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Mazin Fasteners is a well-respected manufacturer and supplier of Hastelloy Bolts, proudly based in Muscat, Oman. We specialize in providing high-performance fastening solutions tailored for the toughest industrial environments that face extreme corrosion. Our bolts are meticulously engineered to offer outstanding strength, durability, and resistance to harsh chemicals and high temperatures. At Mazin Fasteners, we produce Hastelloy bolts in line with international standards, utilizing cutting-edge manufacturing techniques and rigorous quality control measures. With a strong commitment to quality, precision, and timely delivery, we cater to critical industries throughout Oman and the broader Middle East.
Our Hastelloy bolts are crafted from nickel-based alloys that include a mix of chromium, molybdenum, iron, and other alloying elements, depending on the specific grade. This unique composition grants them remarkable resistance to corrosion, pitting, crevice corrosion, and stress corrosion cracking. These bolts not only demonstrate excellent tensile and yield strength but also possess great ductility and toughness. Hastelloy alloys maintain consistent mechanical properties across a wide temperature range, ensuring dependable performance even under extreme chemical and mechanical stress.
| 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 bolts find their place in various applications that are subjected to severe corrosion, high pressures, and elevated temperatures. They are frequently used in industries such as chemical processing, oil and gas, petrochemical, power generation, and pollution control. Common applications include pressure vessels, heat exchangers, reactors, piping systems, and critical bolted joints that handle corrosive fluids. Thanks to their exceptional corrosion resistance and mechanical reliability, these bolts guarantee a long service life, operational safety, and minimized maintenance in demanding industrial settings.
To further protect our Hastelloy bolts, Mazin Fasteners takes extra care while packing them. Every bolt is covered with protective materials to ensure that it is not damaged, corroded or contaminated in any way during transportation. Our packaging products include strong cartons and special packaging that meets your requirements. We ensure that all our products are well packed and labeled in a manner that makes it easy to identify and handle the products to ensure that we deliver quality products 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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