ISMT

What ISMT does

ISMT Limited (formerly Indian Seamless Metal Tubes) is the largest integrated specialized seamless tube manufacturer in India and one of the most diversified globally, producing tubes in the 6–273 mm OD range through a combined Assel Mill and PQF Mill configuration at its Ahmednagar and Baramati plants. The company is vertically integrated upstream into alloy steel production at its Jejuri steel plant (350,000 MT/annum via EAF-LRF-VD-CCM-RM route, with oxygen capped at 25 ppm for carbon/alloy steels and 15 ppm for bearing steels), and operates a 40 MW captive thermal power plant in Chandrapur plus a planned 70 MW captive solar facility, together covering the bulk of its energy needs. ISMT serves seven principal end-markets — automotive, bearings, OCTG (oil & gas), mining, power generation, construction, and general engineering — with products including OCTG casings, boiler and heat-exchanger tubes, rifled boiler tubes, hydraulic cylinders, bearing races, drill rods, and structural hollow sections, supported by API Monogram, IATF 16949, ISO 14001/45001, IBR, BIS, and PED/CPR certifications.

ISMT generates revenue primarily through B2B hardware sales of steel bars and seamless tubes, supplemented by its ISMT 360 distribution division serving OEMs, SMEs, and retailers ex-mill or ex-stock. Go-to-market combines direct regional sales offices in India, Sweden, the UK, and North America with an exclusive channel partnership with Thyssen Krupp Mannex for OCTG sales in the US, Canada, Iran, Iraq, Algeria, and other North African and Middle Eastern markets, reinforced by recurring participation in 15+ international trade shows. Following Kirloskar Ferrous Industries Limited's acquisition of a 51.25% controlling stake in March 2022 for Rs 476.63 crore, ISMT became a KFIL subsidiary; the NCLT-sanctioned merger scheme (order dated 24 July 2024, appointed date 1 April 2023) is set to amalgamate ISMT into KFIL, consolidating iron-making, steel-making, and seamless tube operations under a single entity.

Name

ISMT

Legal name

Indian Seamless Metal Tubes Limited

Website

https://ismt.co.in

Company type

Public

Founded year

1977

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

ISMT Limited is India's largest integrated specialized seamless tube manufacturer, producing 6–273 mm OD tubes and alloy steel bars for automotive, bearing, OCTG, mining, power generation, and construction customers globally, and is being merged into parent Kirloskar Ferrous Industries.

Ownership category

akta.pro rank

Product category

Specialty Steel and Seamless Tube Manufacturing

NAICS

All Other Fabricated Metal Product Manufacturing (33299)

SIC

Steel Pipe & Tubes (3317), Steel Works, Blast Furnaces & Rolling & Finishing Mills (3310)

akta.pro primary industry

Pipe & Tube Manufacturing (Seamless & Welded OCTG/Line Pipe/Structural Tube) (IMAKABAI)

Keywords

• Seamless steel tubes
• Alloy steel manufacturing
• Oil country tubular goods
• Boiler tubes manufacturing
• Automotive steel components

Headquarters

HQ city

Pune

HQ country

India

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Seamless Tubes and Tubular Products: ISMT generates primary revenue from manufacturing and selling specialized seamless tubes in the range of 6 to 273 mm OD. Products include OCTG products, bearing races, drill rods, boiler tubes, heat-exchanger tubes, hydraulic line pipes, hydraulic cylinders, auto components, and precision parts.
2. Special Engineering Steels: Revenue from producing and selling carbon, alloy, and martensitic stainless steel bars including ultra-clean steels, free machining steels, bearing steels, and specially engineered steel grades. Products supplied as-cast rounds, rolled rounds, round cornered squares (RCS), and bright bars.
3. ISMT 360 Distribution Services: ISMT360 division provides complete supply solution for steel requirements to OEMs, SMEs, and retailers. Deals in wide array of products including Pipes & Tubes, Structural Steel, and Flat products, servicing requirements either ex-mill or ex-stock.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels3 records

