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Lina Fasteners stands out as a top-notch manufacturer and supplier based in Tunis, Tunisia, specializing in high-performance Hastelloy C22 Bolts that are perfect for tough and corrosive environments. Crafted to meet international standards, these bolts excel in resisting pitting, crevice corrosion, and both oxidizing and reducing acids. With a commitment to quality, Lina Fasteners employs cutting-edge manufacturing techniques, top-grade raw materials, and rigorous quality control to ensure that their fastening solutions are precise, durable, and reliable. Catering to vital sectors like chemical processing, oil & gas, petrochemical, power generation, and marine engineering, Lina Fasteners guarantees consistent quality and outstanding performance, even in the most extreme industrial settings.
Hastelloy C22 Bolts are crafted from a unique blend of nickel, chromium, molybdenum, and tungsten alloys, specifically designed to offer exceptional corrosion resistance in both oxidizing and reducing conditions. This alloy boasts impressive tensile and yield strength, along with excellent toughness and ductility. It effectively resists pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. These bolts maintain their mechanical stability even under high temperatures and pressures, ensuring reliable performance in aggressive chemical environments and long-lasting structural integrity for critical fastening applications.
| 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 C22 Bolts | 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 Bolts | 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 Bolts find their place in a variety of settings, particularly in chemical processing, marine, and other highly corrosive industrial environments. They are commonly used in chemical reactors, heat exchangers, pressure vessels, piping systems, and pollution control equipment. These bolts are a staple in oil refineries, petrochemical plants, wastewater treatment facilities, and offshore platforms. Their remarkable resistance to both oxidizing and reducing acids makes them particularly suitable for applications like flue gas desulfurization, pharmaceutical manufacturing, and chemical processing, ensuring they meet the demands of even the most challenging environments.
At Lina Fasteners, we ensure that our Hastelloy C276 Bolts are installed with the highest level of care to maintain their quality and integrity. Each bolt is individually wrapped with protective and corrosion-resistant coatings to prevent damage during transport. We use sturdy and weatherproof boxes with clearly labeled product information for easy identification. Our packaging products are designed to withstand harsh shipping conditions, ensuring that your Hastelloy C276 bolts arrive in perfect condition, ready for immediate use quite. Custom packaging is also available to meet specific needs.
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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