DIPTI METAL INDUSTRIES
Dipti Metal Industries – Your Premier Worldwide ASTM B619 UNS N06022 (Hastelloy C-22) Exporter, Global ASTM B619 UNS N06022 Supplier, ASTM B619 UNS N06022 Dealers, ASTM B619 UNS N06022 Distributors, and Stockists of ASTM B619 UNS N06022 High-Quality Welded Nickel Alloy Pipes for Demanding Pollution Control, Chemical Processing, and Pharmaceutical Applications requiring exceptional resistance to both oxidizing and reducing acids, and superior localized corrosion resistance.
Dipti Metal Industries proudly stands as a globally recognized and leading ASTM B619 UNS N06022 (Hastelloy C-22) manufacturer, worldwide ASTM B619 UNS N06022 exporter, global ASTM B619 UNS N06022 supplier, ASTM B619 UNS N06022 Dealers, ASTM B619 UNS N06022 Distributors, and ASTM B619 UNS N06022 Stockists of high-quality Welded UNS N06022 (Hastelloy C-22) Nickel Alloy Pipes. UNS N06022, commonly known as Hastelloy C-22, is a versatile nickel-chromium-molybdenum-tungsten alloy specifically engineered for exceptional resistance to a wide range of aggressive chemical process environments, including both oxidizing and reducing media.
This premium nickel alloy material, specified under ASTM B619/B619M (Standard Specification for Welded Nickel and Nickel-Cobalt Alloy Pipe), is ideal for critical components in applications involving wet chlorine, hypochlorite, chlorine dioxide, formic acid, acetic acid, and various mixed acids. ASTM B619 UNS N06022 pipes are highly effective in pollution control systems (such as flue gas desulfurization - FGD), chemical processing, pharmaceutical production, and waste treatment facilities, where robust resistance to pitting, crevice corrosion, intergranular attack, and stress-corrosion cracking is paramount. Our unwavering commitment to stringent quality control ensures that each ASTM B619 UNS N06022 pipe meets the precise chemical composition and enhanced mechanical property requirements of ASTM B619/B619M, providing robust and durable solutions for diverse and critical corrosive projects worldwide.
Dipti Metal Industries supplies ASTM B619 UNS N06022 (Hastelloy C-22) pipes manufactured through advanced welding processes to meet specific project needs and performance criteria for critical corrosive service:
Description: Produced from flat-rolled alloy by an automatic welding process without the addition of filler metal, and then furnished either as-welded and solution annealed, or welded, sized, and solution annealed. This class provides excellent structural integrity and uniform properties for demanding corrosive and high-pressure environments.
Features: Offers inherent strength and toughness, consistent wall thickness, and enhanced resistance to internal pressure and corrosive attack. The precise control over the welding and annealing processes ensures high-quality and reliable performance in critical chemical applications.
Applications: Used in various sections of chemical reactors, heat exchangers, evaporators, and process piping in the chemical, pharmaceutical, and waste treatment industries where broad-spectrum corrosion resistance and structural integrity are paramount.
Description: Manufactured by forming an alloy steel strip into a cylindrical shape and then welding the edges longitudinally. Subsequent to welding and prior to final heat treatment, Class II pipes are cold worked either in both the weld and base metal or in the weld metal only, followed by solution annealing. This cold working step further refines the microstructure and enhances mechanical properties.
Features: Provides improved mechanical properties and a more refined grain structure due to the cold working process. This class offers enhanced performance for applications requiring superior strength and integrity, balancing performance with cost-effectiveness for a wide range of diameters and wall thicknesses.
Applications: General industrial piping in corrosive environments, pollution control systems, auxiliary lines in chemical plants, and various fluid conveyance systems where a good balance of cost, exceptional corrosion resistance, and structural integrity after welding and cold working is required.
Description: ASTM B619 UNS N06022 pipes are typically supplied in a solution annealed and descaled condition. Specialized surface finishes can be applied to meet specific functional requirements for critical corrosive service.
Features: While exceptional corrosion resistance is key, specific surface treatments can further enhance properties or meet application demands. Additional rigorous testing and inspections are paramount for ASTM B619 UNS N06022, including extensive non-destructive testing (ultrasonic, eddy current, radiography), detailed mechanical tests (tensile, impact, hardness), and microstructure analysis, to confirm its corrosion performance, metallurgical stability, and integrity for critical applications. Specific dimensional requirements and stringent quality control are applied at every stage.
Applications: Components requiring enhanced surface integrity for extended corrosive exposure, and systems demanding confirmation of material properties through comprehensive, highly specialized testing regimes for critical high-reliability applications in chemical processing, ensuring compliance with the strictest international industry standards for safety and performance.