Core offering

ISMT Limited is an integrated manufacturer of specialized alloy steels and seamless tubes, operating its own steel plant (EAF-LRF-VD-CCM route) at Jejuri and tube plants (Assel Mills and PQF Mill) at Ahmednagar and Baramati. The company produces and sells carbon, alloy, and martensitic stainless steel bars and seamless tubes in sizes from 6 mm to 273 mm OD, supplying OCTG, boiler, heat-exchanger, automotive, bearing, hydraulic, mining, power-generation, and structural applications to industrial OEMs and enterprise customers.

Product overview

ISMT Limited is a manufacturing company offering a diversified portfolio of steel and seamless tube products. The core offerings include: (1) Steel division producing alloy steels, carbon steels, bearing steels, and stainless steels through electric arc furnace route; (2) Tubes division manufacturing specialized seamless tubes ranging 6-273mm OD for automotive, bearing, OCTG, mining, power generation, and construction sectors; (3) ISMT 360 service division for supply chain solutions; and (4) IPP (Precision Parts) for machined components. The company operates integrated manufacturing facilities including steel plant, tube plants, and captive power plants.

Differentiator

Problem solved

Functional benefit

Brands

• ISMT 360: A division of ISMT Limited providing complete solutions for steel requirements - a one-stop solution for OEMs, SMEs, and retailers for pipes, tubes, structural steel, and flat products.
• ISMT Precision Parts (IPP)

Products and services

• Specialty Alloy Steel Carbon, alloy, and martensitic stainless steel bars including ultra-clean steels, free machining steels, and bearing steels produced via EAF-LRF-VD-CCM route at the Jejuri Steel Plant (350,000 MT/annum). Supplied as cast rounds, rolled rounds, round cornered squares (RCS), and bright bars.
• Specialized Seamless Tubes Hot-finished and cold-finished seamless tubes in the range of 6 mm to 273 mm OD, manufactured using the unique combination of Assel Mills and PQF Mill technology at the Ahmednagar and Baramati tube plants (250,000 MT/annum combined). Used across automotive, bearings, OCTG, boilers, heat-exchangers, hydraulic, mining, power generation, and construction applications.
• OCTG (Oil Country Tubular Goods) Casings, tubings, line pipes, and couplings for the oil exploration sector, manufactured to API 5CT and API 5L specifications under API monogram facility approval. Includes API Q1 certified production for upstream oil and gas customers.
• High Collapse Casing Pipes Specialized casing pipes engineered for high-collapse performance in high-pressure oil and gas exploration environments.
• Automotive Components Value-added automotive components including starter gears, spindle axles, ready-to-hone tubes for hydraulic cylinders, and CV joint cages produced under IATF 16949 quality systems for automotive OEMs and tier-1 suppliers.
• Bearing Tubes and Bearing Rings Cold rolled and machined tubes and rings for ball bearings and linear bearings, with inner races and multi-track sleeves. Produced using ultra-clean bearing steel grades with controlled oxygen and inclusion ratings.
• Hydraulic Line Pipes Seamless tubes designed for hydraulic systems and fluid power applications.
• Hydraulic Cylinders Swaged and machined axles for trucks, steering columns for two-wheelers, and ready-to-hone tubes for hydraulic cylinders available in Type I, II, and III configurations.
• Tubes for Mining Seamless tubes for mining applications including wireline drill rods, core barrel assemblies, DTH hammer casings and pistons, directional drilling tubes, drill casings, thin wall tubes, and tunneling bolts.
• Hollow Bars Hollow bar products including speedCut™ Hollow Bars for various industrial applications.
• Powergen Tubes Tubes for power generation including multi-rifled tubes, header pipes, U-bent heat-exchanger tubes, and creep-resistant alloy steel tubes in grades T11, T12, T23, T91, and T92. Long lengths up to 25.5 meters with IBR and PED certifications.
• UHS™ Structural Tubes Ultra High Strength structural tubes conforming to European Standard EN 10210 for hot finished structural hollow sections used as beams, columns, and load-bearing elements in construction.
• ISMT 360 Distribution Services One-stop supply solution division providing pipes, tubes, structural steel, and flat products to OEMs, SMEs, and retailers, served either ex-mill or ex-stock through a network of verified suppliers and manufacturers.
• ISMT Precision Parts (IPP) Strategic business unit specializing in cold rolled and machined bearing rings, cages for constant velocity joints, cylinder liners, steering bushes, and precision turned components for automotive and bearing industry customers.

