Essential FAQs to Consider When Purchasing Inconel Alloy C-276

Five Key Applications of Inconel Alloy 600

When exploring high-performance alloys, Inconel C-276 emerges as a standout choice due to its exceptional resistance to harsh environments. Also known as Hastelloy C276, with the UNS Number N10276 and WNR Number 2.4819, this nickel-molybdenum-chromium alloy is renowned for its corrosion resistance and versatility. Below, we present key FAQs for potential buyers to help you make an informed decision when acquiring Inconel C-276.

What is Inconel C-276, and What Makes It Unique?

Inconel C-276 is a nickel-molybdenum-chromium superalloy, enhanced with tungsten, designed to offer excellent corrosion resistance in a variety of severe environments. Its high molybdenum content provides exceptional resistance to pitting and crevice corrosion, while the chromium content protects against oxidizing conditions. This unique composition enables Inconel C-276 to endure environments that typically cause failure in most other materials.

What Standards Does Inconel C-276 Comply With?

Inconel C-276 adheres to multiple ASTM standards, including B564 (forgings), B574 (rods, bars, and wires), B575 (plates, sheets, and strips), B619 (welded pipe), B622 (seamless tube and pipe), B626 (welded tube), B366 (fittings), B462 (forgings), and B775 (welded pipe). Compliance with these standards ensures the alloy's reliability and performance across various applications and industries.

What Are the Primary Applications of Inconel C-276?

Thanks to its robustness in aggressive environments, Inconel C-276 is utilized in a wide range of applications, particularly where corrosion resistance is critical. Key industries include:

• Chemical processing
• Petrochemicals and refining
• Flue gas desulfurization
• Pulp and paper production
• Industrial and municipal waste treatment
• Pharmaceutical and food processing equipment

How Does Inconel C-276 Perform in Corrosive Environments?

Inconel C-276 excels in both oxidizing and reducing environments, offering superior protection against pitting, stress corrosion cracking, and crevice corrosion. It is particularly effective against corrosives such as sulfuric, hydrochloric, acetic, and phosphoric acids. Notably, it is among the few materials that can resist the corrosive effects of wet chlorine gas, hypochlorite, and chlorine dioxide solutions.

Can Inconel C-276 Be Welded?

Yes, Inconel C-276 can be welded using common techniques such as gas tungsten arc welding (GTAW/TIG), gas metal arc welding (GMAW/MIG), shielded metal arc welding (SMAW), and submerged arc welding (SAW). It is essential to use matching filler metals to ensure that the corrosion resistance of the weld area aligns with that of the base metal.

What Considerations Should Be Made When Fabricating with Inconel C-276?

While Inconel C-276 is ductile and can be fabricated using traditional methods, it is important to account for its work-hardening characteristics. Careful planning of the fabrication sequence can minimize work hardening and simplify the process. Due to its high nickel content, appropriate tools, speeds, and feeds are necessary for cutting and machining to avoid work hardening.

How Does Inconel C-276 Compare to Other Corrosion-Resistant Alloys?

Inconel C-276 is often compared to high-performance alloys such as Inconel 625, Monel 400, and Duplex 2205. Its superior corrosion resistance across a wider range of environments, especially against chlorides and both oxidizing and reducing media, distinguishes it. However, the specific alloy choice should depend on the application’s unique conditions, including temperature, chemical exposure, and mechanical requirements.

What Are the Availability and Forms of Inconel C-276 Products?

Inconel C-276 is available in various forms, including plate, sheet, bar, wire, pipe, tube, and fittings, to meet diverse industrial needs. This range of forms ensures components can be engineered to precise specifications, providing flexibility in design and application.

How Do You Ensure the Quality of Inconel C-276 Products?

When purchasing Inconel C-276, it is crucial to source from reputable suppliers who comply with strict quality standards. Verify that the products meet the relevant ASTM standards and request material test certificates (MTC) that confirm the alloy’s composition, mechanical properties, and adherence to specifications.