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Product Overview
Hastelloy C22 (UNS N06022) Pipes, Sheets, Bars & Applications
MOKSH TUBES & FITTINGS LLP is a trusted supplier, exporter, importer, and stockist of Hastelloy C22 (Alloy C22 / UNS N06022) along with other nickel alloys such as Hastelloy C276 and Incoloy 825. We offer a complete range of products including Pipes & Tubes, Pipe Fittings, Flanges, Fasteners, Sheets & Plates, Coils, Wires, Round Bars, Flat Bars, Angles, Channels, Welding Rods, Wire Mesh, and other Custom Hastelloy solutions.
Unlike conventional stainless steels, Hastelloy alloys such as C22 and C276 are designed for highly corrosive and unpredictable environments. With excellent resistance to both oxidizing and reducing media, Hastelloy C22 provides superior protection against pitting, crevice corrosion, and stress corrosion cracking – even in aggressive chemical processes involving chlorides, wet chlorine gas, ferric and cupric salts, formic and acetic acids. Its unique chemistry and superior mechanical properties make it indispensable in chemical processing, marine, oil & gas, and other critical industries.
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Hastelloy C22 – Specifications (UNS N06022)
| Category | Details |
|---|---|
| Grade | Hastelloy C22 / Alloy 22 / UNS N06022 |
| Type | Nickel–Chromium–Molybdenum–Tungsten Alloy |
| Main Features | Extreme corrosion resistance, excellent resistance to pitting & crevice corrosion, superior weldability |
| Available Conditions | Annealed, Solution Annealed, Hot Rolled, Cold Worked |
| Testing Offered | Tensile, Hardness, Chemical Analysis, PMI, UT Testing |
| Certification | EN 10204 3.1 / 3.2 |
Chemical Composition of Hastelloy C22
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | Balance (~56%) |
| Chromium (Cr) | 22 |
| Molybdenum (Mo) | 13 |
| Iron (Fe) | 3 |
| Tungsten (W) | 3 |
| Cobalt (Co) | 2.5 max |
| Manganese (Mn) | 0.5 max |
| Vanadium (V) | 0.35 max |
| Silicon (Si) | 0.08 max |
| Carbon (C) | 0.01 max |
| Phosphorus (P) | 0.02 max |
| Sulfur (S) | 0.02 max |
Hastelloy C22 is engineered to withstand both oxidizing and reducing environments — a rare capability among corrosion-resistant alloys.
Physical Properties of Hastelloy C22
| Property | Value |
|---|---|
| Density | 8.69 g/cm³ |
| Melting Point | 1350 °C (2460 °F) |
| Tensile Strength | 790 MPa / 115,000 psi |
| Yield Strength (0.2%) | 355 MPa / 52,000 psi |
| Elongation | 45% |
Heat Treatment of Hastelloy C22
| Process | Temperature | Cooling Method |
|---|---|---|
| Solution Annealing | 1120 – 1175 °C | Rapid water quench |
| Stress Relieving | 870 – 900 °C | Air cool |
| Hot Working | 950 – 1175 °C | Water quench or rapid cooling |
| Cold Working | — | Requires periodic annealing |
⚠ Prolonged exposure between 650–900 °C should be avoided due to precipitation risk.
Mechanical Properties of Hastelloy C22
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 690 – 790 MPa | 100,000 – 115,000 psi |
| Yield Strength (0.2%) | 379 MPa | 55,000 psi |
| Elongation | 45% | 45% |
| Hardness | 89 – 100 HRB | 89 – 100 HRB |
Equivalent Grades & Standards
| Standard | Grade |
|---|---|
| UNS | N06022 |
| W.Nr | 2.4602 |
| ASTM | B575, B622, B619, B626 |
| ASME | SB575, SB622, SB619 |
| EN | NiCr22Mo14W |
Products in Hastelloy C22
MOKSH TUBES & FITTINGS LLP, with years of expertise in nickel-based alloys and an extensive global supply network,offers a complete range HASTELLOY products. These products are engineered to perform in the most corrosive environments found across industries such as Chemical Processing, Pollution Control, Oil & Gas, Marine, Power Generation, Wastewater Treatment, and more. The unique chemical composition of C22 makes it capable of resisting a wide variety of complex and mixed chemical conditions, delivering unmatched durability and reliability for mission-critical applications.
