Jyoti Steels is a well-established manufacturer and exporter of Hastelloy Fasteners with its presence in Mumbai, India. Famed for supplying high-performance fastening solutions, the company deals in supplying corrosion-resistant fasteners to cater to the needs of mission-critical industrial applications. Having decades of experience in the industry, Jyoti Steels caters to industries including chemical processing, marine, power generation, and aerospace. Their Hastelloy Fasteners are carefully engineered to survive harsh environments, providing enhanced durability, mechanical strength, and global standard compliance, making them a reliable option for customers looking for dependable fastening solutions in aggressive service environments.
Chemical Composition, Mechanical and Physical Properties:
Hastelloy Fasteners, especially of grade C22, consist of around 56% Nickel, 20–22.5% Chromium, 12.5–14.5% Molybdenum, 2–6% Iron, and 2.5–3.5% Tungsten with small additions of Cobalt (up to 2.5%) and Manganese (up to 0.5%). They provide a tensile strength of around 690 MPa, yield strength of 283 MPa, and 45% elongation. The density of these fasteners is 8.69 g/cm³ and melting range is 1350–1400°C. Renowned for outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, Hastelloy fasteners have outstanding performance in oxidizing as well as reducing chemical 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 Jyoti Steels, we take pride in being the largest supplier, exporter, and manufacturer of Hastelloy Fasteners in Mumbai, India, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the India, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Hastelloy Fasteners find widespread application in fields where utmost corrosion resistance and structural integrity are required. In chemical process plants, they retain parts subject to aggressive acids and severe chemicals. In the marine and offshore industries, they find applications in saltwater exposures where conventional metals do not stand the test. Defense and aerospace industries depend on them for high-temperature and corrosive environment fastening systems. Power plants and refineries employ them in reactors, boilers, and high-pressure equipment. Pharmaceutical and food processing units also employ them for hygienic and corrosion-resistant assembly to provide long-lasting, safe, and stable operations.
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