Quantifiable outcome

• 40 MW captive power plant reduces variable costs by hedging against government power cost increases
• +2 more outcomes

Named customers1 record

Segments7 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Thyssen Krupp Mannex (TKM)coreChannel Partner/ Reseller/ Distributor · 12 September 2009Thyssen Krupp Mannex signed an agreement to represent ISMT for the sale of OCTG tubes in U.S.A., Canada, Iran, Iraq, Algeria and certain other countries in North Africa and the Middle East. With the addition of a new PQF Mill, ISMT became positioned to supply high quality casings, tubings, and line pipe required by the oil exploration sector. The addition of TKM to ISMT's marketing network was expected to boost OCTG tube sales and establish ISMT as a global supplier. TKM is an internationally operating trading company offering tubes, pipes, rolled steel, machines, industrial plant and equipment, products for offshore applications and marine structures.

Scale indicators7 records

Recent moves11 records

Expansion highlights5 records

Direct peers

• Tubacex: Spanish global supplier of seamless stainless steel tubes for power generation, oil and gas, and petrochemical markets. Comparable to ISMT's specialty alloy tube portfolio for power generation and high-collapse casing applications.
• Welspun Corp: Indian large-diameter pipe manufacturer for oil and gas, water, and structural applications. Adjacent competitor in pipe products serving energy and infrastructure markets with comparable customer profiles.
• Ratnamani Metals & Tubes: Indian manufacturer of stainless steel tubes, carbon steel tubes, and pipe fittings. Comparable to ISMT in carbon/stainless steel tubes and heat-exchanger tubes across industrial segments.
• Maharashtra Seamless Limited: Indian seamless tubes manufacturer with overlapping product portfolio including OCTG, line pipes, and boiler tubes. Most direct domestic competitor to ISMT in the Indian seamless tubes market.
• Jindal Saw: Indian large-diameter pipe and tube manufacturer serving oil and gas, water, and structural markets. Comparable to ISMT in line pipes and OCTG-adjacent products, with broader exposure to ductile iron pipes.

Broad incumbents

• Sandvik: Swedish engineering group with materials technology division producing seamless tubes for industrial, heating, and power applications. Comparable to ISMT's bearing steel and specialty alloy tube offerings.
• Tenaris: Global leader in seamless and welded steel pipe products for oil and gas, with extensive OCTG portfolio. Directly comparable to ISMT in OCTG, line pipe, and industrial tubes, though at significantly larger scale and broader geographic reach.
• Vallourec: French-headquartered global supplier of premium seamless tubes, especially for oil and gas and power generation. Comparable to ISMT in OCTG and industrial seamless tubes, with similar specialty steel and clean steel capabilities but broader geographic presence.

Others

• Kirloskar Ferrous Industries Limited: Parent company of ISMT (51.25% stake, merger scheme pending). Pig iron and steel producer that provides upstream raw material integration. Highly relevant as the absorbing entity in the merger.

Regional players

• Bharat Forge: Indian large-scale forging and auto components manufacturer with exposure to automotive, oil and gas, and industrial segments. Comparable to ISMT's auto components and IPP (precision parts) divisions, though focused on forgings rather than tubes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/ismt-limited-tube-works

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ISMT