Hastelloy alloys are high-performance nickel-based materials specifically designed for extreme corrosion environments.
They are widely used in chemical processing, oil & gas, and pollution control systems where resistance to aggressive acids and chlorides is critical.
What is Hastelloy?
Hastelloy is a family of nickel-molybdenum and nickel-chromium-molybdenum alloys known for:
- Exceptional corrosion resistance
- Stability in both oxidizing and reducing environments
- Resistance to pitting and crevice corrosion
- Reliable performance in harsh chemical conditions
Hastelloy Grades Overview
| Grade | Key Feature | Typical Applications |
|---|---|---|
| Hastelloy C-22 | Excellent overall corrosion resistance | Chemical processing |
| Hastelloy C-276 | Strong resistance to acids and chlorides | Offshore, chemical plants |
| Hastelloy C-4 | High stability at elevated temperatures | Chemical reactors |
| Hastelloy B-2 | Outstanding resistance to reducing acids | Acid systems |
| Hastelloy B-3 | Improved thermal stability vs B-2 | Advanced chemical environments |
Corrosion Resistance Performance
Hastelloy alloys are specifically engineered for aggressive chemical environments:
- Excellent resistance to hydrochloric acid (HCl)
- Strong performance in sulfuric acid (H₂SO₄)
- Resistant to chloride-induced pitting and crevice corrosion
- Suitable for both oxidizing and reducing conditions
- Maintains integrity in wet and high-temperature corrosive environments
These characteristics make Hastelloy alloys ideal for critical applications where material failure is not acceptable.
Typical Applications
Hastelloy alloys are widely used in:
- Chemical Processing – reactors, acid systems, storage tanks
- Oil & Gas – corrosion-intensive environments
- Flue Gas Desulfurization (FGD) – pollution control systems
- Pharmaceutical Industry – high-purity processing equipment
- Heat Exchangers – corrosive fluid systems
Available Product Forms
Uprime Metal supplies Hastelloy alloys in a wide range of forms:
- Plates & Sheets
- Pipes & Tubes (seamless & welded)
- Bars (round, flat, hex)
- Forgings
- Precision-machined parts
Custom sizes and processing services are available based on project requirements.
Standards & Certifications
- ASTM B575 (Plate, Sheet, Strip)
- ASTM B619 / B622 (Pipe & Tube)
- ASTM B574 (Bars)
All materials can be supplied with:
- EN 10204 3.1 Mill Test Certificate (MTC)
- PMI testing before shipment
- Third-party inspection (SGS / BV / TUV)
Why Choose Uprime Metal
Uprime Metal provides reliable Hastelloy supply solutions with strict quality control:
- Stable mill sourcing and verified suppliers
- Prime-grade raw materials (no recycled substitution)
- Full traceability and certification
- Flexible MOQ for trial and bulk orders
- Fast delivery for stock materials
- Integrated processing services (cutting, machining, finishing)
FAQ – Frequently Asked Questions
What is the difference between Hastelloy C-22 and C-276?
C-22 offers better resistance to oxidizing environments, while C-276 is more widely used for general corrosion resistance.
Which Hastelloy is best for hydrochloric acid?
Hastelloy B-2 and B-3 perform exceptionally well in reducing acid environments such as hydrochloric acid.
Can Hastelloy be welded?
Yes, most Hastelloy alloys have good weldability when proper procedures are followed.
Conclusion
Hastelloy alloys are essential materials for industries dealing with aggressive corrosion environments. Selecting the right grade ensures long-term performance, safety, and cost efficiency.
Contact Us
Looking for a reliable Hastelloy supplier?
Uprime Metal provides high-quality nickel alloys with full certification and global export experience.
Contact us today for pricing, availability, and technical support.
