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Hastelloy C22 Fasteners are top-of-the-line, corrosion-resistant fasteners crafted for the toughest chemical, marine, and industrial settings. Made from Hastelloy C22, a robust nickel-molybdenum-chromium alloy, these fasteners boast remarkable resistance to both oxidizing and reducing agents, as well as pitting and stress corrosion cracking. Suppliers in Hamilton, New Zealand, like Aria Fasteners, ensure that these fasteners come with precise threading, consistent dimensions, and a commitment to international quality standards. They’re perfect for securing flanges, pipelines, pressure vessels, and machinery where long-lasting reliability, mechanical strength, and corrosion resistance are essential for safe and durable operation.
The composition of Hastelloy C22 Fasteners primarily includes nickel, along with molybdenum, chromium, iron, and tungsten, which together provide exceptional chemical and corrosion resistance. On the mechanical side, they deliver high tensile strength, toughness, and stability even under heavy loads and high temperatures. Their unique alloy composition helps prevent localized corrosion, crevice corrosion, and stress corrosion cracking, making them ideal for highly corrosive environments in chemical, petrochemical, marine, and pharmaceutical applications where standard stainless steels might not hold up.
| Specifications | ASTM B574 / ASME SB574 |
|---|---|
| Fasteners size | Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Washers Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes Machine Screws Size : M1.6 – M12 Self Tapping Screw Size : No.2 – No. 14 |
| Fasteners Length | 3 mm to 200 mm |
| Fastener Threads | UNF, BSW, BSF, METRIC, UNC or as required |
| Standard of High Nickel Alloy Fasteners | DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard Stud Bolt length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 Hex nuts |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Surface Coating | Ptfe Coated High Nickel Alloy Fasteners Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating |
| Fasteners Finishing | High Nickel Alloy : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), High Nickel Alloy, Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide. |
| Grade | C | Mn | Si | Co | S | Ni | Cr | Fe | Mo | W | V | P |
| Hastelloy Fasteners | 0.010 max | 1.0 max | 0.08 max | 2.5 max | 0.03 max | Bal | 14.5 – 16.5 | 4 – 7 | 15 – 17 | 3 – 4.5 | 0.35 max | 0.04 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy Fasteners | 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 1,15,000 , MPa – 790 | Psi – 52,000 , MPa – 355 | 40 % |
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Hastelloy C22 Fasteners are essential in applications where corrosion resistance is required and in extreme environments. Widely used in the pharmaceutical industry, oil refineries, and marine applications involving exposure to aggressive chemicals and high temperatures These packaging materials are also used in aerospace and electricity generation for critical applications requiring exceptional durability and performance. Their reliability under extreme conditions makes them suitable for a variety of applications requiring durable and flexible docking solutions.
You’ll find Hastelloy C22 Fasteners widely utilized in chemical processing plants, offshore platforms, desalination facilities, power generation systems, and marine installations. They excel at securing pipelines, flanges, pressure vessels, heat exchangers, and industrial machinery that face aggressive chemicals, chlorides, or oxidizing conditions. These fasteners are designed to maintain joint integrity, prevent loosening, and ensure long-term reliability even in extreme operating environments. Additionally, Hastelloy C22 Fasteners are also used in pharmaceutical, food processing, and specialized industrial applications that demand both high mechanical performance and outstanding corrosion resistance.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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