Hastelloy C-22 Plate

Hastelloy C-22 is a premium nickel-based corrosion-resistant alloy that delivers exceptional performance in extreme chemical processing environments. Produced by Dong-A Special Metals, this high-performance material is composed of nickel (Ni), chromium (Cr), molybdenum (Mo), iron (Fe), and tungsten (W), offering reliable resistance in both oxidizing and reducing atmospheres.


Upgraded from C-276 for Enhanced Corrosion Resistance

Hastelloy C-22 is an advanced version of C-276, developed to improve resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-rich conditions. This makes it the alloy of choice in industries where multiple corrosive agents coexist — including chemical processing, semiconductors, and gas treatment systems.


Balanced Composition for Long-Term Stability

The chemical composition of Hastelloy C-22 includes over 56% nickel, 20–22% chromium, 13% molybdenum, 3% iron, and up to 3% tungsten. This precise formulation enables the formation of a stable passive oxide film, providing excellent corrosion resistance in complex and aggressive environments.


Ideal for Semiconductor and Pharmaceutical Industries

C-22’s superior resistance to localized corrosion makes it indispensable in semiconductor fabrication, pharmaceutical reactors, and fine chemical processes. It is widely used in components like reactors, heat exchangers, valves, tank liners, piping systems, and pump housings exposed to strong acids such as hydrofluoric acid and nitric acid.


Strong Market Demand in South Korea

In South Korea, demand for Hastelloy C-22 is growing rapidly, particularly in semiconductor, offshore plant, and pharmaceutical sectors. As environmental regulations tighten, industries are prioritizing materials that can minimize metal contamination while maintaining structural integrity under aggressive chemical exposure.


High-Value Recycling and Sustainability

C-22’s content of strategic metals like nickel, molybdenum, chromium, and tungsten makes its scrap extremely valuable. Dong-A Special Metals utilizes advanced technology to recycle C-22 scrap, recovering high-purity nickel and tungsten for reuse in high-end alloy applications. This contributes to a sustainable resource circulation system aligned with global carbon neutrality goals.


Supporting Self-Reliance and Localization

The localization of specialty alloys like Hastelloy C-22 plays a critical role in reducing import dependence. As South Korea advances its national strategy for self-reliance in key materials, the domestic recycling and reprocessing of rare alloys will help boost technological competitiveness and ensure stable supply chains.


Partner with Dong-A Special Metals for C-22 Solutions

Dong-A Special Metals is committed to recycling high-value alloys such as Hastelloy C-22. We provide high-purity, ready-to-melt raw materials for Korean steelmakers and precision component manufacturers. Contact us today to learn how we can help you reduce costs, shorten lead times, and achieve sustainability targets.



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Contact Us

Homepage : http://www.dongaspecial.co.kr/

Mobile : +82-10-6367-7392

Company Catalog Download :

1) Eng : https://blog.naver.com/dongaspecial/223683563148

2) Kor : https://blog.naver.com/dongaspecial/223683558947

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Product Brochure Download :

1) Eng : https://blog.naver.com/dongaspecial/223683548933

2) Kor : https://blog.naver.com/dongaspecial/223683546036

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2) adenjang@dongasepcial.co.kr

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