Hastelloy C-2000
Supplied by Huaxiao-Alloy – Your Trusted Global Alloy Partner
1. Introduction to Hastelloy C-2000
Hastelloy C-2000 is a unique nickel chromium molybdenum copper alloy developed to combine the broad corrosion resistance of the C-series with improved resistance to oxidizing chemicals. It stands out for its ability to resist both reducing and oxidizing environments, a balance that makes it extremely versatile in chemical process industries.
Unlike many other Hastelloy alloys, C-2000 incorporates copper to enhance its resistance to sulfuric acid and other strong reducing agents. At the same time, its chromium content provides robust protection against oxidizing agents, including ferric salts and dissolved oxygen.
At Huaxiao-Alloy, we supply Hastelloy C-2000 in a full range of product forms, backed by ISO-certified quality systems and a strong international distribution network. Our goal is to deliver both high-performance alloys and tailored services to meet demanding industrial needs.
2. Chemical Composition of Hastelloy C-2000
| Element | Typical wt.% | Function |
|---|---|---|
| Nickel (Ni) | Balance | Base element ensuring corrosion resistance |
| Chromium (Cr) | 22 | Oxidation resistance |
| Molybdenum (Mo) | 16 | Enhances resistance to localized corrosion |
| Copper (Cu) | 1.6 | Improves resistance to sulfuric acid |
| Iron (Fe) | ≤3 | Balancing element |
| Cobalt (Co) | ≤2 | Trace strengthening |
| Tungsten (W) | ≤2 | Increases resistance to reducing acids |
| Carbon (C) | ≤0.01 | Very low to prevent sensitization |
| Manganese (Mn) | ≤0.5 | Deoxidizer |
| Silicon (Si) | ≤0.08 | Controlled for improved corrosion properties |
The combination of chromium, molybdenum, and copper provides a unique corrosion resistance profile not found in other Hastelloy alloys.
3. Mechanical Properties of Hastelloy C-2000
| Property | Typical Value |
|---|---|
| Density | 8.50 g/cm³ |
| Melting Range | 1325–1380 °C |
| Tensile Strength (Room Temp) | 690–760 MPa |
| Yield Strength (0.2 percent offset) | 310–350 MPa |
| Elongation | 40–45 percent |
| Hardness | 85–90 HRB |
These properties show that Hastelloy C-2000 provides a balance of strength, ductility, and toughness, making it well-suited to aggressive process environments.
4. Key Features of Hastelloy C-2000
Broad corrosion resistance against both oxidizing and reducing environments.
Superior resistance to sulfuric acid due to copper addition.
Excellent performance against hydrochloric acid, phosphoric acid, and acetic acid.
High resistance to pitting, crevice corrosion, and stress corrosion cracking.
Fabrication flexibility with good weldability and no post-weld heat treatment required.
Reliable performance across a wide temperature range.
5. Heat Treatment
Hastelloy C-2000 is supplied in the solution-annealed condition.
Solution annealing: 1121 °C followed by rapid quenching.
This process maximizes corrosion resistance and mechanical ductility.
6. Applications of Hastelloy C-2000
6.1 Chemical Processing
Heat exchangers in sulfuric acid plants.
Reaction vessels for hydrochloric acid and acetic acid.
Evaporators and scrubbers handling mixed acid environments.
6.2 Pollution Control
Waste treatment systems exposed to acidic effluents.
Flue gas desulfurization components.
Equipment handling chlorinated hydrocarbons.
6.3 Oil and Gas Industry
Sour gas service environments containing hydrogen sulfide and chlorides.
Acid cleaning and stimulation equipment.
6.4 Pharmaceutical and Food Industry
Reactors requiring resistance to cleaning chemicals.
Storage and transport containers for aggressive liquid chemicals.
6.5 Power Generation
Heat exchangers and condensers operating under acidic condensates.
Components exposed to oxidizing flue gases.
7. Advantages of Hastelloy C-2000
Outstanding versatility in mixed chemical environments.
Long service life reduces maintenance costs.
Suitable for industries requiring maximum reliability and uptime.
Greater resistance to sulfuric acid than C-22 or C-276.
Maintains strength and ductility after fabrication and welding.
8. Limitations of Hastelloy C-2000
Higher cost compared with stainless steels and some other nickel alloys.
Availability may be more limited compared with C-22 or C-276.
Requires specialized tooling for machining due to work hardening.
9. Comparison with Other Hastelloy Alloys
| Alloy | Advantages | Limitations | Key Applications |
|---|---|---|---|
| Hastelloy C-2000 | Superior sulfuric acid resistance; dual resistance to oxidizing and reducing agents | Higher cost | Chemical processing, pollution control |
| Hastelloy C-22 | Exceptional resistance to oxidizing chemicals | Less effective in reducing acids | Waste treatment, pharmaceuticals |
| Hastelloy C-276 | Best for reducing environments | Lower sulfuric acid resistance | Marine, petrochemical |
| Hastelloy C-4 | High-temperature stability | Limited oxidizing resistance | Power generation, pollution control |
10. Standards and Specifications
UNS: N06200
W. Nr.: 2.4675
Standards:
ASTM B575 (Plate, Sheet, Strip)
ASTM B619 (Welded Pipe)
ASTM B622 (Seamless Pipe and Tube)
ASTM B626 (Welded Tube)
ASTM B366 (Fittings)
11. Product Forms Supplied by Huaxiao-Alloy
We provide Hastelloy C-2000 in:
Plates, Sheets, and Strips
Bars and Rods
Seamless and Welded Tubes
Pipes and Fittings
Welding Wire and Electrodes
Forgings and Customized Parts
All products come with mill test certificates and optional third-party inspection.
12. Fabrication and Processing
Forming: Hot forming at 950–1175 °C, with rapid quenching. Cold forming requires intermediate annealing.
Welding: Easily weldable by GTAW, GMAW, and SMAW. Recommended filler metals include Hastelloy C-2000.
Machining: Requires rigid tools, lower speeds, and adequate coolant due to work hardening.
Cleaning: Avoid chloride-based solutions after fabrication.
13. Why Choose Huaxiao-Alloy for Hastelloy C-2000
Global supplier with strong distribution network.
Comprehensive stock of Hastelloy C-2000 in multiple forms.
Custom cutting, machining, and finishing available.
ISO 9001 certified, ensuring strict quality standards.
Technical experts to assist with material selection and fabrication guidance.
Competitive pricing and fast delivery worldwide.
📩 Contact us today at [email protected]
📱 WhatsApp: +1 (579) 300-2733
Its unique resistance to sulfuric acid and balanced performance in both oxidizing and reducing environments.
Yes, it resists grain boundary precipitation, eliminating the need for post-weld heat treatment.
Yes, it provides strong resistance to localized corrosion, making it suitable for marine environments.
We supply plates, sheets, bars, tubes, fittings, welding wires, and custom-machined parts.
Industries include chemical processing, oil and gas, pollution control, pharmaceuticals, and power generation.
15. Conclusion
Hastelloy C-2000 is a next-generation corrosion-resistant alloy designed to meet the challenges of modern industries handling highly aggressive environments. With its unique copper addition, it surpasses many other Hastelloy grades in resisting sulfuric acid while maintaining broad protection against oxidizing and reducing agents.
At Huaxiao-Alloy, we deliver Hastelloy C-2000 with assured quality, global supply, and technical expertise. Whether you require raw materials or custom-engineered components, we are your trusted partner for demanding projects.
📩 Get in touch with us today at [email protected] or 📱 WhatsApp +1 (579) 300-2733 for a personalized quotation.
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