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Poang Fasteners stands out as a top-notch manufacturer and supplier of Hastelloy C276 Bolts, providing high-performance fastening solutions for industries that face extreme conditions. These bolts are renowned for their exceptional corrosion resistance, crafted from Hastelloy C276, a superalloy specifically engineered to endure aggressive chemicals and harsh environments. With their precise threading, accurate dimensions, and remarkable durability, Hastelloy C276 bolts guarantee secure fastening in critical applications. Based in Vietnam, Poang Fasteners is dedicated to delivering products that adhere to international quality standards, making them a reliable choice for demanding industrial projects around the globe.
Hastelloy C276 Bolts are primarily made up of nickel, molybdenum, and chromium, with trace amounts of tungsten and iron, creating a unique blend of strength and corrosion resistance. This special composition provides outstanding protection against both oxidizing and reducing agents, along with strong resistance to pitting, crevice corrosion, and stress corrosion cracking. Mechanically, these bolts offer high tensile strength, toughness, and stability, even in high-temperature and chemically aggressive settings. Their sturdy structure and durable zinc-free alloy make them ideal for industries where standard fasteners simply can’t hold up against stress and corrosion.
| 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 C276 Bolts | 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 C276 Bolts | 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 bolts are essential in applications requiring resistance to harsh environmental conditions and exceptionally strong chemicals. It is widely used in the chemical industry, petrochemical plants, and marine applications where common corrosive agents occur. The high resistance to oxidation and stress corrosion cracking makes them ideal for air space, power generation and industrial equipment applications. These bolts ensure reliable performance and durability under extreme conditions, contributing to the safety and efficiency of critical systems and structures.
You’ll find Hastelloy C276 Bolts widely used in the chemical and petrochemical sectors, especially in reactors, scrubbers, evaporators, and heat exchangers that are exposed to harsh acids and solvents. In marine and offshore applications, they provide secure fastening that stands up to seawater and brine corrosion. These bolts are also essential in power plants, flue gas desulfurization systems, pulp and paper industries, and waste treatment facilities. Their ability to perform reliably under extreme temperatures and highly corrosive conditions makes Hastelloy C276 bolts a must-have for critical fastening needs in heavy engineering and industrial applications.
Poang Fasteners is a leading manufacturer and supplier of high-quality fasteners in Da Nang, Vietnam, with over 8 years of experience serving global industries.
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