Dipti Metal Industries ensures that all ASTM B619 UNS N06022 (Hastelloy C-22) welded nickel alloy pipes strictly conform to the chemical composition and enhanced mechanical property requirements of the ASTM B619/B619M standard, providing robust performance in critical chemical processing and industrial applications globally.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | remainder |
| Chromium (Cr) | 20.0 - 22.5 |
| Molybdenum (Mo) | 12.5 - 14.5 |
| Iron (Fe) | 2.0 - 6.0 |
| Tungsten (W) | 2.5 - 3.5 |
| Carbon (C) | 0.010 max |
| Silicon (Si) | 0.08 max |
| Manganese (Mn) | 0.50 max |
| Phosphorus (P) | 0.020 max |
| Sulfur (S) | 0.010 max |
| Vanadium (V) | 0.35 max |
| Cobalt (Co) | 2.5 max |
Note: Detailed specifications, including other elements and specific analysis requirements, are available in the full ASTM B619/B619M standard. All material test certificates (MTCs) conform to EN 10204 3.1/3.2.
| Property | Value |
|---|---|
| Tensile Strength | 690 MPa (100 ksi) |
| Yield Strength (0.2% Offset) | 310 MPa (45 ksi) |
| Elongation in 2 in. (50 mm) | 45% |
Note: Mechanical properties for ASTM B619 UNS N06022 are optimized for superior corrosion resistance and good elevated temperature strength. For exact values, refer to ASTM B619/B619M.
Dipti Metal Industries supplies ASTM B619 UNS N06022 (Hastelloy C-22) welded nickel alloy pipes in a full range of nominal pipe sizes (NPS) and schedules, ensuring compatibility with various standard piping and structural systems for critical corrosive applications. All products conform to precise dimensional tolerances as specified by ASTM B619/B619M and referenced standards.
For specific dimensional tables and detailed tolerance requirements, please refer to the latest editions of ASME B36.19M, ASME B36.10M, and ASTM B619/B619M standards.
Dipti Metal Industries' ASTM B619 UNS N06022 (Hastelloy C-22) Welded Nickel Alloy Pipes are widely trusted and utilized in a broad spectrum of critical industrial sectors and demanding corrosive applications, consistently providing reliable, exceptional broad-spectrum corrosion resistant, localized corrosion resistant, and high-strength fluid conveyance and ensuring paramount system integrity:
Dipti Metal Industries is a proud Worldwide Exporter and Global Supplier of ASTM B619 UNS N06022 (Hastelloy C-22) Nickel Alloy Pipes, with an extensive network of Dealers, Distributors, and Stockists. We ensure timely and compliant delivery to major industrial hubs across the globe.
Are you searching for dependable, high-performance ASTM B619 UNS N06022 (Hastelloy C-22) Welded Nickel Alloy Pipes for your critical pollution control, chemical processing, or pharmaceutical applications requiring exceptional resistance to both oxidizing and reducing media and superior localized corrosion resistance? Contact Dipti Metal Industries, your expert global nickel alloy pipe supplier, manufacturer, and exporter, today to discuss your specific requirements or to request a personalized, custom quote. Our knowledgeable and responsive team is dedicated to providing you with the most effective, safest, and most reliable UNS N06022 piping solutions that guarantee long-term operational excellence, enhanced system integrity, and unparalleled project success in demanding corrosive environments.
Price guidance (non-binding): USD 60.00–60000 per pipe depending on size, schedule/wall thickness, manufacturing type (Class I/Class II), finish, quantity, and delivery terms. Final prices are quotation-based.
ASTM B619 UNS N06022 (Hastelloy C-22) pipes are primarily used in highly corrosive chemical process environments, including those involving wet chlorine, hypochlorite, chlorine dioxide, and various oxidizing and reducing acids. Key applications include pollution control systems (such as flue gas desulfurization), chemical processing, pharmaceutical production, and waste treatment facilities where superior resistance to localized corrosion and stress-corrosion cracking is critical.
UNS N06022 (Hastelloy C-22) is a nickel-chromium-molybdenum-tungsten alloy with a balanced composition that provides outstanding resistance to both oxidizing and reducing corrosive media. Its high chromium content ensures resistance to oxidizing chemicals, while its high molybdenum and tungsten content provide excellent resistance to reducing environments. This combination, along with low carbon, gives it superior resistance to pitting, crevice corrosion, intergranular attack, and stress-corrosion cracking in a wide range of aggressive solutions.
Yes, ASTM B619 UNS N06022 offers excellent weldability. It can be readily welded using conventional welding processes, including GTAW, GMAW, and SMAW. Its low carbon content helps minimize carbide precipitation during welding, ensuring that weldments maintain the alloy's high level of corrosion resistance and mechanical properties in the as-welded condition. Matching filler metals (e.g., C-22 filler wire) are typically used, and post-weld solution annealing is generally not required for corrosion resistance.
UNS N06022 (Hastelloy C-22) is highly versatile across a wide temperature range, offering excellent corrosion resistance from ambient to elevated temperatures. While it maintains good mechanical properties at high temperatures, its primary advantage lies in its outstanding corrosion resistance in various aggressive chemical environments, including those at elevated temperatures, rather than extreme high-temperature strength like some other nickel alloys. Its maximum service temperature is often dictated by the specific corrosive environment rather than its metallurgical stability alone.
“Dipti Metal Industries has consistently supplied us with high-quality TP304 Stainless Steel Pipes and Tubes, meeting our stringent requirements for chemical processing applications. Their reliability and global export capabilities are excellent.”
— Syed Muhammed Ali, Buyer, CCED, Oman
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