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Yasin Fasteners, based in Istanbul, Turkey, stands out as a top-notch manufacturer and supplier of corrosion-resistant fasteners, particularly known for their Hastelloy C22 Washers. With a strong reputation for working with high-performance materials, Yasin Fasteners provides fastening solutions designed for the toughest industrial settings. Their state-of-the-art production capabilities and strict compliance with international standards guarantee exceptional quality, precision, and long-lasting durability. They cater to vital sectors like chemical processing, marine, power generation, and pharmaceuticals, offering dependable products that can handle extreme temperatures, corrosive substances, and mechanical stress. Their dedication to quality and outstanding service has made them a reliable partner on the global stage.
Hastelloy C22 Washers are crafted from a nickel-chromium-molybdenum alloy, enhanced with iron and tungsten, which gives them remarkable resistance to a variety of corrosive environments. The typical makeup includes around 56% Nickel, 20–22.5% Chromium, 12.5–14.5% Molybdenum, and 2.5–3.5% Tungsten. These washers boast impressive mechanical strength, showcasing high yield and tensile properties, particularly in high temperatures and harsh chemical conditions. They effectively resist pitting, crevice corrosion, and stress corrosion cracking in both oxidizing and reducing environments, making them perfect for critical sealing and load-distribution tasks in corrosive systems.
| 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 % |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Hastelloy C22 Washers find extensive use in industries where resistance to highly aggressive chemicals is crucial. You’ll commonly see them in heat exchangers, reactors, flue gas scrubbers, and pressure vessels within chemical processing plants. They’re also utilized in marine engineering, pollution control equipment, pharmaceutical manufacturing, and food processing systems—especially where durability and reliability are non-negotiable.
At Yasin Fasteners, we ensure that our Hastelloy C22 washers are packaged with utmost care to maintain their superior quality. Each washer is meticulously inspected and securely packed to prevent any damage during transit. Our packaging is designed to safeguard against environmental factors and ensure that the washers reach you in pristine condition. We use high-quality, durable materials for packaging and clearly label each package for easy identification and efficient handling. Your satisfaction is our priority, and we guarantee the safe delivery of our products.
Yasin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Istanbul, Turkey, with over 8 years of experience serving global industries.
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