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Lina Fasteners is a leading manufacturer and supplier of Hastelloy C22 Washers, proudly based in Tunis, Tunisia. We specialize in providing top-notch fastening components that excel in highly corrosive and demanding industrial settings. With our state-of-the-art manufacturing facilities, precision machining, and rigorous quality control, we ensure that our washers meet ASTM, ASME, and ISO standards. Our products cater to various industries, including chemical processing, petrochemical, oil and gas, marine, and power generation. Renowned for their exceptional corrosion resistance, durability, and precise dimensions, our standard and custom Hastelloy C22 Washers are designed to ensure even load distribution, prevent joint damage, and deliver reliable performance even in extreme chemical, high-temperature, and high-pressure conditions around the globe.
Hastelloy C22 Washers are crafted from a nickel-molybdenum-chromium alloy, with small amounts of tungsten and iron added for enhanced performance. This unique chemical makeup gives them remarkable resistance to both oxidizing and reducing agents, as well as pitting and crevice corrosion. On the mechanical side, these washers boast high tensile strength, impressive hardness, superior toughness, and resistance to creep and fatigue, even at elevated temperatures. They maintain their shape and stability under thermal cycling and mechanical stress, ensuring consistent load distribution and dependable performance in highly aggressive chemical and high-pressure environments. Hastelloy C22 Washers truly combine mechanical durability with outstanding corrosion resistance, making them ideal for long-lasting industrial applications.
| 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 situations where corrosion resistance, strength, and reliability are crucial, especially in aggressive chemical and high-temperature environments. You’ll often see them in chemical reactors, heat exchangers, pumps, valves, and piping systems within the chemical and petrochemical industries.
At Lina 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.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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