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The Fasteners Mart, located in Mumbai, India, is a leading supplier and exporter of industrial fasteners intended for high-performance and corrosive applications. Focusing on reliability, accuracy, and high-quality materials, the company provides customized fastening solutions to diverse industries globally. Some of its notable products include Hastelloy Nuts, which come in grades like C22, C276, and B2. These nuts, which are produced in hexagonal and heavy hex forms, are made of nickel-molybdenum-chromium alloys, which provide higher corrosion resistance and mechanical strength in severe chemical and temperature environments.
Hastelloy Nuts consist predominantly of Nickel (up to 70%) along with notable proportions of Molybdenum, Chromium, Iron, and trace components such as Cobalt and Tungsten. These materials give them outstanding resistance to pitting, crevice corrosion, and chemical degradation. With a tensile strength of up to 690 MPa and excellent ductility, they perform reliably under high stress and thermal exposure. The density is around 8.9 g/cm³, and they can withstand temperatures exceeding 1000°C, making them perfect for severe industrial environments that require both strength and corrosion resistance.
| 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 are critical in applications where corrosion resistance and mechanical strength are important. Some of the common applications are chemical processing, marine conditions, pollution control systems, nuclear power plant, and aerospace fittings. The nuts are applied to secure components of reactors, heat exchangers, pressure vessels, and high-temperature piping installations. The nuts are especially useful in applications containing harsh oxidizers, acids, and chlorides. Their outstanding durability provides long-term stability and safety in systems under highly aggressive media and mechanical stress.
The Fasteners Mart facilitates timely delivery of Hastelloy Nuts in safe, export-grade packaging. Each nut is wrapped in moisture-resistant packaging or sealed cartons, with bulk orders having the option of wooden crates. Each shipment is accompanied by accurate labeling and documentation to facilitate smooth international shipping and tracing upon delivery.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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