufacturing in India:

• CRGO metallurgical precision: Achieving and sustaining the narrow chemistry window for grain-oriented electrical steel (Si 3.0 to 3.2%, ultra-low carbon, controlled sulphur and nitrogen), with the associated multi-pass cold rolling, decarburisation annealing, and high-temperature box annealing for Goss texture development — a process previously unestablished in Indian steel manufacturing at this scale.
• Magnetic property targets: Delivering iron-loss performance of 0.85 to 1.10 W/kg at 1.7 Tesla and 50 Hz across the product range, competitive with established Japanese and Korean benchmarks demanded by Indian power utility transformer manufacturers.
• PLI scheme compliance: Meeting the Specialty Steel PLI scheme's Domestic Value Addition milestones — initially 25%, rising progressively across the five-year scheme window — while sourcing critical process equipment and core technology know-how from international licensors.
• Energy intensity: Managing electrical and thermal energy intensity at 6,200 kWh per tonne of finished CRGO — substantially higher than commodity steel — under Indian grid conditions and rising industrial power tariffs in Odisha.
• Technology localisation: Adapting the Japanese licensor's CRGO process to Indian slab feedstock specifications, ambient operating conditions, and grid power quality, without compromising the magnetic property benchmarks the customer base requires.
• Workforce in remote Odisha: Recruiting 1,840 skilled metallurgists, rolling-mill operators, annealing-furnace technicians, and quality engineers in a regional location with limited prior CRGO-specific experience, alongside an expatriate technology-transfer rotation.

What We Did

• Pre-Investment and Strategic Advisory

Our feasibility study evaluated four candidate locations, Kalinganagar (Odisha), Angul (Odisha), Vijayanagar (Karnataka), and Hazira (Gujarat), against 16 weighted criteria including slab feedstock proximity, port access for technology-licensor equipment imports, grid power reliability, state-level capital subsidy and electricity-duty concessions, water entitlements, and engineering talent pipelines from the National Institute of Technology Rourkela and the Indian Institute of Technology Bhubaneswar.

Kalinganagar was selected on the strength of its established steel cluster (Tata Steel Kalinganagar, Jindal Stainless), Odisha Industrial Infrastructure Development Corporation (IDCO) land allotment availability, dual 220 kV grid feed via Odisha Power Transmission Corporation, and proximity to Paradip port (130 km) for equipment imports.

CapEx planning of INR 6,400 Crore covered hot-rolled coil reception and pickling, the two-stand cold rolling mill complex with intermediate annealing, the decarburisation annealing line, high-temperature box annealing furnaces, MgO and phosphate insulation coating lines, slitting and packaging trains, magnetic property testing laboratories, and a dedicated 220 kV substation.

Our team led the Specialty Steel PLI bid preparation that secured an allocation under sub-category 5 (CRGO and CRNGO electrical steel), alongside Odisha state incentive structuring covering capital subsidy, electricity duty exemption, and stamp duty rebate, and Ministry of Steel and Ministry of Commerce engagement on import-duty harmonisation. Financial modelling demonstrated post-tax IRR of 18.4% at full ramp with a 7.2-year payback inclusive of PLI accruals.

• Engineering and Design Services

IMARC designed a 142,000 sq.m built-up facility across hot-rolled coil reception, pickling, the two-stand cold rolling mill with intermediate annealing, the inline decarburisation annealing line (DCAL) operating at 820°C in a controlled hydrogen-nitrogen atmosphere, the high-temperature box annealing (HTA) furnace bank, the critical step driving Goss-texture grain orientation through extended thermal cycles up to 1,200°C, the MgO base-coat and phosphate insulation top-coat (C-5) lines, the slitting and tension levelling finishing trains, and the magnetic property testing and finished-coil packaging area. Process design embedded the Japanese licensor's CRGO recipe library with grade-specific parameter envelopes managed through a unified MES.

