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Punit Fasteners is a reputable manufacturer and supplier of high-quality Hastelloy fasteners, based in Delhi, India. Known for their precision, durability, and top-notch quality, the company offers a diverse selection of Hastelloy fasteners, including bolts, nuts, washers, and threaded rods in various grades like C-276, C-22, and C-2000. These fasteners are engineered to endure extreme corrosion, high pressure, and harsh chemical environments, all while adhering to international quality standards. Punit Fasteners caters to essential sectors such as chemical processing, oil & gas, power generation, and marine industries, providing dependable fastening solutions that meet the rigorous demands of both Indian and global markets.
Hastelloy fasteners are mainly made of nickel, with varying amounts of molybdenum, chromium, iron, cobalt, and tungsten, depending on the specific grade. This distinctive blend offers exceptional resistance to corrosion, pitting, and cracking, even in harsh chemical and thermal environments. On the mechanical side, Hastelloy fasteners boast impressive tensile strength (~790 MPa), yield strength (~355 MPa), and remarkable elongation (~40%), which contributes to their high ductility. They maintain their structural integrity at elevated temperatures, with a melting point around 1370°C and a density of about 8.9 g/cm³, making them perfect for demanding, high-stress 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 fasteners find extensive use in industries where extreme conditions are the norm. They are particularly suited for chemical processing plants, offshore oil and gas platforms, power generation facilities, and marine environments due to their resistance to aggressive chemicals and seawater corrosion. Common applications include securing pressure vessels, heat exchangers, pumps, valves, reactors, and pipelines. In pharmaceutical and pollution control systems, they ensure long-lasting performance and safety. Their ability to resist stress corrosion cracking and function effectively under high temperatures makes them indispensable in critical industrial applications.
The Hastelloy fasteners that are manufactured at Punit Fasteners are packed with a lot of precaution. Every fastener is packed in individual protective material to avoid any damage, rusting or contamination during transportation. Our products include high quality cartons and packaging services that meet your exact needs and specifications. Clear labeling and packing also help in easy identification and handling of the products, which is our way of ensuring that we deliver the best quality products in the best state.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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