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Seamless Pipes
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Welded Pipes (ERW & EFW)
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Tubes (Capillary, U-Bend)
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Sheets & Plates
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Coils & Strips
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Round Bars, Flat Bars, Hex Bars, Square Bars
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Pipe Fittings (Elbows, Tees, Reducers, Caps, Stub Ends)
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Flanges (Weld Neck, Slip-On, Blind, Socket Weld, Threaded)
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Fasteners (Bolts, Nuts, Screws, Washers, Studs)
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Custom Fabricated Components
We offer Hastelloy C22 in a wide range of product forms, including:
Uses and Advantages
Exceptional corrosion resistance in both oxidizing and reducing environments
High resistance to pitting, crevice corrosion, and stress corrosion cracking
Excellent mechanical properties under chemical and thermal stress
Superior weldability and fabrication capability
Suitable for extremely aggressive and mixed chemical environments
Applications of Hastelloy C22 (UNS N06022)
HASTELLOY C-22 is extensively utilized across industries that demand superior corrosion resistance and long-term mechanical performance in highly aggressive and unpredictable chemical processes. Its multi-purpose capabilities make it an excellent choice for a wide range of critical applications:
Chemical Processing Industry
reactors, heat exchangers, scrubbers, storage vessels, piping systems
Pollution Control / FGD Systems
ducts, dampers, scrubbers, stack liners.
Oil & Gas Sector
sour gas service, subsea equipment, wellhead components, manifolds, separators.
Marine & Offshore Applications
seawater systems, offshore platforms, marine exhausts.
Pulp and Paper Industry
bleach plants, digesters, chlorine dioxide generators.
Power Generation and Nuclear Plants
condensers, pressure vessels, heat exchangers.
Pharmaceutical & Food Processing
hygienic piping, vessels, systems with strict quality standards.
Wastewater Treatment and Environmental Systems
tanks, filters, piping exposed to corrosive effluents.
HASTELLOY C-22's exceptional versatility, combined with its outstanding resistance to multiple types of corrosion, makes it the material of choice for industries where failure is simply not an option.
Hastelloy C22 Price in India
Typical Range: ₹2,500 – ₹5,000 per kg
(Price varies by OD, wall thickness, form, and finish)
Contact us for exact quotation based on size and quantity.
FAQ's
What is Hastelloy C22 and why is it unique?
Hastelloy C22 (Alloy C22 / UNS N06022) is a nickel-chromium-molybdenum-tungsten alloy with unmatched resistance to mixed chemical environments. Its composition makes it superior to many other Hastelloy grades.
What is the Hastelloy C22 price per kg?
Prices vary depending on product form (pipes, sheets, bars) and order size. Contact us for the latest Hastelloy C22 price in India.
Hastelloy C22 vs C276 – which one should I choose?
C22 offers better resistance to oxidizing agents, while C276 is widely available and more cost-effective. Choice depends on application.
Is Hastelloy better than stainless steel 316L?
Yes, for highly aggressive chemical environments, Hastelloy alloys outperform 316L stainless steel in corrosion resistance.
Who are the leading Hastelloy C22 suppliers?
Moksh Tubes & Fittings LLP is a leading Hastelloy C22 supplier, stockist, and exporter with a strong global presence.
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Contact Us
For inquiries, technical assistance, or quotations, contact Moksh Tubes & Fittings LLP – your global supplier for Hastelloy C22 and Hastelloy C276 products. Reach us at info@mokshfittings.com or call us at +91 97695 84950.
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