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Nickel Alloy Round Bars

Inox Steel India is a trusted manufacturer, supplier, and exporter of Nickel Alloy Round Bars in high-performance grades Inconel 625, Monel 400, and Hastelloy C276, supplied in compliance with ASTM B446, ASTM B164, and ASTM B574 standards.

Our nickel alloy round bars are engineered for extreme corrosion resistance, high temperature strength, and reliability in aggressive chemical and marine environments, serving industries across India and international markets including GCC, Middle East, Africa, Europe, and the Americas.

With ready stock in hot rolled, forged, bright drawn, and peeled & polished conditions, Inox Steel India supports critical projects, OEM manufacturing, and export supply chains where material failure is not an option.

Table of Contents

What Are Nickel Alloy Round Bars & How Are They Manufactured?

Nickel alloy round bars are solid cylindrical bars manufactured from alloys where nickel is the primary alloying element, often combined with chromium, molybdenum, copper, or niobium. Unlike stainless steel, nickel alloys retain mechanical strength and corrosion resistance simultaneously, even in highly acidic, chloride-rich, or oxidizing environments.

At Inox Steel India, nickel alloy round bars are manufactured using controlled metallurgical processes to ensure high purity and consistent performance.

Manufacturing Process Overview

  1. High-Purity Alloy Billet Selection: Billets are selected based on strict chemical composition requirements for Inconel, Monel, and Hastelloy grades.
  2. Hot Rolling / Forging: Billets are hot rolled or forged into round bar form to refine grain structure and improve mechanical integrity.
  3. Solution Annealing / Annealing: Heat treatment is performed to optimize corrosion resistance, ductility, and mechanical properties.
  4. Surface Finishing: Bars are supplied in black, bright drawn, or peeled & polished finish, depending on needs.
  5. Straightening & Cutting: Bars are straightened and supplied in random or customer-specified cut lengths.
  6. Inspection & Testing: Each batch undergoes chemical analysis, mechanical testing, PMI, and ultrasonic inspection.

This controlled manufacturing ensures bars capable of long-term service in the most demanding operating conditions.

Key Advantages of Nickel Alloy Round Bars from Inox Steel India

  • Exceptional resistance to corrosion, pitting, and crevice attack
  • High strength maintained at elevated temperatures
  • Excellent performance in acidic and chloride environments
  • Superior fatigue and stress corrosion cracking resistance
  • Suitable for offshore, chemical, and aerospace applications
  • Long service life with minimal maintenance

These properties make nickel alloy round bars indispensable for critical equipment and corrosion-intensive processes.

Grades & Standards Available

Inox Steel India supplies nickel alloy round bars in the following grades:

  • Inconel 625 (UNS N06625) – High strength and oxidation resistance for offshore and high-temperature service
  • Monel 400 (UNS N04400) – Excellent resistance to seawater, hydrofluoric acid, and marine environments
  • Hastelloy C276 (UNS N10276) – Outstanding resistance to pitting, crevice corrosion, and chemical attack

