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Drill Collars · Flanges · Connectors
Inox Steel India is a trusted manufacturer, supplier, and exporter of forged and machined oil & gas industry components, supplying drill collars, API flanges, connectors, and critical forged parts for onshore and offshore exploration, drilling, and production operations across India, GCC, Middle East, Africa, Europe, and the Americas.
Oil & gas components operate in some of the harshest service environments—extreme pressure, high torque, corrosive fluids (H₂S, CO₂, chlorides), cyclic loading, and wide temperature variations. Any compromise in material quality, forging integrity, or heat treatment can lead to catastrophic failures, downtime, and safety risks. This is why forged components with controlled metallurgy and API compliance are essential.
At Inox Steel India, oil & gas components are produced using heavy open-die and closed-die forging, followed by application-specific heat treatment and precision machining, fully aligned with API, ASTM, ASME, and project-specific oilfield standards.
Drill Collars
Drill collars are thick-walled, heavy forged tubular components used in drill strings to provide weight on bit (WOB) and maintain drilling stability under high torque and compressive loads.
Flanges
Flanges are pressure-retaining forged components used to connect pipes, valves, wellhead equipment, and pressure systems in oil & gas installations.
Connectors
Connectors include threaded, hub-type, or clamp connectors that ensure leak-proof, high-pressure connections between drilling and production equipment.
These components must withstand:
Forged construction ensures directional grain flow, superior fatigue resistance, and long-term reliability.
Oil & gas service demands materials with exceptional strength, toughness, corrosion resistance, and fatigue performance. Forging improves internal integrity and eliminates defects common in cast or fabricated parts.
🔹 Alloy Steels (EN19, EN24, A182 F11 / F22)
Used for high-strength drilling and pressure components, offering:
🔹 Duplex & Super Duplex Stainless Steels (F51 / F53 / F55)
Used in offshore and sour service, offering:
🔹 Low-Temperature Carbon Steel (A350 LF2)
Used for low-temperature and sub-zero service, offering:
Drill Collars · Flanges · Connectors
Manufacturer, Supplier & Exporter – Inox Steel India
| Parameter | Oil & Gas Industry Components |
|---|---|
| Product Type | Forged & Machined Oil & Gas Components |
| Typical Products | Drill Collars · API Flanges · Connectors · Couplings · Subs · Heavy Forged Blocks |
| Manufacturing Process | Open Die Forging / Closed Die Forging → Heat Treatment → Rough / Finish Machining |
| Applicable Grades | ASTM A182 F11 · F22 · F51/F53 (Duplex) · F55 · ASTM A350 LF2 · EN19 · EN24 |
| Material Category | Alloy Steel · Duplex & Super Duplex SS · Low-Temperature Carbon Steel |
| Applicable Standards | ASTM · ASME · API |
| Oil & Gas Codes | API 6A · API 7-1 · API 5CT (component dependent) |
| Supply Condition | Quenched & Tempered · Normalized & Tempered · Solution Annealed |
| Operating Conditions | High Pressure · High Torque · Corrosive Media · Cyclic Loading |
| Temperature Service Range | Sub-zero to High Temperature (grade dependent) |
| Dimensional Range | As per API / customer drawing |
| Machining Scope | CNC Turning · Boring · Threading · Facing · Drilling |
| Heat Treatment Options | Q&T · PWHT · Solution Annealing |
| Testing Performed | UT · MPI · PMI · Mechanical Tests |
| Inspection Standard | API · ASTM · ASME |
| Certification | EN 10204 3.1 / 3.2 |
| Typical End Use | Onshore & Offshore Drilling · Wellhead Systems · Flowlines |
| HS / HSN Code | 7228 / 7307 (component dependent) |
📌 This Master Datasheet applies to all Oil & Gas Industry components supplied by Inox Steel India, including drill collars, flanges, and connectors.
In India, forged oil & gas components are widely used in ONGC operations, refineries, offshore platforms, and EPC projects, especially along western offshore regions, Gujarat, Rajasthan, and eastern exploration zones.
Inox Steel India supports these projects with robust forging capability and export dispatch via JNPT, Mundra, and Hazira ports.
Oil & Gas Industry components supplied by Inox Steel India are engineered for extreme pressure, high torque, corrosive service, and cyclic loading, where material integrity, forging quality, and API compliance are mandatory. Each component is manufactured based on well conditions, pressure rating, temperature range, and service environment, ensuring safe and reliable field operation.
Inox Steel India manufactures and supplies a comprehensive range of forged and machined oilfield components, including:
All components are manufactured strictly in accordance with API and project specifications.
Service Conditions: High torque and axial load | High pressure drilling operations
Typical Use: Drill collars | Downhole tools | Pressure-containing connectors
Service Conditions: Offshore and sour service | Chloride and H₂S environments
Typical Use: Offshore flanges | Wellhead and subsea connectors
Service Conditions: Sub-zero and cold climates | LNG and gas processing systems
Typical Use: Low-temperature flanges | Cryogenic oil & gas equipment
| Component | Capability |
|---|---|
| Drill Collars | Small to heavy wall sections |
| Flanges | API pressure classes |
| Connectors | Threaded / hub profiles |
| Machining Tolerance | API / customer specified |
| Thread Profiles | API standard threads |
Heavy-section forgings and precision machining available for onshore and offshore applications.
Pricing depends on:
Forged oil & gas components offer higher reliability and lower lifecycle cost compared to fabricated alternatives.
All oil & gas components are supplied after stringent inspection in accordance with API standards.
Third-Party Inspection:
All materials are supplied with EN 10204 3.1 / 3.2 certification and full traceability.
Ports of Dispatch: JNPT (Mumbai) · Mundra · Hazira
Inox Steel India is a trusted manufacturer, supplier, and exporter of forged and machined oil & gas components, delivering API-compliant, high-integrity components for critical drilling, production, and flowline applications.
Our key strengths include:
We focus on supplying failure-resistant oilfield components that ensure safety, uptime, and long service life.
| Industry | Application | Preferred Grade |
|---|---|---|
| Onshore Drilling | Drill collars & subs | EN19 / EN24 |
| Offshore Drilling | High-strength connectors | Duplex / Super Duplex |
| Refineries | High-pressure flanges | A182 F11 / F22 |
| Gas Processing | Low-temperature flanges | A350 LF2 |
| Wellhead Systems | API connectors | Duplex / Alloy Steel |
| EPC Oil & Gas Projects | Custom forged components | All Grades |
Regular Export Destinations: UAE · Saudi Arabia · Oman · Qatar · Nigeria · South Africa · Norway · UK · USA · Brazil
Whether your requirement is API drill collars,
high-pressure oil & gas flanges, or
precision connectors for offshore drilling,
our technical team will assist you from material selection to final delivery.
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
alloy@inoxsteelindia.in, steel@inoxsteelindia.in
+91 9930796690
Yes. Duplex and super duplex grades suitable for sour and offshore service are available. Yes. SSC and HIC testing can be provided as per project requirements. Yes. All components are supplied strictly as per approved drawings. Yes. We regularly export to GCC, Europe, Africa, and the Americas. Yes. We supply components for both onshore and offshore oil & gas operations. Can you supply sour-service and offshore-grade materials?
Do you provide NACE testing?
Can you manufacture as per API drawings and EPC specs?
Do you export oil & gas components globally?
Do you supply both onshore and offshore components?
Inox Steel India is a leading manufacturer & exporter of Oil & Gas Industry Components including drill collars, flanges & connectors. Supplying API-compliant forged components for onshore & offshore oilfield projects worldwide.