In industries where safety, performance, and corrosion resistance are vital, Hastelloy C22 seamless pipes are a preferred choice. They offer unmatched strength, superior durability, and the ability to withstand extreme chemical and environmental conditions.
As a leading Hastelloy C22 seamless pipe manufacturer in India, we produce and supply high-quality Alloy C22 seamless pipes designed for critical industrial applications. Our products are known for their precision, durability, and adherence to international quality standards.
Understanding Hastelloy C22
Hastelloy C22, also known as Alloy C22 or UNS N06022, is a high-performance nickel-chromium-molybdenum alloy that offers exceptional resistance to a wide range of corrosive environments. It is particularly resistant to oxidizing and reducing conditions, which makes it ideal for chemical and marine applications.
The alloy’s unique chemical composition makes it stand out among other nickel alloys, ensuring long-lasting performance even in the most aggressive chemical conditions.
Chemical Composition of Hastelloy C22
| Element | Content (%) |
|---|---|
| Nickel (Ni) | Balance |
| Chromium (Cr) | 20–22.5 |
| Molybdenum (Mo) | 12.5–14.5 |
| Iron (Fe) | 2–6 |
| Tungsten (W) | 2.5–3.5 |
| Cobalt (Co) | 2.5 max |
| Carbon (C) | 0.015 max |
This precise balance of elements gives Hastelloy C22 exceptional corrosion resistance, strength, and toughness.
Key Features of Hastelloy C22 Seamless Pipes
Superior Corrosion Resistance
Withstand both oxidizing and reducing agents, including chlorine, acetic acid, formic acid, and ferric chlorides.High Strength and Toughness
Delivers excellent mechanical properties even under high temperature and pressure.Seamless Structure
Seamless manufacturing ensures leak-free operation, better fluid flow, and high pressure handling.Resistance to Crevice and Pitting Corrosion
Performs well in environments prone to localized corrosion, especially those containing chlorides.Excellent Fabrication and Weldability
Can be easily fabricated and welded using standard industrial methods without cracking or deformation.
Manufacturing Process of Hastelloy C22 Seamless Pipes
The manufacturing of Hastelloy C22 seamless pipes requires high precision, strict quality checks, and advanced technology to ensure durability and dimensional accuracy.
1. Material Selection
High-grade Hastelloy C22 billets are sourced and inspected for their chemical composition and mechanical integrity.
2. Piercing and Extrusion
Billets are heated and pierced to create a hollow tube, which is then extruded or rolled into the desired size and wall thickness.
3. Cold Drawing
This process improves the pipe’s surface finish, dimensional accuracy, and mechanical strength.
4. Heat Treatment
Pipes are annealed to remove internal stresses and enhance corrosion resistance and ductility.
5. Pickling and Surface Cleaning
Pipes are cleaned with acid solutions to remove scales, oxides, and surface impurities.
6. Testing and Inspection
Non-destructive testing (NDT) methods such as ultrasonic, eddy current, and hydrostatic tests ensure the pipe is defect-free.
7. Finishing and Marking
Pipes are polished, marked with heat numbers, grade, and size, then packed carefully for shipment.
Technical Specifications
| Standard | ASTM B622 / ASME SB622 |
|---|---|
| Grade | Hastelloy C22 (UNS N06022) |
| Type | Seamless / ERW / Fabricated |
| Size Range | 1/8” NB to 12” NB |
| Form | Round, Square, Hydraulic, Rectangular |
| Length | Single / Double Random, or Cut Length |
| Ends | Plain End, Beveled End, Threaded End |
Applications of Hastelloy C22 Seamless Pipes
Hastelloy C22 seamless pipes are used in a wide variety of industrial sectors due to their superior corrosion resistance, strength, and temperature tolerance.
1. Chemical Processing Industry
Used in chemical reactors, heat exchangers, scrubbers, and piping systems that handle strong acids and chlorides.
2. Marine Engineering
Ideal for shipbuilding, seawater systems, and offshore platforms where exposure to saline water is constant.
3. Oil and Gas Industry
Used in drilling, refining, and subsea operations due to their ability to withstand high pressure and corrosive environments.
4. Power Generation Plants
Performs reliably in heat exchangers, condensers, and pollution control systems operating under high temperatures.
5. Pharmaceutical and Food Processing
Preferred for applications where contamination-free and corrosion-resistant materials are required.
6. Pulp and Paper Industry
Used in bleaching equipment and digesters where aggressive chemicals are present.
Advantages of Hastelloy C22 Seamless Pipes
Long Service Life: Excellent durability reduces replacement and maintenance costs.
Leak-Free Flow: Seamless construction minimizes chances of leakage.
High Pressure & Temperature Capability: Performs efficiently in demanding industrial systems.
Low Maintenance: Resistant to corrosion, oxidation, and pitting, reducing operational downtime.
Versatile Applications: Suitable for both oxidizing and reducing environments.
Quality Assurance and Testing
As a reputed manufacturer, quality is at the core of our production process. Each Hastelloy C22 seamless pipe undergoes multiple inspections and tests before delivery.
Tests Conducted:
Hydrostatic Testing
Ultrasonic Test
Eddy Current Test
Positive Material Identification (PMI)
Intergranular Corrosion Test (IGC)
Hardness and Tensile Strength Test
Visual and Dimensional Inspection
We provide Mill Test Certificates (MTC) in accordance with EN 10204 3.1/3.2 standards to ensure complete traceability and quality compliance.
Packaging and Shipping
We take every precaution to ensure our products reach customers safely.
Packaging Methods Include:
Wooden Crates or Boxes
Plastic End Caps
Steel Strapped Bundles
Moisture-Proof Wrapping
All packages are properly labeled with product details, grade, heat number, and batch information for easy tracking and identification.
Why Choose Us as Your Hastelloy C22 Seamless Pipe Manufacturer
When it comes to quality and reliability, our company stands out among other Hastelloy C22 seamless pipe manufacturers in India.
1. Superior Quality Control
Every stage of production, from raw material selection to final testing, is monitored by experts.
2. Advanced Technology
We use state-of-the-art equipment for extrusion, heat treatment, and finishing processes.
3. Customization Options
Pipes can be customized in terms of size, wall thickness, and length to meet project requirements.
4. Competitive Pricing
We offer industry-leading prices while maintaining uncompromised quality.
5. On-Time Delivery
Efficient logistics and inventory management ensure timely delivery of every order.
6. Global Export Network
We export Hastelloy C22 seamless pipes to countries in the Middle East, Europe, Africa, and Southeast Asia.
Global Market Insight
The global demand for nickel-based alloys like Hastelloy C22 has been steadily increasing due to their reliability in extreme environments. Industries such as petrochemical, power, and marine engineering continue to prefer these materials for their unmatched performance.
India has become a major hub for Hastelloy C22 seamless pipe manufacturing, thanks to skilled engineering talent, cost-effective production, and adherence to international quality standards.
Maintenance and Performance Tips
To maximize the life and efficiency of your Hastelloy C22 seamless pipes:
Keep the surface clean and free from deposits.
Avoid exposure to mixed acids for extended durations.
Conduct periodic inspections to detect early signs of wear.
Store in a dry, covered area to prevent moisture contamination.
Proper care ensures decades of trouble-free performance and reliability.
Conclusion
Hastelloy C22 seamless pipes are the perfect combination of strength, corrosion resistance, and performance stability. They are essential for industries that demand high-quality materials capable of handling extreme environments and aggressive chemicals.