Utility design covered 32 MW of contracted demand supplied via a dedicated 220 kV substation with N+1 redundancy across critical loads, a 28 MW captive rooftop and ground-mounted solar array delivering 18% of facility energy demand under Odisha's solar irradiation profile, 12 MLD process water with 78% closed-loop recycling, captive hydrogen and nitrogen generation (340 Nm³/hr H2 at 99.999% purity, 2,800 Nm³/hr N2) for the annealing atmospheres, and process steam for pickling and MgO coating. Equipment foundations were engineered for the rolling mill's heavy dynamic loads, with vibration isolation across the cold mill stands and precision-aligned bearing housings critical to maintaining the strip-thickness tolerances required for downstream magnetic property performance.

• Procurement and Supply Chain Support

We executed a multi-geography procurement programme across 96 critical vendors. The two-stand cold rolling mill was sourced from a Japanese steel-equipment OEM with documented CRGO references; the decarburisation annealing line and continuous catenary furnace from a German specialist; the high-temperature box annealing furnace bank from Austrian and Italian thermal-process specialists; MgO and phosphate coating lines from a Japanese coating-equipment OEM; and slitting, tension levelling, and finishing equipment from European and Indian suppliers. Civil, mechanical erection, and MEP packages were awarded to qualified Indian contractors with proven primary-steel-plant track records.

Hot-rolled coil procurement was structured under long-term offtake agreements with three Indian primary steelmakers covering 280,000 MT per annum of hot-rolled coil at target electrical-steel chemistry, including a coordinated mill-trial campaign to validate slab composition stability against the Japanese licensor's specifications. MgO base-coat material was sourced from a German specialty supplier under a five-year offtake; phosphate insulation coating chemistry from a US specialty chemicals partner.

PLI Domestic Value Addition was optimised through deliberate local-sourcing of civil structurals, MEP, automation hardware, and ancillary equipment from BIS-compliant Indian fabricators, lifting Year-1 DVA achievement to 32% (against a 25% PLI milestone) and Year-2 to 38%. Vendor qualification protocols included on-site supplier audits, FAT and SAT validation packages, and incoming material specifications validated through pilot-scale runs at the Japanese licensor's reference facility.

• Project Execution and Site Management

Our turnkey project management delivered 36 months from groundbreaking to first qualified product, coordinating civil construction, mechanical erection, electrical and instrumentation installation, technology transfer from the Japanese licensor, and integrated commissioning of the seven major process zones. We managed construction of the main mill building (62,000 sq.m), the annealing furnace bank (28,000 sq.m housing the critical HTA equipment), the coating and finishing block (18,000 sq.m), the magnetic testing laboratory, the warehouse and packaging hall, and the central utility block including substation, hydrogen plant, and water treatment infrastructure.

Installation supervision ensured electrical-steel-grade specifications: precision-aligned rolling mill stands with strip-thickness tolerances within ±2 microns, sealed annealing furnace atmospheres with hydrogen purity validated to 99.999% at every point of use, vibration isolation across cold mill and finishing equipment, and SCADA integration logging 2.8 million process parameter readings per shift across rolling, annealing, and coating circuits. The HTA furnace bank was the critical path — the nine-month installation and commissioning sequence determined the project's overall schedule, and IMARC stationed a dedicated commissioning sub-team co-led with the Austrian furnace supplier and the Japanese licensor's resident engineering team.

Production ramp-up tracked magnetic property evolution from 1.18 W/kg (first qualified coils in month 37) to 0.92 W/kg by month 44 across the M3 reference grade, with weekly steering reviews driving root-cause closure on 184 process anomalies and 36 design-stage process refinements. Multi-vendor coordination across Japanese, German, Austrian, Italian, US, and Indian contractors required a 28-strong owner's engineering team supplemented by 18 Japanese resident engineers for parent-facility copy-exact validation.

• Compliance, Quality and Sustainability

IMARC led certification readiness across Bureau of Indian Standards (BIS) certification under IS 648 for grain-oriented and IS 648-NGO for non-grain-oriented electrical steel, IEC 60404 international electrical steel standards, ISO 9001/14001/45001/50001 management systems, and the PLI Specialty Steel Domestic Value Addition verification protocols administered by the Ministry of Steel. We implemented an integrated quality system with online magnetic property testing on every coil at the Epstein frame test station, dimensional and surface quality verification at multiple inspection points, full electrical steel grade certification at finished goods release, and lot-level traceability from slab feedstock through to customer despatch.

