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Cover Story
By implementing this process resistance, Stress Corrosion Cracking can be enhanced in products, which reduces micro cracks and surface imperfections which is helpful in application of aerospace, power and nuclear plants.
improve which will be useful during process in Power plants. This momentum continued into 2026 with the establishment of a specialised Large Seamless Pipe Division at Unit 3 in Mandali. The operation adds 18,000 MTPA of capacity and extends HMT’ s manufacturing range into precision-engineered seamless pipes from 6 to 40 inches OD, particularly for power and heavy engineering applications. Advanced turning and peeling equipment and a 32-probe ultrasonic testing system form part of the new manufacturing and inspection infrastructure. Another development has been the company’ s move into high-precision seamless coil tubing. Through Heavy Metal Fine Tubes, HMT’ s tubular manufacturing experience is now being applied to stainless steel and corrosion-resistant alloy coil tubing for critical applications. The product range includes austenitic stainless steels, duplex and super duplex grades as well as Monel and Inconel, with coil lengths reaching up to 500 metres depending on size. These developments build on earlier investments such as dedicated shot-peening equipment for stainless steel tubes, introduced to improve surface integrity and fatigue performance in demanding applications including the power and nuclear sectors. Taken together, the investments represent the latest stage in a manufacturing journey that began with colddrawn carbon steel tubing almost five decades ago. The scale and technology have changed considerably since then, but the principle behind HMT’ s growth remains familiar: broaden its capabilities while maintaining control over quality and production. For heat exchanger and boiler manufacturers, this means access to an increasingly wide range of tubular products from a supplier that has made these applications a central part of its business. As HMT continues to expand its capacity and specialist capabilities, the combination of quality and integrity that has shaped its history remains the foundation for its next chapter.
Dedicated plants
Plant for cold drawn stainless steel seamless tubes and pipes 27,500 m2 covered area
1 Piercing Mill 32 pilger mills 4 cold draw benches 3 controlled atmosphere furnaces 1 Solution annealing furnace 3 U-bending machines 3 U-bending SR setups
Plant for hot & cold drawn carbon and alloy steel tubes and pipes 45,000 m2 covered area
1 Piercing Mill + Accu-Roll + SRM 11 draw benches 4 Pilger machines 2 U-bend machines 1 U-bend SR furnace 1 U-bend electric resistance heating setup 1 controlled atmosphere furnace 4 roller hearth furnace
Milestone Projects / Jobs: T-91 grade tubes:
• Supplied 900 MT to BHEL, Trichy for NTPC, Talcher Project( 2 × 660 MW)
• Currently executing an additional 863 MT order for the same Client T-92 G T-91 grade tubes:
• Successfully supplied 11 MT to NTPC, Gadarwara Project T-12 grade tubes:
• Ongoing execution of 821 MT order to BHEL, Trichy for various NTPC projects T-22 grade tubes:
• Currently executing a major 3000 MT order to BHEL, Trichy for NTPC applications
GR. A1 / T-22 / T-2 / TP-304H grade tubes:
• Exported 183 MT to a USA-based client
• Order value: USD 1.19 million Super S30432( shot peened) grade tubes:
• Booked order of 1150 MT order from BHEL, Trichy for NTPC Plants at Lara, Singrauli, SIPAT, and DVC Koderma( 2 × 800 MW)
TP-347H( shot peened) grade tubes:
• Successfully executed 642 MT order for NTPC projects via BHEL, Trichy
TP-304N grade“ U” tubes:
• Supplied 44 MT to BHEL, Bhopal for HP Heater Application
• Supplied more than 70,000 U tubes for Ultra Super Critical Power plants
• Tubes hydro-tested upto 625 Kg / cm ² pressure Heavy wall rifle tubes:
• Supplied SA210 Gr. C Tubes to NTPC, Singrauli. Size: 63.5mm OD × 12.50 mm WT P-91 grade tubes:
• Supplied to BHEL, Trichy in multiple sizes: 127 × 20 mm, 114.3 × 17.12 mm; 88.9 × 17 mm, 88.9 × 15.24 mm
TP-310 grade tubes:
• Executed 10 MT order for Tata Chemicals TP-321 grade special shape bend tubes:
• Pig Tails supplied to BPCL up to 5 radius Long length tubes:
• 27.5 Mtr. straight tubes in SA179 supplied to Brembana & Rolle, Italy The only NTPC approved manufacturer for the entire range of materials:
• Carbon Steel / Alloy Steel( which includes T91, T-92, and T-23 grades) / Stainless Steel( including Super 304) www. heat-exchanger-world. com Heat Exchanger World October 2026
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