Al Vishwas Nickel Alloys distinguishes itself as a premier manufacturer and supplier of superior Hastelloy Fasteners, proudly serving a range of industries across Dubai, UAE. Well-known for delivering high-performance fastening solutions, the company focuses on products that excel in extreme settings where corrosion, heat, and mechanical stress present major challenges. Their Hastelloy Fasteners are carefully produced using advanced manufacturing methods and stringent quality controls, guaranteeing exceptional durability, strength, and reliability. Al Vishwas Nickel Alloys caters to a wide variety of sectors, such as chemical processing, petrochemical, marine, and power generation, supplying fasteners built to comply with international standards and withstand the harshest industrial environments.
Hastelloy Fasteners consist primarily of nickel, molybdenum, and chromium, with some grades adding tungsten, cobalt, and iron to enhance performance. This distinctive chemical makeup provides them with remarkable resistance to pitting, crevice corrosion, and severe oxidizing or reducing environments. From a mechanical standpoint, Hastelloy Fasteners offer notable tensile strength, superior fatigue resistance, and reliability even under extreme temperatures. They likewise maintain their structural integrity when subjected to high pressure and heavy loads. Together, these qualities make Hastelloy Fasteners ideal for demanding applications in high-temperature and highly corrosive environments.
| 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 % |
At Al Vishwas Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Hastelloy Fasteners in Dubai, UAE, delivering advanced solutions for every piping requirement you may have. Our modern manufacturing facilities are strategically situated in the UAE, enabling us to keep an extensive stock of more than 16,000 tons of top-grade materials on hand and ready to ship. We are committed to providing exceptional products and services, guaranteeing dependability and excellence for our worldwide customers.
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Hastelloy Fasteners are extensively employed in industries that function in harsh and highly corrosive settings. Within chemical processing plants, they serve a vital function in fastening equipment that comes into contact with powerful acids and reactive chemicals. Petrochemical facilities rely on them for high-temperature units, reactors, and pressure vessels. Moreover, they are broadly used in offshore and marine engineering owing to their exceptional resistance to seawater corrosion. Their dependability and longevity make them an indispensable choice for applications where safety and performance are of the utmost importance.