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Hastelloy C276 Fasteners are top-notch, corrosion-resistant fasteners designed to thrive in the most challenging chemical and industrial settings. Made from Hastelloy C276, which is a unique blend of nickel, molybdenum, chromium, and iron, these fasteners boast remarkable resistance to both oxidizing and reducing agents, as well as pitting and stress corrosion cracking. Suppliers in Hamilton, New Zealand, like Aria Fasteners, guarantee precise threading, consistent dimensions, and compliance with international quality standards. These fasteners are perfect for securing flanges, pressure vessels, pipelines, and machinery where outstanding corrosion resistance and mechanical strength are essential for long-lasting reliability and safety.
The composition of Hastelloy C276 Fasteners is primarily nickel, enriched with significant amounts of molybdenum, chromium, iron, and tungsten, which together provide exceptional chemical resistance. On the mechanical side, they deliver high tensile strength, toughness, and stability under heavy loads and high temperatures. Their distinctive alloy composition ensures they resist localized corrosion, crevice corrosion, and stress corrosion cracking, making them ideal for use in chemical, petrochemical, marine, and pharmaceutical sectors where traditional stainless steels or carbon steels might not hold up.
| 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 % |
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Hastelloy C276 Fasteners are widely used in applications requiring exceptional corrosion resistance and durability. They are ideal for chemical plants, petrochemical refineries and marine environments where exposure to complex chemicals and high temperatures is common These binders are also used in wind, aerospace and power generation, where their resistance to oxidation and corrosion is very important. Their reliability and capability make them suitable for critical applications in equipment and machinery in harsh environments.
You’ll find Hastelloy C276 Fasteners commonly used in chemical processing plants, desalination systems, offshore platforms, power generation facilities, and marine installations. They excel at securing flanges, pipelines, heat exchangers, pressure vessels, and critical machinery that come into contact with highly corrosive chemicals, chlorides, or oxidizing agents. These fasteners help maintain joint integrity, prevent loosening, and ensure long-term durability even in extreme environments. Additionally, Hastelloy C276 Fasteners are utilized in pharmaceutical, food processing, and specialized industrial applications, merging superior mechanical strength with reliability.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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