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Hastelloy C22 Washers are top-notch fasteners known for their incredible resistance to corrosion, making them a go-to choice in tough industrial and chemical settings. Crafted from a high-performance blend of nickel, molybdenum, and chromium alloys, these washers are built to deliver outstanding strength and durability, even when faced with harsh chemical conditions. Their precise sizing and consistent quality guarantee reliable load distribution and secure fastening in situations where ordinary materials would fail quickly. Suppliers like Aria Fasteners, based in Hamilton, New Zealand, provide Hastelloy C22 Washers that adhere to strict engineering standards, ensuring they’re a trusted option for chemical processing, marine applications, and high-temperature industries.
These washers are primarily made of nickel, with notable amounts of molybdenum and chromium, which give them remarkable resistance to both oxidizing and reducing agents. This unique alloy stands up to pitting, crevice corrosion, and stress corrosion cracking, making it perfect for extremely corrosive environments. On the mechanical side, C22 washers boast excellent dimensional stability and load-bearing capabilities, even at elevated temperatures. They strike a balance between moderate hardness and toughness, ensuring they won’t deform under high clamping forces while offering a long service life. Their impressive chemical and mechanical properties make them ideal for applications where reliability in aggressive conditions is a must.
| Specifications | ASTM B574 / ASME SB574 |
|---|---|
| Washers 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 |
| Washers Length | 3 mm to 200 mm |
| Washers 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 |
| Washers 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 C22 Washers | 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 C22 Washers | 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 washers are widely used in industries where exceptional corrosion resistance is required. They are ideal for chemical processing plants, petrochemical industries, and marine environments, providing reliable sealing and fastening in aggressive conditions. These washers are also used in pharmaceutical and food processing equipment due to their resistance to pitting and crevice corrosion. Their durability and ability to withstand high temperatures make them suitable for aerospace and nuclear applications, ensuring secure and long-lasting performance in critical environments.
Hastelloy C22 Washers find extensive use in chemical processing equipment, petrochemical plants, and marine installations, thanks to their unparalleled corrosion resistance. They work perfectly with bolts and fasteners in piping systems, pressure vessels, heat exchangers, and tanks that come into contact with acids, chlorides, or other harsh substances. In high-temperature and high-pressure situations, these washers play a crucial role in maintaining joint integrity and preventing leaks. Their durability and chemical stability make them an essential component in demanding environments.
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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