Environmental compliance covered Odisha State Pollution Control Board consent to operate, Central Ground Water Authority clearance, Hazardous Waste Authorisation for spent pickling acid and MgO process residues (handled through dedicated regeneration and recycling streams), and Extended Producer Responsibility commitments under Indian environmental regulations.

The facility achieved IGBC Gold certification through a 28 MW captive solar array delivering 18% of facility energy demand, hydrogen recovery from annealing offgas (offsetting 18% of process hydrogen demand), 22% lower process energy intensity versus the Japanese reference benchmark through high-efficiency furnace insulation and motor drives, and 78% process water reclamation via closed-loop cooling and pickling rinse recovery. Aspirational ESG commitments include Scope 1+2 carbon neutrality by 2035 supported by green hydrogen integration and additional onshore solar capacity.

Final Results

Operational Performance

The facility achieved mechanical completion in 36 months with first qualified CRGO coils delivered in month 37. Full 240,000 MT per annum nameplate capacity was reached by month 18 of operations at 88% utilisation, with sustained magnetic property of 0.92 W/kg at 1.7 Tesla on the M3 grade, comfortably within the Japanese licensor specification, and customer-side acceptance through 32 of 34 sequential qualification batches across three Indian power transformer manufacturers and one traction-motor OEM. Yield from slab to finished coil reached 87% by month 18, three points above the technology-licensor benchmark for an early-stage CRGO plant.

Financial Outcomes

Final CapEx of INR 6,180 Crore delivered 3.4% savings against the INR 6,400 Crore budget through optimised civil packaging, deliberate local-fabrication leverage for tanks and structurals, and disciplined multi-vendor procurement under the PLI DVA framework. Specialty Steel PLI Tranche 1 and 2 disbursements were secured against year-1 and year-2 production milestones, with cumulative PLI eligibility of approximately INR 480 Crore across the scheme tenure. Year-2 revenue of INR 4,300 Crore was generated at an EBITDA margin of 26%, substantially above the commodity-steel benchmark, driven by CRGO premium pricing into Indian transformer manufacturer contracts.

Market Access

BIS IS 648 certification was secured in month 7 of operations and IEC 60404 verification by month 11, with PPAP-equivalent qualification completed across three major Indian power transformer manufacturers (covering both distribution and power-grid transformer applications) and one Indian traction-motor OEM. Long-term supply agreements were signed covering 1.6 Million MT cumulatively through 2032, with the facility positioned to substitute approximately 32% of India's annual CRGO import volume at full ramp. Active discussions are underway with two additional Indian transformer manufacturers and one regional South Asian utility supply tender, with selective export to neighbouring South Asian power-sector buyers identified as a Phase 2 commercial vector.

Sustainability Impact

Our integrated design, combining a 28 MW captive solar array, hydrogen recovery from annealing furnace offgas offsetting 18% of process hydrogen demand, heat recovery from continuous annealing line offgas delivering 42 GJ/hr of useful process steam, high-efficiency motor drives across cold mill and finishing equipment, and variable-frequency drives on all major rotating loads, achieves 22% lower process energy intensity versus the Japanese reference benchmark, saving INR 84 Crore annually in energy operating cost.

Closed-loop water systems reclaim 78% of process intake, including pickling rinse recovery and cooling-tower blowdown reuse. The facility holds IGBC Gold certification and is on a defined trajectory toward Scope 1+2 carbon neutrality by 2035 through green hydrogen substitution and additional captive renewables.

Strategic Impact

The project established India's first integrated CRGO electrical steel manufacturing facility and demonstrated the operational viability of the Specialty Steel PLI scheme's import-substitution thesis at scale. Year-2 revenue of INR 4,300 Crore sustained magnetic-property performance within Japanese licensor benchmarks, and the 32% import-substitution share led the client to approve Phase 2 expansion comprising a second 140,000 MT CRGO line and a parallel investment in a thin-strip CRGO line for distribution transformer applications.

IMARC Engineering's end-to-end EPCM advisory, uniquely combining metallurgy and rolling-mill engineering, Japanese technology licensor coordination, PLI scheme navigation, and BIS and IEC compliance readiness, enabled the client to anchor a strategically important Indian industrial asset in a sector where execution complexity and metallurgical risk had previously confined Indian steel manufacturers to commodity grades and CRGO imports.