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Carbon Steel Forged Bars Manufacturer, Supplier & Exporter – Inox Steel India

Grades: ASTM A105, ASTM A350 LF2, C45

Inox Steel India is a trusted manufacturer, supplier, and exporter of Carbon Steel Forged Bars, offering high-integrity forged solutions in ASTM A105, ASTM A350 LF2, and C45 grades for demanding industrial applications across India, GCC, Middle East, Africa, Europe, and North & South America.

Carbon steel forged bars are specifically engineered for high-load, pressure-bearing, and safety-critical components, where internal soundness, directional grain flow, and mechanical reliability are essential. Compared to rolled or cast products, forging delivers superior strength, improved fatigue resistance, and consistent performance under cyclic stress and pressure.

At Inox Steel India, forged bars are produced using controlled hot-forging processes, followed by normalizing or quench & temper heat treatment, ensuring uniform metallurgical properties and compliance with ASTM, ASME, EN, and DIN standards.

Table of Contents

What Are Carbon Steel Forged Bars?

Carbon steel forged bars are solid metal sections manufactured by hot deformation of carbon steel billets under compressive force. This process realigns and refines the internal grain structure, eliminating porosity and improving directional strength along the load path.

Unlike hot-rolled bars, forged bars provide:

  • Higher impact toughness
  • Better fatigue life
  • Improved pressure resistance
  • Reliable performance in critical engineering systems

These characteristics make carbon steel forged bars the preferred raw material for pressure vessels, valves, flanges, shafts, gears, and heavy mechanical components.

Manufacturing Process Followed at Inox Steel India

  1. Billet Selection: High-quality carbon steel billets conforming to ASTM A105, A350 LF2, or EN C45 chemistry are selected for forging.
  2. Hot Forging: Billets are heated to controlled temperatures and forged using open-die or closed-die forging, ensuring proper grain flow and dimensional integrity.
  3. Heat Treatment: ASTM A105: Supplied in as-forged or normalized condition. ASTM A350 LF2: Normalized or quenched & tempered for low-temperature service. C45: Normalized or QT for improved hardness and machinability.
  4. Rough Machining (Optional): Forged bars can be supplied with rough-machined surfaces for faster downstream CNC operations.
  5. Inspection & Testing: Each forged bar undergoes UT, MPI, mechanical testing, and dimensional checks to ensure defect-free material.

Key Advantages of Carbon Steel Forged Bars

  • Superior mechanical strength compared to hot-rolled bars
  • Excellent load-bearing and pressure-handling capability
  • Directional grain flow improves fatigue and impact resistance
  • Reliable performance in high-temperature and low-temperature service
  • Better machinability for shafts, flanges, and precision components
  • Long service life with reduced risk of internal failure

What Are Carbon Steel Forged Bars?

Carbon steel forged bars are solid metal sections produced by hot deformation of carbon steel billets under compressive force. Forging refines grain structure, eliminates porosity, and improves directional strength along the load path.

  • Higher impact toughness
  • Improved fatigue resistance
  • Superior pressure handling
  • Consistent performance in critical systems

Forged bars are widely used for pressure vessels, valves, flanges, shafts, gears, and heavy mechanical components.

Applications by Grade & Industry

ASTM A105 Carbon Steel Forged Bars
Service Focus: High-temperature and pressure service
Typical Applications: Forged flanges and valve bodies, Pressure vessel components, Pipe fittings and connectors, Power plant headers and manifolds, Oil & gas process equipment
Industries Served: Oil & Gas | Power Plants | Petrochemical | Refineries | EPC Contractors
ASTM A350 LF2 Carbon Steel Forged Bars
Service Focus: Low-temperature and cryogenic service (down to -46°C)
Typical Applications: LNG and cryogenic pressure vessels, Low-temperature valves and fittings, Offshore oil & gas components, Subsea connectors and hubs, Cold-region pipeline systems
Industries Served: LNG Plants | Offshore & Marine | Oil & Gas | Energy Infrastructure
C45 Carbon Steel Forged Bars
Service Focus: Mechanical and structural applications requiring higher hardness
Typical Applications: Shafts, spindles, and axles, Gears, pins, tie rods, Hydraulic components, Heavy machinery parts, Automotive and engineering components
Industries Served: Automotive | Heavy Engineering | Machine Tools | General Fabrication

Carbon Steel Forged Bars – Applications, Sizes, Pricing & Quality

Carbon Steel Forged Bars supplied by Inox Steel India are designed to meet stringent engineering, pressure, and mechanical performance requirements. Each grade is selected based on temperature range, load condition, impact requirement, and machining needs, ensuring safe and long-lasting service life in critical applications.

Size & Dimensional Range

Inox Steel India supplies carbon steel forged bars in standard and custom dimensions, suitable for rough machining or finished CNC components.

Form Size Range
Forged Round Bars 50 mm – 900 mm Diameter
Forged Square Bars 50 mm – 600 mm
Forged Flat Bars Up to 600 mm width
Custom Forged Shapes As per drawing
Rough Machined Bars As per machining allowance

Cut lengths and machining allowances can be customized as per project drawings.

