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Punit Fasteners is a reliable supplier and manufacturer of Incoloy 800, 800H, and 800HT Bolts in Delhi, India. These high-performance bolts are made from iron-nickel-chromium alloys, designed to resist high temperatures and oxidation. Each grade, 800, 800H, and 800HT, has different levels of carbon and aluminum/titanium that improve strength and creep resistance. Manufactured according to ASTM B408/B564 standards, these bolts are perfect for heat exchanger parts, refinery equipment, and power plant assemblies. Punit Fasteners guarantees precise threading, accurate dimensions, and corrosion resistance for tough industrial fastening needs.
Incoloy 800 series bolts contain about 30–35% nickel, 19–23% chromium, and iron as the base element, with controlled amounts of carbon, aluminum, and titanium. Incoloy 800H and 800HT variants have more carbon and aluminum/titanium for better strength at high temperatures. These bolts have a tensile strength of 500–700 MPa and yield strength of 200–350 MPa, depending on the grade and heat treatment. They show excellent oxidation resistance, good creep-rupture strength, and stability at temperatures up to 1100°C, making them suitable for high-temperature and pressure situations.
| 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 |
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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 |
– |
– |
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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 800/800H/800HT Bolts are used in high-temperature settings like petrochemical refineries, thermal power plants, and nuclear facilities. They secure components in heat exchangers, reformers, superheaters, and pressure vessels that face extreme thermal cycling. These bolts are also found in industrial furnaces, boiler parts, and catalytic cracker units. Thanks to their resistance to carburization and oxidation, they are perfect for hydrocarbon processing and exhaust systems. Incoloy 800 series bolts provide long-lasting durability and mechanical strength in high-temperature applications that require high stress tolerance and corrosion resistance in various atmospheres.
At Punit Fasteners, our Incoloy 800/800H/800HT bolts are carefully installed to ensure they arrive in the best possible condition. Each bolt is individually inspected and carefully wrapped with protective coatings to prevent damage during transport. The locks are then placed in permanently labeled boxes clearly labeled with product details and quantities. Our packaging is designed to protect against environmental and physical impacts, ensuring that our high quality fasteners meet your needs during delivery.
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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