Welcome L&T Heavy Civil IC to NucFinder

L&T Special Steels & Heavy Forgings is now available on NucFinder as a validated supplier.

L&T Special Steels and Heavy Forgings Private Limited (LTSSHF) is a strategic joint venture between Larsen & Toubro (L&T) and Nuclear Power Corporation of India Limited (NPCIL). Located within the A. M. Naik Heavy Engineering Complex in Hazira (Surat, Gujarat), LTSSHF operates India’s largest integrated steel-making, heavy forging, heat treatment, and heavy machining facility. Spanning over 400,000 square meters, the plant was established to supply high-reliability forgings for critical, high-technology sectors.

Focus on Nuclear Energy & Strategic Sectors

LTSSHF holds a distinct position as the only facility in Southeast Asia capable of manufacturing nuclear-grade heavy forgings. Its creation significantly strengthened domestic self-reliance while providing global access to nuclear-grade components.

Key Nuclear Capabilities & Milestones:

• Reactor Component Forgings: Manufacturing heavy, high-purity forgings for 700 MWe Pressurised Heavy Water Reactors (PHWR) and Light Water Reactors (LWR), including reactor pressure vessels, steam generator tube sheets, pressurizer shells, and main coolant pump housings.
• Nuclear-Grade Alloys: Expertise in custom melting and forging low-alloy steels (such as SA508 Gr 3 Cl 1, 20MnMoNi55), nuclear-grade stainless steel (e.g., SS 304L), and high-nickel alloys.
• International Fusion Energy (ITER): Manufactured and supplied heavy nuclear-grade stainless steel plates (thicknesses up to 900 mm) for the global ITER project in Cadarache, France.
• Spent Fuel Casks: Production of heavy forged components for spent nuclear fuel transportation and storage casks.
• Nuclear Quality Assurance: Operations adhere strictly to international nuclear compliance frameworks, including ASME Section III (N-stamp qualifications), IAEA safety codes, and ISO standards.

Core Infrastructure & Technical Capabilities

The integrated facility at Hazira enables complete, end-to-end manufacturing from raw materials to fully machined heavy components:

• Steel Melting Shop: Equipped with a 120 MT Electric Arc Furnace (EAF), Ladle Refining Furnace (LRF), Vacuum Degassing (VD), and Vacuum Oxygen Decarburization (VOD) units for low-impurity steel production.
• Ingot Casting: Facilities for both bottom-pouring and large-scale vacuum ingot casting.
• Heavy Forge Shop: Powered by a 10,000-Ton Hydraulic Open-Die Forging Press integrated with a 150 MT rail-bound manipulator, capable of shaping massive ingots into complex geometries.
• Heat Treatment Shop: State-of-the-art furnaces handling single components up to 400 MT, supported by a 1-million-litre liquid quenching system.
• Precision Machine Shop: Heavy-duty vertical turning lathes (handling loads up to 250 MT), horizontal lathes, floor-type horizontal boring machines, and deep-hole drilling equipment (up to 15 m depth).

Other Key Industry Sectors Served

In addition to nuclear power generation, LTSSHF serves several other heavy engineering markets:

• Defence & Marine: Heavy forgings for naval vessels, submarines, and strategic defence platforms.
• Hydrocarbon & Refining: Heavy-wall forged shells and heads for high-pressure hydrocracker reactors, process columns, and coke drums.
• Power Generation (Thermal & Hydro): High-integrity forged turbine rotors, generator shafts, and hydro-runner hubs.
• Heavy Equipment: Specialized forged components for steel manufacturing mills, heavy presses, and offshore engineering installations.

Explore the company profile, capabilities, and catalog coverage on NucFinder.

Polimex Mostostal has been awarded a contract to construct two assembly halls for the Polskie Elektrownie Jądrowe (PEJ) nuclear power plant project. These halls will support the construction of three Westinghouse AP1000 units at the Lubiatowo-Kopalino site in Poland. The contract encompasses engineering services, design documentation for permits, material supply, structural assembly, testing, acceptance, and final handover of both facilities.

The AP1000 reactor design utilizes modular construction, allowing for the prefabrication of large structural modules off-site and their subsequent assembly at the construction location. The reactor building and systems incorporate numerous prefabricated steel-concrete structural and mechanical modules. The assembly halls will facilitate the construction of the largest modules, including the 1,000-tonne CA01 module, containment rings, roofs, and panels for the protective building.

Each hall will measure 129 meters in length, 55 meters in width, and 44 meters in height, comparable to a 12-story office building. They will be situated adjacent to the units under construction and equipped with three overhead cranes: two with a 125-tonne lifting capacity and one with a 60-tonne capacity, designed for precise component maneuvering.

This contract underscores the strengthening of the domestic supply chain, with Polish companies gaining orders, experience, and expertise in the demanding nuclear technology sector. The total value of contracts awarded to Polish companies for the Lubiatowo-Kopalino nuclear power plant project has surpassed PLN2.2 billion (USD570 million). PEJ has signed more than 10 large contracts with Polish subcontractors this year as part of its efforts to build the supply chain and support Polish industry.

The Polish government selected Westinghouse AP1000 reactor technology for the Lubiatowo-Kopalino site in November 2022. In September 2023, Westinghouse, Bechtel, and PEJ signed an 18-month engineering services contract to finalize a site-specific design for a plant featuring three AP1000 reactors. An amendment to the Engineering Development Agreement (EDA) was signed on December 29, 2025, to continue design work and geological surveys, maintaining the project schedule while negotiating the Engineering, Procurement, and Construction (EPC) contract. The main commercial and legal terms of the EPC contract have been agreed upon, with negotiations expected to conclude by the end of this year.

PEJ submitted an application for a construction permit to Poland's National Atomic Energy Agency (PAA) on March 31, 2026. The company anticipates pouring first concrete for the plant's first unit in the fourth quarter of 2028. To meet this timeline, a construction permit from the PAA and a building permit from the Pomeranian Voivode are required. PEJ plans to submit a building permit application in 2027. Each reactor's construction is projected to take approximately seven years, followed by about one year of testing and commissioning. The first reactor is targeted for commercial operation in 2036, the second in 2037, and the third in 2038.