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Mazin Fasteners is a reliable manufacturer and supplier of Hastelloy Nuts, proudly based in Muscat, Oman. We specialize in providing high-performance fastening solutions tailored for the toughest industrial environments that face high levels of corrosion. Our nuts are meticulously engineered to deliver outstanding strength, durability, and resistance to harsh chemicals and extreme temperatures. At Mazin Fasteners, we ensure that our Hastelloy nuts are crafted in line with international standards, utilizing cutting-edge manufacturing techniques and rigorous quality control measures. With a strong commitment to quality, reliability, and prompt delivery, we cater to essential industries throughout Oman and the Middle East, offering dependable and long-lasting fastening solutions.
Our Hastelloy nuts are made from nickel-based alloys that include chromium, molybdenum, iron, and tungsten, all designed to provide exceptional corrosion resistance. This unique composition helps them resist pitting, crevice corrosion, and stress corrosion cracking, even in aggressive chemical settings. These nuts boast high tensile and yield strength, along with good ductility and toughness. Hastelloy maintains consistent mechanical properties across a wide temperature range, ensuring reliable performance even under severe chemical, thermal, and mechanical stress. This makes them perfect for critical industrial 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 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 % |
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 nuts find their place in various applications that are exposed to highly corrosive chemicals, high temperatures, and high-pressure conditions. They are frequently used in industries such as chemical processing, petrochemical, oil and gas, pharmaceuticals, and pollution control. Common applications include flanged joints, pressure vessels, heat exchangers, piping systems, and reactors that handle aggressive media. Their remarkable corrosion resistance, mechanical strength, and durability guarantee a long service life, operational safety, and minimized maintenance in demanding industrial environments.
To ensure that the Hastelloy nuts reach the customers in the best condition, Mazin Fasteners takes every measure to provide a secure packing. Every nut is packed in protective materials to avoid any harm, rusting, or contamination as it moves from one place to another. Our packaging products include strong cartons and special packaging that is unique to your requirements. Proper labeling and packing also help us ensure that the products are properly arranged and easily identifiable, thus our promise of quality products well packed and in good condition.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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