Need for Indigenisation of Defence Engineering Projects - Metalogic Webinar

ELI5 / TLDR

A trade-research outfit that covers Indian steel ran a webinar with four people who actually build defence things: a man who designs armoured vehicles, two military engineers who put up bases and bridges, and a sales head from Jindal Stainless. The honest answer that emerges across an hour: India makes most of its own ordinary structural steel now, but the hard stuff — armour plate, special alloys, high-strength cables — is still partly imported, and the reason is boring. Defence orders are small, the steel needed is expensive to make, and no factory wants to build a billion-rupee mill for a few hundred tons a year. Self-reliance is less a technology problem than an economics problem.

The Full Story

Where India actually stands

The framing is Atmanirbhar Bharat — self-reliance — but the panellists are refreshingly unwilling to pretend it’s done. Sanjay Mittal, a military engineer, put it most bluntly:

We have moved ahead very fast. No two doubts about it. But are we there where we should have been? We are totally dependent still.

The picture that emerges is a two-tier one. Common structural steel — the stuff that holds up buildings, jetties, bridges — is now largely made in India. The exotic stuff is not, or not reliably. Mr. Naidu of Armoured Vehicles Nigam (AVNL) Hyderabad walked through the history: India’s tank steels came as a 1970s technology transfer from Russia (the SP, Jackal and 54-pi armours on the T-series tanks). Defence Metallurgical Research Laboratory (DMRL) in Hyderabad, working with SAIL, eventually localised these to spec. So the older grades are solved.

The thickness problem nobody mentions

The most concrete admission came near the end, almost as an aside. Older armour plate — 8mm, 10mm and up, used since the 1960s — is made domestically by SAIL. But the thin stuff is the unsolved frontier:

Now the lighter thicknesses 4 mm to 6 mm is a challenge where Jindal could not do even now… but sale is still doing.

That 4–6mm band matters because the whole direction of modern armour is lighter. Drones and loitering munitions have changed the battlefield — a tank now needs air-defence systems bolted on top and the ability to move the instant it’s spotted (“even after getting the signature we should be moving out”). Heavy 55-tonne tanks are being ordered in smaller numbers; everyone wants light armoured fighting vehicles. Thin high-hardness plate is exactly what that needs, and it’s exactly what’s hardest to roll flat without distortion.

Why the market won’t solve it on its own

This is the genuinely useful thread, and it ran through three different speakers independently. Naidu, from the user side:

If you want to put a steel mill, it is a very highly capital intensive industry where you need thousands of tons of requirement of steel… 20 30 tons in how many numbers in a year you will produce — this all matters… that is why we may be not very much encouraged because of the low tail requirement of the steels.

Shalendra Bilala of Jindal Stainless, from the supplier side, said the same thing from the other direction. Defence demand is lumpy and tender-based — “Sometime one person gets sometimes other person gets” — so you can’t size a factory around it. Jindal’s actual strategy is to build capability that also serves commercial customers, then divert it to defence when an order lands:

Unless there is a visibility of demand from the commercial side it becomes very difficult to focus only on defence and then take a decision on investment.

So the bottleneck isn’t metallurgy. It’s that nobody will sink the capital for a market that’s small, irregular, and won’t pay a premium. Which leads to the third complaint.

The fixed-price trap

Bilala flagged a commercial mechanism that quietly punishes domestic suppliers. High-alloy steel takes a long time to make, and the alloying elements (nickel, chromium, etc.) swing wildly in price. But defence tenders are almost always fixed-price for the contract term:

Most of the tenders they come up with only a fixed price contract, so it becomes a big big challenge to manage our cost… I don’t have any solution for this.

His only mitigation is to book raw material the moment an order arrives — but you can’t buy everything at once, and oil, gas and alloy prices keep moving underneath you. The unstated ask, which Monica the host more or less voiced for him: government procurement needs a price-escalation clause, or it will keep making indigenous production a money-losing proposition.

What import dependence costs in practice

AK Singh, a military engineer, gave two war stories that make the abstract risk concrete. Around 2012–13 he needed armoured plate for a firing-range project; it wasn’t made in India, so it had to be imported — via an Indian middleman who was himself importing it, requiring import licences and long delays. (He’s since checked: it’s now made domestically by Hindustan Steel Corporation.) The second story is sharper. A cable-stayed bridge in Goa stalled during Covid because its high-strength steel cable came from China — and China had banned its export. The project simply stopped. His conclusion is why the military now prefers domestic even when it’s not strictly better:

In defense we prefer the item which are indigenously produced… so that the projects are not delayed because of the non-delivery of materials.

Self-reliance here isn’t nationalism. It’s supply-chain insurance against the day a supplier turns into a sanction.

