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Punit Fasteners is a well-respected manufacturer and supplier of Incoloy Nuts, proudly based in Delhi, India. We specialize in providing top-notch fastening solutions designed for the toughest industrial environments. Our reputation for delivering high-performance, corrosion-resistant fasteners is well-earned, as we produce Incoloy nuts that adhere to international quality standards. These nuts serve a variety of industries, including chemical processing, power generation, marine, and aerospace. Each Incoloy nut is precision-engineered to ensure durability, high-temperature resistance, and outstanding mechanical strength. Thanks to our advanced production technology, rigorous quality control, and unwavering commitment to customer satisfaction, Punit Fasteners has built a solid reputation both in India and in international markets for supplying reliable and long-lasting specialty fasteners.
Incoloy Nuts are crafted from nickel-iron-chromium alloys, with specific grades like Incoloy 800 and 825 providing tailored resistance to heat, oxidation, and corrosion. Typically, the composition includes about 30–46% nickel and 19–23% chromium, along with varying amounts of molybdenum, copper, and titanium, depending on the grade. These nuts maintain impressive mechanical properties even at high temperatures, with tensile strengths ranging from 500 to 750 MPa. They also exhibit strong resistance to carburization, sulfidation, and aqueous corrosion. Their performance remains stable in high-pressure and high-temperature settings, making them ideal for critical operations in harsh chemical environments.
| 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 find extensive use in applications where exceptional corrosion resistance and high-temperature performance are essential. They are commonly utilized in industries such as petrochemical plants, nuclear power stations, heat exchangers, offshore drilling rigs, and marine environments. These nuts are perfect for fastening components that come into contact with acids, seawater, and oxidizing agents. For example, Incoloy 800 series nuts are often used in furnace hardware, superheaters, and process piping, while Incoloy 825 nuts are preferred for applications involving sulfuric and phosphoric acid. Their durability and strength make them a go-to choice for demanding environments.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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