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Hastelloy C22 Chemical Composition Is As Follows:
Element | Percentage (%)
Nickel | 56.0-62.0
Chromium | 20.0-22.5
Molybdenum | 12.5-14.5
Iron | 2.00-6.00
Tungsten | 2.50 max
Manganese | 0.50 max
Silicon | 0.08 max
Carbon | 0.010 max
Cobalt | 2.50 max
Vanadium | 0.35 max
Phosphorus | 0.02 max
Sulfur | 0.02 max
Hastelloy alloy c22 chemical composition contains small amounts of other elements such as copper, titanium, and aluminum. These elements contribute to the alloy's exceptional corrosion resistance and high mechanical strength.
Hastelloy C22 Datasheet
Hastelloy C22, also known as UNS N06022, alloy c22 material is a nickel-chromium-molybdenum alloy that provides excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. SB 575 UNS N06022 Nickel Alloy Plate is widely used in various industries, including chemical processing, power generation, and pollution control due to its outstanding performance in harsh environments.
Hastelloy C22 has a face-centered cubic (FCC) crystal structure and has a density of 8.7 g/cm3. 2.4602 Hastelloy c22 can be produced in various forms such as pipes, plates, fittings, and bars.
Din 2.4602 Resistance Corrosive
Hastelloy C22 composition exhibits outstanding resistance to a wide range of corrosive environments, including oxidizing and reducing media. It is particularly resistant to sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, and seawater. In addition, nickel alloy c22 has excellent resistance to stress corrosion cracking in chloride-containing environments.
Haynes C22 Easy To Welding
Material Hastelloy C22 can be welded using various welding techniques, including gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and shielded metal arc welding (SMAW). N06022 alloy can also be fabricated using conventional techniques such as hot and cold forming, forging, and machining.
Hastelloy C22 vs. Hastelloy C276: Which should you choose?
The main difference lies in the Chromium content.
- Hastelloy C22 (22% Cr): Better for oxidizing environments (Nitric acid, Ferric chlorides).
- Hastelloy C276 (16% Cr): Better for reducing environments (Hydrochloric acid). C22 is generally considered the more "evolved" alloy for multi-purpose chemical processing plants where conditions may fluctuate between oxidizing and reducing.
Frequently Asked Questions about Hastelloy C22 (UNS N06022)
Q: What is the equivalent grade of Hastelloy C22?
The equivalent grades for Hastelloy C22 are UNS N06022 and DIN W.Nr. 2.4602. It is part of the "C" family of nickel-chromium-molybdenum alloys, often compared to Alloy C276, C4, and C2000.
Q: Why choose C22 over C276?
While both offer excellent corrosion resistance, Hastelloy C22 has a higher chromium content (22% vs 16% in C276). This makes C22 significantly more resistant to oxidizing chemicals and aqueous corrosion, providing better overall protection in multi-purpose chemical processing environments.
Q: Is Hastelloy C22 resistant to Hydrochloric Acid?
Yes, thanks to its high molybdenum and tungsten content, Alloy C22 provides excellent resistance to reducing acids like hydrochloric acid, phosphoric acid, and sulfuric acid, particularly in diluted concentrations and moderate temperatures.