The technical wall, itemised

Asked for the actual engineering challenges, Naidu gave the most substantive answer of the session — a useful checklist of what “make armour steel” really requires beyond the steel itself: vacuum melting and secondary refining; precision heat treatment; residual-stress and distortion control to within a millimetre across a long sheet; high-strain-rate impact and fracture testing (test runs of 30–48 hours, sometimes 35 days); ballistic qualification ranges that can handle 15–20kg blasts, which India largely lacks; certification agencies, anthropomorphic test devices, common standards and shared materials databases that are only now being built. And development cycles of one to two years per grade, because you queue for scarce test slots. His summary, to anyone thinking of entering the business: be “mentally ready first before investing into this.”

A small win, and the road ahead

There was one concrete success story. Jindal has taken a DMRL technology transfer for a blast-resistant stainless steel — originally meant to protect tank undersides from mines, now pitched for hangar roofs against top-attack drones, with the bonus that being stainless it resists corrosion underground. It’s the model the whole webinar implicitly argues for: a government lab develops the grade, a private mill industrialises it.

Looking forward, Naidu rattled off the materials wishlist: high-entropy alloys (superior strength-to-weight), nanostructured steels, ceramic composite armour (silicon carbide, boron carbide) for 30–40% weight reduction, titanium alloys that could cut a tank’s weight by a third, functionally graded materials, additive manufacturing for complex parts, and AI-driven alloy design with digital twins to shorten those brutal development cycles. Whether much of this is near-term or wishlist is left politely unexamined.

The architects added a quieter theme: Covid taught rapid construction (segregated emergency hospitals built fast), and the new instruction is to build underground — shell-proof shelters on the Israel model, because “we have enemies all around, we don’t have friends.”

Key Takeaways

• India is largely self-sufficient in ordinary structural steel but still imports specialised armour plate, high-strength cable steel, and special alloys.
• The hardest unsolved domestic gap is thin armour plate (4–6mm) — SAIL can make it, Jindal cannot yet. It matters because modern armour is moving lighter.
• Older tank-armour grades (T-series) came via 1970s Russian technology transfer, later localised by DMRL Hyderabad with SAIL.
• The real bottleneck is economics, not metallurgy: defence orders are small, lumpy and tender-based, so no one will fund a capital-intensive mill for low, irregular volume.
• Jindal’s playbook: build dual-use capacity that serves commercial customers, divert to defence when orders land. Pure-defence investment doesn’t pencil out.
• Fixed-price defence tenders are a structural problem — alloy prices swing over the long production cycle, but contracts won’t escalate. Suppliers have no clean hedge.
• Import dependence has bitten before: a Goa cable-stayed bridge stalled when China banned export of its high-strength cable steel during Covid.
• Making armour steel requires a whole ecosystem India is still building: vacuum melting, ESR (electro-slag refining), large blast/ballistic test ranges (15–20kg), certification bodies, shared standards. Jindal recently added ESR and is commissioning a forging press.
• Development of a single new grade/thickness can take 1–2 years, partly due to scarce ballistic-test slots.
• Domestic suppliers named: SAIL, Midhani, AMNS (ArcelorMittal Nippon Steel), JSW, Jindal Stainless. Hindustan Steel Corporation now makes formerly-imported armoured plate.
• One concrete win: Jindal’s DMRL-licensed blast-resistant stainless steel, repurposed from anti-mine tank protection to anti-drone hangar roofing.
• Future materials wishlist: high-entropy alloys, nanostructured steels, ceramic composites (SiC/B4C), titanium alloys, functionally graded materials, additive manufacturing, AI-driven alloy design.
• New defence-construction directive: build underground, shell-proof — explicitly modelled on Israel.

Claude’s Take

This is a Metalogic webinar, and Metalogic is a steel-and-mining research and events business — the first three minutes are an ad reel for their portal, memberships and an upcoming Delhi conference, and the host plugs both repeatedly. The poll questions (“Can India become a global hub for defence-grade steel?”) are content marketing dressed as audience engagement; the report becomes a paywalled deliverable on mymetalogic.com. Read it with that tilt in mind: the panel is friendly, the questions are soft, nobody is adversarial, and “things are improving, government is giving incentives” is the default closing note for every speaker.

That said, it’s more honest than the format deserves. Because the panellists are actual practitioners rather than spokesmen, the real answer keeps leaking out: India can make the metallurgy, but the market structure won’t pay for it. The fixed-price-tender complaint and the dual-use-capacity workaround are the two genuinely useful insights — they explain why “Atmanirbhar in defence steel” is harder than a list of grades suggests, and they’re the kind of thing you won’t read in a press release.

The score is held down by execution, not substance. The audio is badly broken in long stretches (whole answers dissolve into fragments — “much better in the world market as well… helping them and”), so several replies are unrecoverable. There are no hard numbers on import share, capacity, or rupee value of the gap. And it’s a panel of polite generalities punctuated by a few sharp specifics. Worth it for the economics-of-indigenisation argument and the thin-plate gap; skip if you wanted data.

Score: 6/10 — genuine practitioner candour on why self-reliance is an economics problem, buried inside a promotional webinar with mangled audio and no quantification.