Carbon Steel Forged Bars – Indicative Price Range (2025)

Grade Price Range (INR / Kg) Price Range (USD / Kg) Remarks
ASTM A105 ₹ 95 – ₹ 130 $ 1.15 – $ 1.55 Pressure-grade forging
ASTM A350 LF2 ₹ 120 – ₹ 160 $ 1.45 – $ 1.90 Impact-tested forging
C45 ₹ 85 – ₹ 120 $ 1.05 – $ 1.45 Mechanical-grade forging

Prices are indicative and vary based on size, heat treatment, machining, testing, and quantity.

HS / HSN Code – Carbon Steel Forged Bars

HSN Code (India): 7228
Alternate (Machined Parts): 8483 (application-based)
Final classification depends on supplied condition (as-forged / machined).

Testing & Quality Assurance

Every Carbon Steel Forged Bar supplied by Inox Steel India undergoes strict quality control as per ASTM and EN standards.

Standard Tests Conducted:

  • Ultrasonic Testing (UT)
  • Magnetic Particle Inspection (MPI)
  • Tensile & Yield Strength Test
  • Elongation & Hardness Test
  • Impact Testing (Mandatory for A350 LF2)
  • Dimensional & Visual Inspection
Optional Third-Party Inspection:

  • SGS, TUV, BV, DNV, Lloyd’s (as per customer requirement)

All material is supplied with EN 10204 3.1 / 3.2 Mill Test Certificates ensuring full traceability.

Global & Indian Demand Insight

In India, ASTM A105 and LF2 forged bars see strong demand in refineries, fertilizer plants, power stations, and EPC projects across Mumbai, Hazira, Vadodara, Chennai, and Vizag.

Internationally:

  • GCC & Middle East: High demand for A105 and LF2 in oil & gas and LNG projects
  • Africa: Infrastructure, energy, and mining equipment
  • Europe: EN-compliant C45 forged bars for mechanical engineering
  • Americas: Pressure equipment and valve manufacturing

Inox Steel India supports these markets with ready stock, export-grade packaging, and fast dispatch from JNPT, Mundra, and Hazira ports.

Why Choose Inox Steel India for Carbon Steel Forged Bars?

Inox Steel India is not just a supplier — we are a forging-focused engineering partner trusted by OEMs, EPC contractors, and global buyers for pressure-grade and mechanical-grade carbon steel forged bars.

What sets us apart:

  1. In-house sourcing from approved forging mills
  2. Complete control on heat treatment & testing
  3. Supply in as-forged, normalized, QT & rough-machined condition
  4. Strict ASTM / ASME / EN compliance
  5. Project-ready documentation with EN 10204 3.1 / 3.2
  6. Competitive pricing for domestic & export orders
  7. Proven exports to GCC, Europe, Africa & Americas

Our forged bars are engineered for zero internal defects, consistent grain flow, and long service life, making them ideal for safety-critical applications.

Industries & Applications Served

Industry Application Preferred Grade
Oil & Gas Valves, flanges, connectors ASTM A105
Power & Energy Turbine parts, manifolds ASTM A105
LNG & Cryogenic Low-temp pressure parts ASTM A350 LF2
Marine & Offshore Structural & pressure components A350 LF2
Automotive Shafts, axles, pins C45
Heavy Engineering Gears, spindles, tie rods C45
EPC & Fabrication Pressure vessel components A105 / LF2

Export Packaging & Logistics

All carbon steel forged bars are packed as per international export standards to ensure damage-free delivery.

Packing Details:

  • Anti-rust oil & VCI protection
  • Heat-wise marking on each forged bar
  • Wooden pallets / steel crates for overseas shipment
  • Container-ready packing for long-distance exports

Export Destinations:
UAE · Saudi Arabia · Oman · Qatar · Nigeria · South Africa · Germany · Italy · USA · Brazil

Ports of Dispatch:
JNPT (Mumbai) · Mundra · Hazira

Talk to Forging Experts

Whether you need ASTM A105 forged bars for pressure equipment,
A350 LF2 for cryogenic service, or
C45 forged bars for mechanical components,
our technical team will guide you on grade selection, sizing, heat treatment, and pricing.

Inox Steel India

52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004

Email

alloy@inoxsteelindia.in

Phone

+91 9930796690

Frequently Asked Questions (FAQs)

Yes. Forging improves grain flow, fatigue strength, and impact resistance compared to rolled bars.

HSN code is 7228 (final classification depends on supplied condition).

We supply rough-machined forged bars with machining allowance.

SGS, TUV, BV, DNV, and Lloyd’s inspection can be arranged.

We regularly export to GCC, Europe, Africa, and the Americas.

Inox Steel India is a leading manufacturer & exporter of Carbon Steel Forged Bars in ASTM A105, A350 LF2 & C45 grades. Supplying pressure-grade and mechanical forged bars to India, GCC, Europe & Africa.