Hindalco powers India’s maritime future with indigenous aluminium solutions for shipbuilding sector

India’s maritime ambitions are advancing swiftly, propelled by strategic goals, technological innovation, and a robust drive for self-reliance. Amidst this transformation, Hindalco Industries Ltd. has emerged as a key enabler—establishing itself as a trusted domestic provider of high-performance aluminium solutions for shipbuilding and marine infrastructure, says Nilesh Koul, Senior President & CEO – Downstream Aluminium Business, Hindalco.

How is Hindalco positioning itself as a key supplier of aluminium for India’s growing shipbuilding and maritime infrastructure needs?

Being the premier downstream aluminium player in India, Hindalco has actively partnered with key Navy/maritime agencies in the country to develop aluminium products suitable for shipbuilding and maritime end applications. Using its proven manufacturing capability in both flat rolled products and extrusions, Hindalco is able to offer a range of sheets, plates, and extruded sections that are being used in shipbuilding as well as ship repair activities.

What are the advantages of using aluminium alloys over traditional steel in ship structures, decks, and superstructures, especially in terms of weight, corrosion resistance, and lifecycle costs?

Aluminium alloys, which are used in Navy/maritime end use, have very good corrosion resistance in marine environments. They offer a significant reduction in the overall weight of the ship, thereby allowing more carrying capacity and/or better speed—especially for smaller-sized boats, in which entire hull sections can be manufactured using aluminium alloy products. Similar use of aluminium alloy products for decks and superstructures in large-sized ships also results in a lower centre of gravity, thus offering better stability and manoeuvrability for those vessels.

Can you elaborate on the specific aluminium alloy solutions being developed by Hindalco for high-performance maritime applications?

Hindalco is supplying, for naval/maritime use, specific Al-Mg alloys developed jointly with Indian Navy HQ and the Directorate of Naval Architecture (DNA). This development was undertaken by Hindalco not only to increase aluminium usage in shipbuilding but also to reduce the dependency of Indian shipbuilders and shipyards on imported sources of aluminium alloy products.

Is Hindalco working with any Indian or global shipyards, marine engineering companies, or OEMs on aluminium-based components or maritime structural applications?

So far, Hindalco has focused on developing aluminium alloy products for the Indian shipbuilding industry. Having signed MoUs with key players and supplied products to shipbuilders as well as the Navy’s Material Organisation (MO), Hindalco will continue to position itself as the indigenous supplier of aluminium alloy products for the domestic naval/maritime industry. That said, as Hindalco enhances its capabilities, capacity, and product development efforts, global shipyards, shipbuilders, and their supply chain partners will also be on Hindalco’s supply radar.

How does Hindalco ensure quality, traceability, and performance standards in marine-grade aluminium products?

The plant locations from which Hindalco is supplying aluminium alloy products have the necessary certifications from reputed agencies like DNV and IRS. Qualifications/interactions are also ongoing with global agencies like ABS and LR. All the products supplied by Hindalco are inspected as per the QAP (Quality Assurance Plan), finalized according to the requirements of end users, naval entities, and the inspection/qualification agencies. These QAPs ensure that the properties and performance parameters are exactly as required for marine applications. As Hindalco is an integrated aluminium player, it is also able to maintain and provide customers with complete traceability of products- from the initial manufacturing stages of casting to the final finishing operations.

Do you see the maritime sector becoming a significant growth driver for aluminium usage in India over the next 5–10 years?

The maritime sector in India is expected to grow at a rapid pace, as our Navy and Coast Guard have embarked on fleet expansion to strengthen India’s maritime capability in the ocean territories around the country. The supply chain ecosystem for both the Indian Navy and Coast Guard has been given aggressive targets to increase the usage of aluminium for building vessels- both large and small- by actively sourcing aluminium alloy products from within India. This is bound to become a growth driver for aluminium usage in the country.

In fact, Hindalco will need to continue developing more products to cater to this growing demand by partnering with the Navy, Coast Guard, and other industry partners in the ‘Make-in-India’ and ‘Atmanirbhar Bharat’ initiatives.

Are there any plans to introduce new aluminium product lines or R&D initiatives specifically catering to maritime or shipbuilding requirements?

As the requirements of India’s maritime and shipbuilding industry increase and the partnerships between Hindalco and the shipbuilding/marine industry grow, it will be imperative for Hindalco to expand its existing product basket. To achieve this, Hindalco will also need to undertake the necessary R&D initiatives.

How does aluminium contribute to improving fuel efficiency and reducing the carbon footprint of vessels and marine operations?

The lower weight and superior strength-to-weight ratio of aluminium alloys vis-à-vis steel, when it comes to certain structures and components, result in overall weight reduction of the vessels. This naturally leads to improved fuel efficiency and lower carbon emissions, as fossil fuel consumption is reduced.

What role can aluminium play in the modernization of inland waterway vessels, coastal shipping, and defense marine assets?

The role played by aluminium alloys will be multifaceted:

• Inland Waterway Vessels and Coastal Shipping: Longer life due to corrosion resistance properties, improved fuel efficiency and lower carbon emissions due to reduced weight, faster travel due to increased speed owing to weight reduction.
• Defence Marine Assets: As mentioned earlier, aluminium alloys play a critical role in naval vessels by reducing overall weight, improving corrosion resistance, and enhancing stability and manoeuvrability.

In light of evolving geo-political dynamics, what kind of demand trends for aluminium is Hindalco witnessing in naval applications?

The evolving geopolitical dynamics mean that India will have to significantly increase its naval/maritime strength. This will involve expanding the naval fleet with the addition of better, faster, and more efficient ships, boats, and vessels of various kinds. As this demand grows, so will the demand for aluminium, as aluminium alloy products become the building materials of choice.