Applicable Standards: ASTM B446 / ASTM B164 / ASTM B574

MASTER TECHNICAL DATA SHEET – NICKEL ALLOY ROUND BARS

Parameter Inconel 625 (UNS N06625) Monel 400 (UNS N04400) Hastelloy C276 (UNS N10276)
Product Form Solid Round Bar Solid Round Bar Solid Round Bar
Material Category Nickel-Chromium-Molybdenum Alloy Nickel-Copper Alloy Nickel-Chromium-Molybdenum Alloy
Standard ASTM B446 / ASME SB446 ASTM B164 / ASME SB164 ASTM B574 / ASME SB574
EN / DIN Equivalent 2.4856 2.4360 / 2.4361 2.4819
Manufacturing Process Hot Rolled / Forged / Bright Drawn Hot Rolled / Forged / Bright Drawn Hot Rolled / Forged / Bright Drawn
Diameter Range (mm) 6 – 300 mm 6 – 350 mm 6 – 250 mm
Standard Sizes (mm) 8, 10, 12, 16, 20, 25, 32, 40, 50, 65, 80, 100 Same as Inconel Same as Inconel
Length Random / Fixed / Cut-to-Length Random / Fixed / Cut-to-Length Random / Fixed / Cut-to-Length
Surface Finish Black / Bright / Peeled & Polished Black / Bright / Peeled & Polished Black / Bright / Peeled & Polished
Density (g/cm³) ~8.44 ~8.80 ~8.89
Chemical Composition (Typical %) Ni ≥58, Cr 20–23, Mo 8–10, Nb+Ta 3.15–4.15 Ni 63–70, Cu 28–34 Ni ~57, Cr 14.5–16.5, Mo 15–17, W 3–4.5
Tensile Strength (MPa) ≥ 827 ≥ 550 ≥ 790
Yield Strength (MPa) ≥ 414 ≥ 240 ≥ 355
Elongation (%) ≥ 30 ≥ 35 ≥ 40
Hardness ≤ 220 HB ≤ 185 HB ≤ 230 HB
Corrosion Resistance Excellent in seawater, acids & chlorides Excellent in hydrofluoric & marine media Exceptional resistance to pitting, crevice & SCC
Temperature Resistance Up to ~980°C Up to ~480°C Up to ~1040°C
Heat Treatment Solution Annealed Annealed Solution Annealed
Typical Applications Offshore, heat exchangers, aerospace, marine Marine fittings, pumps, valves Chemical reactors, scrubbers, high-corrosion plants
Testing Chemical, Mechanical, UT, PMI Chemical, Mechanical, UT, PMI Chemical, Mechanical, UT, PMI
Certification EN 10204 3.1 / 3.2 EN 10204 3.1 / 3.2 EN 10204 3.1 / 3.2
HSN / HS Code 7505 7505 7505
Export Suitability Export – Critical Service Export Export – Severe Corrosion Service

Key Factors to Consider When Selecting Nickel Alloy Round Bars

When selecting nickel alloy round bars, the following parameters are critical:

Type of Corrosive Environment:
Hastelloy C276 is preferred for highly aggressive chemical service involving reducing or oxidizing media.
Temperature Requirement:
Inconel 625 performs reliably at elevated temperatures and under cyclic thermal conditions.
Marine or Seawater Exposure:
Monel 400 offers excellent resistance to seawater and marine corrosion across various flow rates.
Mechanical Load & Fatigue:
Nickel alloys maintain superior strength and fatigue resistance under sustained load and cyclic stress.
Compliance & Certification:
ASTM compliance and EN 10204 certification ensure traceability and acceptance in high-spec industries.

Global & Indian Demand Overview

India:
High demand from chemical processing plants, fertilizer units, offshore fabricators, and heat exchanger manufacturers.
GCC & Middle East:
Extensively used in offshore platforms, desalination plants, and oil & gas processing equipment.
Europe & Americas: Preferred for chemical reactors, aerospace components, and high-integrity industrial systems.

Inox Steel India maintains stock readiness and export documentation to support fast dispatch for global supply chains.

Applications of Nickel Alloy Round Bars

Nickel alloy round bars supplied by Inox Steel India are specifically chosen where conventional stainless steels fail.

Industry / Sector Typical Applications Preferred Grades
Chemical Processing Reactor shafts, agitators, scrubbers Hastelloy C276
Offshore & Marine Shafts, fasteners, seawater components Inconel 625, Monel 400
Oil & Gas Valve components, connectors Inconel 625
Power & Energy Heat exchangers, high-temp components Inconel 625
Marine Engineering Pumps, propellers, fittings Monel 400

These applications demand exceptional resistance to corrosion, which nickel alloys consistently provide.

Nickel Alloy Round Bar Size Range & Standard Dimensions

Inox Steel India supplies nickel alloy round bars in a comprehensive size range suitable for precision machining and critical service applications.

Standard Diameter Range (mm)
6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 32 mm, 40 mm, 50 mm, 65 mm, 80 mm, 100 mm and above up to 350 mm

Length Options

  • Random Lengths
  • Fixed Lengths
  • Custom Cut-to-Length (as per drawing or requirement)

Finish Options

  • Hot Rolled (Black)
  • Bright Drawn
  • Peeled & Polished

Bright and peeled bars are preferred for precision-machined parts and rotating equipment.

