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ASTM B163 / B167 / B444

ASTM B163 / B167 / B444 Nickel Alloy Tubes – Inconel, Monel & Hastelloy Tubes Manufacturer in India

Inox Steel India is a leading manufacturer, stockist, and global exporter of Nickel Alloy Tubes conforming to ASTM B163, ASTM B167, and ASTM B444, covering high-performance alloys such as Inconel (625, 600, 601, 825), Monel (400, K500), and Hastelloy (C22, C276, B3).

With a strong supply footprint across GCC, Middle East, Africa, Europe, North America, and South America, we produce heat-resistant, corrosion-resistant nickel tubes engineered for the most demanding industrial environments.

Our manufacturing facility follows stringent metallurgical controls, ensuring every tube meets high pressure, high temperature, and highly corrosive service conditions required in chemical, petrochemical, power, oil & gas, marine, and pollution-control systems.

Backed by ISO 9001, PED, IBR & EN 10204 3.1 / 3.2 certifications, Inox Steel India remains a trusted name for critical-application nickel tubes worldwide.

Table of Contents

What Are Nickel Alloy Tubes & Why Are They Used in Critical Applications?

Nickel alloy tubes are precision-engineered tubular products manufactured from special high-nickel alloys designed to withstand extreme temperatures, corrosive chemicals, seawater, high pressure, oxidation, carburization, and pitting far beyond the capabilities of stainless steels.

Unlike conventional steel, nickel alloys maintain tensile strength, metallurgical stability, and surface integrity at elevated temperatures up to 1100 °C, making them essential for heat-intensive and chemically aggressive processes.

Where Nickel Tubes Excel

  • Extreme corrosion environments: acidic media, H₂SO₄, HCl, HNO₃, organic acid streams
  • High-temperature furnaces: oxidation, scaling, carburization defence
  • Marine & offshore: continuous seawater exposure, brine lines, pump systems
  • Heat exchanger & condenser tubes: thermal cycling and chloride attack prevention
  • Nuclear and aerospace systems: stability under radiation, temperature & mechanical load

These tubes are engineered for longevity in conditions where stainless steel, duplex steel, or carbon steel tubes cannot survive.

How Nickel Alloy Tubes Are Manufactured (Technical Process)

Inox Steel India manufactures Nickel Alloy Tubes using five controlled production routes depending on grade, application, and client requirement.

1. Extrusion of Solid Billets (Hot Piercing)

  • Billets heated to 1100–1180 °C
  • Hydraulic or rotary piercing to form hollow shell
  • Ideal for Inconel, Hastelloy & Monel tubes

2. Cold Drawing on Mandrel

  • High dimensional accuracy
  • Thin-wall precision tubes
  • Instrumentation & heat exchanger service

3. Pilgering (Cold Pilger Mill)

  • Excellent OD & wall thickness control
  • Petrochemical & nuclear-grade tubing

4. Welded Nickel Alloy Tubes

  • Precision strip welding
  • 100% X-ray & NDT
  • Used for selected Hastelloy & Inconel grades

5. Heat Treatment & Solution Annealing

  • Restores corrosion resistance
  • Ensures proper grain structure

Key Advantages of Nickel Alloy Tubes

  • Exceptional high-temperature strength up to 1100 °C
  • Outstanding resistance to sulphuric, hydrochloric & nitric acids
  • Superior seawater & chloride resistance
  • Zero failure under thermal shock
  • High resistance to stress-corrosion cracking
  • Suitable for high-purity & contamination-sensitive systems

Overview of Grades Covered — Inconel, Monel, Hastelloy

Inconel Alloys (600, 601, 625, 825)

  • High-temperature strength & oxidation resistance
  • Used in furnaces, power plants, aerospace & heat exchangers

Monel Alloys (400, K500)

  • Best for seawater, alkaline & brine environments
  • Used in marine pumps, desalination & offshore platforms

Hastelloy Alloys (C22, C276, B3)

  • Superior performance in strong acids
  • Used in chemical reactors & pollution control systems

Applications by Grade / Service Condition

Inconel Tubes

Application Temperature Industries
Reformers & crackers Up to 1100 °C Petrochemical
Heat exchangers -196 to 1000 °C Power, Marine
Furnace components Up to 1100 °C Metallurgy

Monel & Hastelloy Tubes

Alloy Service Media Industries
Monel 400 Seawater, brine Marine, Desalination
Monel K500 Offshore loads Oil & Gas
Hastelloy C22 / C276 Strong acids Chemical
Hastelloy B3 Reducing acids Fertilizer

Nickel Alloy Tube Size & Dimensional Range

  • OD Range: 6 mm – 273 mm
  • Wall Thickness: SCH 5S – SCH 160
  • Forms: Seamless & Welded
  • Length: Random, Cut-to-Length, U-Bent

Indicative Price Range — 2025

Alloy INR/kg USD/kg
Inconel 600 / 625 ₹2,850 – 3,800 $35 – $46
Incoloy 825 ₹1,950 – 2,600 $24 – $31
Monel 400 ₹1,250 – 1,800 $15 – $22
Hastelloy C276 ₹3,200 – 4,500 $38 – $55

Testing, Compliance & Export Readiness

  • Mechanical tests (tensile, yield, hardness)
  • Eddy current, UT & hydrostatic testing
  • PMI & microstructure analysis
  • NACE MR0175 / MR0103 compliance
  • PED & EN 10204 3.1 / 3.2 certification

Contact Inox Steel India – Nickel Alloy Tube Supplier Near Alankar Cinema, Mumbai

Monel 400 and Monel K500 offer the best resistance against seawater, brine, and alkaline media.

Inconel (especially 625, 600, 601) can withstand up to 1100 °C, making them ideal for furnace and petrochemical processing.

Yes — Hastelloy C22 and C276 are among the world’s most corrosion-resistant alloys, especially in acidic and chloride-rich environments.

Yes, we provide cut-to-length, U-bent tubes, tube bundles, and custom machining on request.

The HSN Code is 7507.12 / 7507.20 for tubes and 7508.20 for welded pipes.

Yes, we supply regularly to Dubai, Oman, Saudi Arabia, Germany, UK, USA, and Brazil.