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At Hazlewood Fasteners, we manufacture and supply high-quality Incoloy Nuts in Canberra, Australia, designed for exceptional performance in extreme environments where strength, corrosion resistance, and durability are vital. Made from a nickel-iron-chromium alloy, these nuts provide outstanding resistance to oxidation, carburization, and chemical corrosion, even at elevated temperatures. Known for their superior mechanical stability, Incoloy Nuts are ideal for applications that demand reliability under thermal stress and harsh operating conditions. Whether used in chemical plants, power generation, or marine systems, our Incoloy Nuts ensure secure fastening, longevity, and consistent performance in every application.
Incoloy Nuts are composed primarily of nickel (30–45%), iron, and chromium, with additions of molybdenum, copper, titanium, and aluminum, depending on the grade (such as Incoloy 800, 825, or 925). This composition provides excellent resistance to oxidation, sulfidation, and aqueous corrosion. With a tensile strength between 550–750 MPa and strong creep resistance, these nuts retain their structural integrity at temperatures up to 1100°C. They offer excellent formability, weldability, and resistance to stress-corrosion cracking, making them an ideal choice for high-pressure and high-temperature fastening applications.
| Grades |
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| ASTM | ASTM F2281, ASTM F468M, ASTM F468 UNS N08825, ASTM F467 |
| Incoloy Fasteners Sizes |
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| Alloy 825 Bolts Size Metric |
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| Incoloy Hex Bolts Size Inch |
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| Standard | Manufacturer of Incoloy Fasteners 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 |
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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 |
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.
Incoloy Nuts are widely used across chemical processing plants, petrochemical refineries, marine environments, and power generation systems. They perform exceptionally well in equipment exposed to high heat, acids, seawater, and flue gases. In oil and gas refineries, these nuts secure joints in piping systems, heat exchangers, and pressure vessels, ensuring long-term reliability. They are also utilized in industrial furnaces, superheaters, and steam boilers where thermal resistance is essential. Designed for performance and endurance, Hazlewood Fasteners’ Incoloy Nuts provide a dependable fastening solution that outlasts conventional alloys in the most demanding applications.
We take extra care to pack our Incoloy nuts at Hazlewood Fasteners. Every nut is then covered with protective materials to ensure that they do not get damaged, corroded or contaminated during transportation. Some of our packaging products are cartons and we also provide packaging solutions that meet your unique requirements. The labeling and packing methods make it easy to identify and handle the products, which is a sign that we provide quality products in good condition.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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