Home > Seamless Pipe > Nickel Alloy Seamless Pipe
(Inconel 600, Inconel 625, Monel 400, Hastelloy C22 – ASTM B167 / B444)
Inox Steel India is a trusted manufacturer, stockist, and global exporter of high-performance Nickel Alloy Seamless Pipes, delivering premium corrosion-resistant piping solutions to the GCC, Middle East, African Nations, Europe, USA, Canada, Brazil & South America.
We specialize in Inconel 600 / 625, Monel 400, and Hastelloy C22 – the three most demanded nickel-based alloys in offshore, chemical, marine, and high-purity processing industries.
Nickel alloys are engineered for extreme corrosion environments, such as chloride-rich seawater, highly acidic process streams, oxidizing/reducing chemical media, and high-temperature furnace lines.
Our supply is fully compliant with ASTM B167, B444, B622, B619, ASME Boiler & Pressure Vessel Code, and global client specifications.
Our customers choose Inox Steel India for material integrity, fast delivery, documentation accuracy, and consistent quality across every heat, batch, and shipment.
A Nickel Alloy Seamless Pipe is a high-performance pipe made from nickel-based alloys reinforced with chromium, molybdenum, iron, tungsten, niobium, or copper (depending on the grade).
Nickel alloys provide unmatched performance in:
Because these pipes are seamless, they offer exceptional resistance to:
Nickel alloy pipes are used where ordinary stainless or carbon steel cannot survive.
Nickel alloys require advanced metallurgy and controlled manufacturing:
Inconel 600 (UNS N06600)
Inconel 625 (UNS N06625)
Monel 400 (UNS N04400)
Hastelloy C22 (UNS N06022)
Each grade is engineered for a specific corrosion and temperature profile.
✔ Ultra-high corrosion resistance
✔ Superior resistance to pitting & crevice corrosion
✔ The best material for chloride, seawater & acidic environments
✔ High mechanical strength at extreme temperatures
✔ Ideal for offshore / subsea environments
✔ Exceptional fabricability and weldability
✔ Mandatory for high-purity systems
Nickel alloys offer lifetime performance where stainless steels fail.
Below is our consolidated performance table across Inconel 600 / 625, Monel 400, and Hastelloy C22, covering mechanical properties, chemistry, temperature limits, corrosion profiles & application mapping.
ASTM B167 / B444 – Seamless Nickel & Nickel Alloy Pipe / Tube
| Parameter / Property | Inconel 600 | Inconel 625 | Monel 400 | Hastelloy C22 |
|---|---|---|---|---|
| UNS Number | N06600 | N06625 | N04400 | N06022 |
| Standard / Specification | ASTM B167 / ASME SB167 | ASTM B444 / B704 / B705 | ASTM B165 / ASME SB165 | ASTM B622 / B619 (pipe & tube) |
| Material Type | Ni-Cr-Fe Alloy | Ni-Cr-Mo-Nb Alloy | Ni-Cu Alloy | Ni-Cr-Mo-W Alloy |
| Nickel Content (Approx.) | ≥ 72% | ≥ 58% | ≥ 63% | Balance (Ni) |
| Key Alloying Elements | Cr 14–17%, Fe 6–10% | Cr 20–23%, Mo 8–10%, Nb+Ta 3.15–4.15% | Cu 28–34%, Fe ≤ 2.5% | Cr 20–22.5%, Mo 12.5–14.5%, W 2.5–3.5%, Fe 2–6% |
| Corrosion Resistance | Good in high-temp & oxidizing environments, chloride SCC resistant | Excellent pitting, crevice & SCC resistance in chlorides & seawater | Excellent in neutral & alkaline media, good in seawater | Outstanding resistance to oxidizing & reducing acids (HCl, HNO₃, H₂SO₄, mixed media) |
| Typical Use Temperature Range | −196 °C to ~1100 °C | −196 °C to ~980 °C | −196 °C to ~550 °C | −196 °C to ~400–450 °C (corrosive media) |
| Minimum Tensile Strength (MPa) | ~550 MPa | ~830 MPa | ~480 MPa | ~690 MPa |
| Minimum Yield Strength (MPa) | ~240 MPa | ~414 MPa | ~170–195 MPa | ~310 MPa |
| Elongation (%) | ≥ 30 | ≥ 30 | ≥ 35 | ≥ 45 (typ., depends on product form) |
