Incoloy Screws are top-notch fastening components made from nickel-iron-chromium alloys, specifically crafted to handle extreme temperatures, harsh chemicals, and significant mechanical stress. They’re celebrated for their outstanding resistance to oxidation, carburization, and sulfidation, making them perfect for tough industrial settings. These screws maintain impressive structural stability even in high-temperature situations, which is why they’re commonly used in chemical processing, petrochemical refining, power generation, and heat treatment equipment. Their remarkable durability and strength guarantee secure fastening in environments exposed to acids, seawater, and high-pressure conditions. You’ll find these screws in critical machinery, furnace components, pipelines, and industrial assemblies where reliability is key.
Incoloy Screws are generally made up of nickel, iron, and chromium, with additional elements like molybdenum, titanium, copper, and niobium depending on the specific grade. This alloy composition provides excellent strength at high temperatures, along with impressive resistance to oxidation and corrosion in both acidic and alkaline settings. Incoloy remains stable during thermal cycling and is resistant to stress-corrosion cracking and creep. The screws boast high tensile and yield strength, ensuring they can withstand extreme operational conditions. These mechanical and chemical properties make Incoloy Screws perfect for heavy-duty, heat-intensive, and chemically aggressive applications.
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| ASTM | ASTM F2281, ASTM F468M, ASTM F468 UNS N08825, ASTM F467 |
| Incoloy Washers Sizes |
Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric Incoloy Fasteners |
| Alloy 825 Bolts Size Metric |
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| Incoloy Hex Bolts Size Inch |
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| Standard | Manufacturer of Incoloy Washers as per IS, ANSI, ASTM, DIN, ISO, JIS, GB, ASME, BS, UNI, CSN, EU, IFI, PN, and all International Standards
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Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
Incoloy Fasteners | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa –205 | 30 | – | – |
Grade | C | Mn | Si | Fe | S | Cr | Al-Ti | Ni | |
Incoloy Fasteners | min. | – | – | – | 39.5 | – | 19.0 | 0.15 | 30.0 |
Incoloy Screws are extensively utilized in industries where equipment needs to endure high temperatures, corrosive chemicals, and heavy loads. In chemical and petrochemical plants, they secure components in reactors, heat exchangers, boilers, and furnace systems. The oil and gas industry relies on them for downhole tools, pipelines, and high-pressure processing equipment. Power generation facilities depend on Incoloy Screws for gas turbines, superheaters, and other critical components. Their ability to perform reliably in such demanding environments makes them a go-to choice for engineers and manufacturers looking for dependable fastening solutions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
