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Hastelloy stud bolts are available at Punit Fasteners which is well known for its quality products that can perform well in harsh conditions. These stud bolts are manufactured from Hastelloy alloys which are basically nickel-molybdenum based and are well known for their high tensile strength and corrosion resistance. Designed for chemical processing, aerospace, high temperature industries, our Hastelloy stud bolts provide consistent and sound fastening in extreme conditions.
Punit Fasteners from Delhi, India, is a leading manufacturer and supplier of high-grade Hastelloy Stud Bolts. Their stud bolts are renowned for their outstanding corrosion resistance and durability and thus find widespread application in aggressive and high-temperature conditions. Hastelloy alloys, particularly grades such as C-22, C-276, and B-2, have been designed to operate under exposure from strong acids, chlorides, and oxidizing agents. At Punit Fasteners, we guarantee accurate manufacturing standards, rigorous quality control, and customized packaging solutions. Our Hastelloy stud bolts are reliable in high-performance industries such as aerospace, chemical processing, marine, and energy—offering performance, reliability, and longevity under harsh operating conditions.
| 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 stud bolts are largely made of nickel, molybdenum, chromium, iron, and cobalt, with the specific ratio dependent on the grade (e.g., C-276, C-22, B-2). This alloy boasts superb resistance to reducing and oxidizing conditions, pitting, stress corrosion cracking, and crevice corrosion. These bolts have high tensile strength (even up to 690 MPa), excellent ductility, and thermal stability at a wide temperature range. Their mechanical strength and resistance to corrosion render them very suitable for application in high-pressure, high-temperature, and chemically aggressive service where failure can not be tolerated.
Hastelloy stud bolts find extensive application in chemical processing facilities, where they are subject to hydrochloric acid, sulfuric acid, and chlorine compound exposures with ease. In the aerospace sector, they provide safe-fastening solutions for high-pressure and high-temperature assemblies. The oil and gas industry uses them for their mission-critical parts exposed to corrosive environments, and marine engineering incorporates them into saltwater-exposed structures. They are further utilized in power generation, drug manufacturing, and pulp & paper applications, where operational reliability, resistance to corrosion, and mechanical strength are requisites for long-term operational safety and efficiency.
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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