| Strength Level | Medium | High | Medium | High |
| Key Properties | High-temp strength, oxidation resistance, SCC resistance in chloride-ion environments | High strength + exceptional corrosion in seawater, acids, and high temp; non-magnetic | Toughness, seawater resistance, good mechanical properties at sub-zero temps | Top-tier corrosion resistance in oxidizing/reducing environments, resists pitting, crevice, and SCC |
| Typical Applications | Furnace components, heat treat fixtures, chemical processing, nuclear engineering | Offshore, seawater lines, subsea equipment, chemical plants, flue gas desulfurization | Seawater piping, shipbuilding, pumps & valves, oil & gas handling | Chemical reactors, scrubbers, FGD systems, acid production, pharmaceutical & high-purity chemical lines |
| Available Forms (for your scope) | Seamless pipe & tube | Seamless pipe & tube | Seamless pipe & tube | Seamless pipe & tube |
| Typical Size Range (OD) | 6 mm – 219 mm | 6 mm – 168 mm | 6 mm – 219 mm | 6 mm – 168 mm (common for pipes) |
| Schedules (Thickness) | SCH 5 – SCH XXS (on request) | SCH 5 – SCH XXS | SCH 5 – SCH 80 | SCH 5 – SCH 80 (heavier on project basis) |
| Manufacturing Method | Seamless (extruded / cold-drawn) | Seamless (cold-drawn / cold-worked & aged) | Seamless (extruded / drawn) | Seamless (cold-drawn) |
| End Finish | Plain / Bevelled | Plain / Bevelled | Plain / Bevelled | Plain / Bevelled |
| Heat Treatment | Solution Annealed | Solution Annealed / Age Hardened (when specified) | Annealed | Solution Annealed |
| Typical Industries | Heat Treat, Petrochemical, Power, Nuclear | Offshore Oil & Gas, Marine, Chemical Processing, Aerospace | Marine, Shipbuilding, Oil & Gas, Pump & Valve Manufacturers | Chemical Processing, Pharma, Pollution Control, High-purity Systems |
| HSN / HS Code (India) | 7507.12 / 7507.20 (Nickel tubes & pipes, alloyed) | 7507.12 / 7507.20 | 7507.12 / 7507.20 | 7507.12 / 7507.20 |
| Documentation / Certification | MTC EN 10204 3.1/3.2, NACE (if applicable), PED | Same | Same | Same |
Note: Mechanical values & ranges are typical and may vary slightly by size, condition & specific norm; your MTC will carry exact test values.
The table covers chemical composition, mechanical strength, heat treatment, temperature limits, hardness, creep strength, testing requirements, and dimensional availability — allowing engineers and procurement teams to select the correct grade for boilers, steam lines, and high-temperature service projects.
Corrosion type:
Pitting, SCC, oxidizing vs. reducing media
Operating temperature:
Cryogenic to 1100 °C
Fluid purity:
Pharma / high-purity lines need C22
Exposure environment:
Seawater = Monel 400
Mechanical load & cycle fatigue
Project specification:
ADNOC, ARAMCO, SABIC, Exxon, Chevron, BP, Shell
India:
GCC & Middle East:
Africa:
Europe & Americas:
Inox Steel India ensures fast export dispatch from JNPT, Mundra & Hazira.
Nickel Alloy Seamless Pipes are engineered for extreme corrosion environments, high temperatures, and high mechanical loads in chemical plants, marine systems, desalination units, pharmaceuticals, offshore platforms, and high-purity process lines.
Each alloy—Inconel 600, Inconel 625, Monel 400, Hastelloy C22—serves a specific corrosion + temperature profile that cannot be replaced by stainless or carbon steel.
Inconel 600 – High Temperature & Oxidation Resistant (UNS N06600)
Service Temperature: −196 °C to 1100 °C
Applications:
Why 600?
Inconel 625 – Offshore, Marine & Chemical Resistant (UNS N06625)
Service Temperature: −196 °C to 980 °C
Applications:
Why 625?
Monel 400 – Seawater & Marine Alloy (UNS N04400)
Service Temperature: −196 °C to 550 °C
Applications:
Why 400?
