Home > Seamless Tube > ASTM B163 / B167 / B444
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.
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.
These tubes are engineered for longevity in conditions where stainless steel, duplex steel, or carbon steel tubes cannot survive.
Inox Steel India manufactures Nickel Alloy Tubes using five controlled production routes depending on grade, application, and client requirement.
| 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 |
| 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 |
| 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 |
These are seamless and welded nickel alloy tubes designed for high-temperature and corrosive applications. ASTM B163 covers heat exchanger tubes, B167 covers high-temp service tubes, and B444 covers cold-worked Inconel tubes. 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. What are ASTM B163, B167, and B444 Nickel Alloy Tubes?
Which nickel alloy is best for seawater applications?
What is the temperature limit of Inconel tubes?
Are Hastelloy tubes corrosion resistant?
Do you supply nickel alloy tubes in custom lengths?
What is the HSN Code for nickel alloy tubes?
Do you export nickel alloy tubes to UAE, USA, and Europe?
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