Based in China, ZYTC Alloy supplies Hastelloy® C-22 (UNS N06022) for applications requiring broad-spectrum corrosion resistance across both oxidizing and reducing environments. The alloy is suitable for chemical processing, pharmaceutical manufacturing, and pollution control systems. 1. Product Specifications & PropertiesAlloy C-22 is a nickel-chromium-molybdenum-tungsten alloy with controlled iron and carbon content. Its balanced chemistry provides enhanced resistance to localized corrosion compared to earlier C-type alloys, while maintaining versatility across diverse corrosive media. Chemical Composition (%, range)| Element | Content |
|---|
| Chromium, Cr | 20.0-22.5 | | Molybdenum, Mo | 12.5-14.5 | | Tungsten, W | 2.5-3.5 | | Iron, Fe | 2.0-6.0 | | Cobalt, Co | 2.5 max | | Carbon, C | 0.015 max | | Nickel, Ni | Remainder |
Physical & Mechanical Properties| Property | Metric | Imperial |
|---|
| Density | 8.69 g/cm³ | 0.314 lb/in³ | | Melting Point | 1399°C | 2550°F | | Elastic Modulus | 206 GPa | 29,900 ksi |
Note: Tensile and yield properties vary with product form and thickness. Contact ZYTC Alloy for form-specific mechanical data. 2. Operating Conditions & Selection GuidelinesIdeal Media: Suitable for both oxidizing acids (nitric, chromic) and reducing acids (hydrochloric, sulfuric). Particularly effective in mixed acid environments and acid-chloride conditions where pitting and crevice corrosion are concerns Temperature Range: Maintains corrosion resistance up to elevated temperatures typical of chemical processing. Annealing performed at 1122°C (2050°F) Critical Advantage: Offers superior resistance to stress corrosion cracking (SCC) in chloride-bearing environments compared to stainless steels and many nickel alloys Common Applications: Flue gas desulfurization scrubbers, chlorination systems, pharmaceutical processing equipment, nuclear fuel handling systems, pulp bleaching plants, and wastewater treatment components
3. Fabrication & Material ComparisonForming Characteristics: Suitable for both hot and cold forming operations using standard equipment. Good ductility allows for complex shapes Welding Considerations: Excellent weldability using GTAW/TIG, GMAW, and plasma arc methods. Submerged arc welding not recommended. Resists sensitization in the heat-affected zone, allowing as-welded service for most applications Machining: Compatible with high-speed steel and carbide tooling using conventional coolants. Work-hardening characteristics require rigid setups and sharp tooling Versus C-276: C-22 offers improved resistance to localized corrosion and better performance in oxidizing media due to higher chromium content. Provides broader versatility across mixed-acid environments Versus C-4: Higher molybdenum and tungsten content gives C-22 superior resistance to reducing conditions, while maintaining good thermal stability Product Forms: Available as bar, forging stock, sheet, plate, and welding wire. Custom fabrications available upon request
Contact ZYTC Alloy for application engineering support or to request a quotation. Our technical team can assist with material selection based on your specific process conditions and corrosion concerns. Contact Us:Email:daisy@zytcsteel.com WhatsApp/WeChat: +86 17335753350 |