Hastelloy C22 – Severe Corrosion Alloy (UNS N06022)
Service Temperature: −196 °C to ~450 °C
Applications:
Why C22?
| NPS (Inch) | OD (mm) | Wall Thickness (SCH 40) | Weight (kg/m) |
| ½″ | 21.3 | 2.77 | 1.27 |
| 1″ | 33.4 | 3.38 | 2.48 |
| 2″ | 60.3 | 3.91 | 5.44 |
| 3″ | 88.9 | 5.49 | 10.63 |
| 4″ | 114.3 | 6.02 | 14.90 |
| 6″ | 168.3 | 7.11 | 28.26 |
Prices vary based on grade, OD, wall thickness, heat treatment, and project requirement.
| Nickel Alloy Grade | UNS | INR/kg (FOB Mumbai) | USD/kg (FOB India) | Common Application |
|---|---|---|---|---|
| Inconel 600 | N06600 | ₹ 2,200 – ₹ 3,000 | $ 26.50 – $ 35.00 | High-Temp Furnaces, Chemical Plants |
| Inconel 625 | N06625 | ₹ 3,000 – ₹ 3,900 | $ 36.00 – $ 48.00 | Offshore, Marine, Chemical Reactors |
| Monel 400 | N04400 | ₹ 1,900 – ₹ 2,700 | $ 23.50 – $ 32.50 | Seawater Systems, Oil & Gas |
| Hastelloy C22 | N06022 | ₹ 3,900 – ₹ 5,200 | $ 48.00 – $ 63.00 | Acid Processing, Pharmaceutical, FGD |
✔ 7507.12 / 7507.20
(“Nickel alloy tubes & pipes – seamless, cold drawn, straight”)
Every Nickel Alloy Seamless Pipe supplied by Inox Steel India undergoes specialized testing due to the critical end-use environment.
Every heat and batch is fully traceable.
If you’re searching for a “Nickel Alloy Seamless Pipe supplier near Alankar Cinema, Mumbai”, Inox Steel India is one of India’s most trusted manufacturers and exporters of Inconel 600, Inconel 625, Monel 400, and Hastelloy C22 seamless pipes.
We supply premium nickel alloy pipes to more than 65+ countries, including the UAE, Saudi Arabia, Oman, Qatar, Kuwait, South Africa, Egypt, Nigeria, Germany, Italy, USA, Canada, Brazil, and Mexico.
With ready stock in ASTM B167, B444, B622, B619, our inventory supports chemical plants, marine systems, offshore platforms, desalination units, high-purity plants, FGD systems, and nuclear applications.
We dispatch quickly from Mumbai with full documentation, MTC, EN 10204 certification & export packing.
Your Trusted Source for Chrome-Moly Alloy Steel Seamless Pipes
| Industry | Applications | Preferred Alloys |
|---|---|---|
| Offshore & Subsea | Riser Lines • Umbilicals • Flowlines | Inconel 625 / Monel 400 |
| Chemical & Acid Processing | Reactors • High Corrosion Lines | Hastelloy C22 |
| Marine & Shipbuilding | Seawater Lines • Pumps • Valves | Monel 400 |
| Desalination Plants | Brine Lines • Evaporators | Inconel 625 / Monel 400 |
| Power & Nuclear | High Temp Components | Inconel 600 |
| Pharma & High-Purity | Ultra-Pure Process Lines | Hastelloy C22 |
| Oil & Gas | Sour Gas • Corrosive Fluids | Inconel 625 / Monel 400 |
We supply Nickel Alloy Seamless Pipes with export-grade packing:
Primary Export Destinations
UAE · Oman · Saudi Arabia · Kuwait · Qatar · Egypt · Nigeria · Kenya · South Africa
Germany · Italy · UK · USA · Canada · Mexico · Brazil · Chile
Your cargo is shipped safely via JNPT, Mundra, Hazira.
Our technical sales team responds within 24 hours with grade recommendation, price and lead time.
Whether you need Inconel 600 for high temperatures, Inconel 625 for seawater, Monel 400 for marine lines, or Hastelloy C22 for severe corrosion, Inox Steel India supplies certified, export-ready Nickel Alloy Seamless Pipes worldwide.
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
alloy@inoxsteelindia.in
+91 9930796690
Monel 400 is the preferred alloy for marine & seawater applications.
Hastelloy C22 offers unmatched corrosion resistance to acids.
Yes — complete range in Inconel 600/625, Monel 400, and Hastelloy C22.
7507.12 / 7507.20 for seamless nickel / nickel alloy pipes.
Indicative prices (FOB India):
Yes — PMI, TPI (SGS/TUV/Lloyds/DNV), Hydro, Eddy Current & more.
Whether you need Inconel 600 for high temperatures, Inconel 625 for seawater, Monel 400 for marine lines, or Hastelloy C22 for severe corrosion, Inox Steel India supplies certified, export-ready Nickel Alloy Seamless Pipes worldwide.
ISO Certified • PED & CE Approved • MTC 3.1/3.2 • Trusted in 65+ Countries