SGA Technologies is now available on NucFinder as a validated supplier.
SGA Technologies is a UK manufacturer of high-quality, high-reliability hermetic components and packages, with over 55 years of experience. The company designs, manufactures and tests products including glass-to-metal seals, hermetic packages, feedthroughs and custom assemblies for demanding applications. SGA's components are used in sectors including nuclear, defence, aerospace, utilities, medical, telecommunications and scientific equipment, where performance and reliability are critical. With in-house design, engineering, assembly, manufacturing, testing and plating capabilities, SGA maintains full control over quality throughout the production process. The company also develops bespoke solutions and processes to meet demanding customer specifications and complex engineering requirements.
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Welcome L&T Heavy Civil IC to NucFinder
New supplier
L&T Heavy Civil IC
India·EPC / Main Contractor · Service Provider / Contractor
L&T Heavy Civil IC is now available on NucFinder as a validated supplier.
L&T Heavy Civil Infrastructure Independent Company (HCI IC) is a premier strategic business unit of Larsen & Toubro, India's $30+ billion engineering, procurement, and construction (EPC) conglomerate. Specialising in ultra-large-scale, high-complexity engineering projects, HCI IC operates across key infrastructure domains including urban mass transit (metros and high-speed rail), hydroelectric power, marine and port structures, defence infrastructure, and nuclear power infrastructure. The division is recognised globally for its high degree of mechanisation, advanced construction techniques (such as Tunnel Boring Machines and heavy precast systems), and strict adherence to safety and execution timelines.
Nuclear Energy: Core Competencies and Execution Experience
L&T Heavy Civil Infrastructure IC holds a market-leading position in nuclear power construction. Having contributed to virtually every operational nuclear reactor site in India, the business unit possesses deep expertise across the complete lifecycle of heavy civil works, mechanical installation, and site integration for nuclear power plants (NPPs).
Core Technical Competencies:
Complex Containment Civil Works: Specialised construction of double-containment reactor buildings, inner prestressed concrete containment structures, heavily reinforced foundation rafts, and auxiliary buildings designed to withstand extreme thermal, pressure, and seismic loads.
Electromechanical & Reactor Erection: Turnkey installation of critical mechanical packages, including reactor pressure vessels, steam generators, polar and trestle cranes, turbine-generator sets, condensers, and high-pressure nuclear piping systems.
Balance of Plant (BoP) & Marine Structures: Engineering and execution of essential cooling systems, including massive natural draft cooling towers, heavy pump houses, and specialised seawater intake tunnels/structures.
Nuclear Safety & Quality Compliance: Expertise in nuclear-grade materials, including high-density radiation-shielding concrete and precision formwork. Operations strictly comply with international nuclear safety standards, including ASME Section III requirements and US NRC-audited quality frameworks.
Key Projects & Milestone Achievements:
Commercial Power Stations (PHWR & LWR): Major civil and mechanical execution across key Indian plants, including the Kudankulam Nuclear Power Project (VVER-1000 reactors, including major mechanical installation orders for Units 5 & 6), Kakrapar, Kalpakkam, Kaiga, and Rajasthan Atomic Power Project (RAPS).
Fast Breeder Reactors: Civil execution and complex mechanical integration for India’s landmark Prototype Fast Breeder Reactor (PFBR) at Kalpakkam.
International Fusion Energy (ITER): Strategic participation in global fusion research projects, including the fabrication and installation support for the world's largest stainless-steel vacuum vessel (Cryostat) for the ITER project in Cadarache, France.
Other Infrastructure Capabilities
While nuclear power highlights the division’s highest level of engineering rigour, L&T HCI IC maintains a broad portfolio of mega-infrastructure capabilities:
Urban Mass Transit & High-Speed Rail: Turnkey execution of underground and elevated metro networks (including Delhi, Mumbai, Chennai, Riyadh, and Doha) utilising soft and hard-rock Tunnel Boring Machines (TBMs) and precast segmental construction.
Hydroelectric Power & Tunnelling: Full EPC "water-to-wire" hydro power development, including large underground powerhouses, head race tunnels, surge shafts, and concrete gravity dams in complex Himalayan geology.
Ports & Maritime Structures: Design and construction of deepwater ports, breakwaters, jetties, dry docks, and naval bases.
Special Structures & Defence: Strategic defence installations, blast-resistant structures, high-span cable-stayed bridges, and specialised structural engineering projects.
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Welcome L&T Special Steels & Heavy Forgings to NucFinder
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.
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