Nickel Alloy Round Bar Weight Calculation

The standard formula used for estimating round bar weight:
Weight (kg/m) = (D² × 0.006165)
Where D = Diameter in mm

This formula is commonly used for material estimation and logistics planning.

Nickel Alloy Round Bar Price – Indicative Range

Grade Approx. Price INR/kg Typical Use
Monel 400 ₹ 2,200 – ₹ 3,200 Marine & seawater service
Inconel 625 ₹ 3,500 – ₹ 5,200 Offshore & high-temp service
Hastelloy C276 ₹ 4,200 – ₹ 6,500 Severe chemical environments

Prices are indicative and subject to change based on nickel prices, alloy surcharge, and size.

HSN / HS Code for Nickel Alloy Round Bars

  • HSN Code: 7505
    Applicable for nickel alloy bars and rods under trade classification.

Testing & Quality Assurance

Every nickel alloy round bar supplied by Inox Steel India undergoes rigorous inspection and testing to ensure reliability in high-risk environments.

Quality Tests Conducted

  • Chemical Composition Analysis
  • Mechanical Testing (Tensile, Yield, Elongation)
  • Ultrasonic Testing (UT)
  • PMI (Positive Material Identification)
  • Dimensional & Surface Inspection

Documentation Supplied

  • EN 10204 3.1 / 3.2 Mill Test Certificate
  • Heat Number Traceability
  • Third-Party Inspection (SGS / BV / TUV) on request

Why Choose Inox Steel India for Nickel Alloy Round Bars

Inox Steel India is a dependable nickel alloy round bar manufacturer and supplier in India, supplying high-performance nickel alloys for critical applications where plant uptime is critical.

Our Key Strengths

  1. Ready stock of Inconel, Monel & Hastelloy round bars
  2. Supplied as per ASTM B446 / B164 / B574
  3. Availability in hot rolled, bright drawn, and peeled & polished finishes
  4. Custom cut lengths for precision machining
  5. Complete EN 10204 3.1 / 3.2 certification with full heat traceability
  6. Export-ready packaging and documentation

Our focus is on correct alloy selection, long service life, and zero-failure performance.

Industries & Applications We Serve

Industry Application Preferred Grade / Standard
Oil & Gas Refineries Heat Exchangers · Process Lines · Condensers SS 316 / 316L
Pharmaceutical & Biotech Sterile Lines · Reactors · Piping Loops SS 304L / 316L
Power & Energy Boiler Tubes · Superheaters · Steam Condensers SS 310 / 321
Food & Beverage Dairy Pipelines · Sugar Processing SS 304 / 304L
Marine & Desalination Sea Water Lines · Offshore Risers SS 316L
Chemical & Petrochemical Corrosive Process Lines · Reactors SS 316 / 347

Each project demands precision — we match the grade, schedule, and coating exactly to service conditions.

Export Readiness & Packaging

All pipes are export-packed as per international shipping standards:

  • Bundled with steel straps and HDPE wraps for corrosion protection
  • Plastic end caps to prevent burrs and edge damage
  • Marking includes Grade · Size · Heat No · Country of Origin · Batch No
  • Seaworthy wooden cases for overseas containers

Regular Export Destinations: UAE · Oman · Qatar · Kuwait · Saudi Arabia · Nigeria · South Africa · Germany · Italy · UK · USA · Brazil · Mexico.

Nickel Alloy Round Bar Supplier Near Alankar Cinema, Mumbai: If you are searching for a supplier in this region, Inox Steel India offers immediate availability, certified nickel alloy material, and fast delivery across major industrial regions.

Get a Quick Quote

Nickel Alloy Round Bars Manufacturer & Supplier – Inconel 625, Monel 400, Hastelloy C276,  Inox Steel India

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)

No. While stainless steel contains nickel, nickel alloys have much higher nickel content, providing enhanced performance in extreme environments.

Nickel alloy round bar prices typically range from ₹2,200 to ₹6,500 per kg, depending on grade and size.

Hastelloy C276 is preferred for highly corrosive chemical environments.

Yes, we supply peeled & polished nickel alloy round bars for precision and rotating applications.

Inox Steel India is a leading nickel alloy round bar manufacturer and supplier in India. Inconel 625, Monel 400 & Hastelloy C276 round bars as per ASTM standards with export supply.