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Incoloy 800/800H/800HT stud bolts from Hazlewood Fasteners in Canberra, Australia, are precision-manufactured for superior performance in extreme thermal and corrosive environments. These high-temperature nickel-iron-chromium alloy fasteners are engineered to withstand prolonged exposure to elevated temperatures, thermal cycling, oxidation, carburization, and chloride-induced stress corrosion. The 800H and 800HT grades feature enhanced creep-rupture strength and improved microstructural stability for demanding furnace, petrochemical, and power-generation applications. When industrial operations call for fastening solutions that deliver structural stability, long-term thermal integrity, and resistance to aggressive process media, Incoloy 800-series stud bolts provide unmatched reliability and service security.
Incoloy 800/800H/800HT stud bolts are alloyed with nickel, chromium, and iron, delivering a robust metallurgical profile tailored for elevated-temperature applications. These grades provide excellent oxidation resistance, exceptional scaling resistance, high tensile and creep-rupture strength, and stability under thermal shock and cyclic heating. Variations between 800, 800H, and 800HT primarily relate to controlled carbon content and grain size, optimized for superior high-temperature strength and stress-rupture performance. Their metallurgical consistency ensures dependable preload retention and mechanical stability under sustained furnace, refining, and heat-exchanger stresses.
| 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 stud bolts are widely deployed in heat-treating systems, petrochemical reactors, fired heaters, steam reformers, cracking furnaces, boiler components, gas turbine exhaust systems, superheater assemblies, and high-temperature process piping. They excel in environments containing carburizing gases, oxidizing atmospheres, and chloride-bearing streams where conventional stainless steels fail. Common uses include securing flanges, valves, combustion systems, burner assemblies, pressure vessels, and refinery furnace equipment. When high-temperature durability, metallurgical strength, and corrosion resistance are non-negotiable requirements, Incoloy 800-series stud bolts offer long-term fastening integrity and operational reliability.
At Hazlewood Fasteners, we ensure that our Incoloy 800/800H/800HT stud bolts are packaged with the utmost care to preserve their quality and performance. Each stud bolt is thoroughly inspected and individually wrapped in protective material to prevent damage during transit. They are then packed in sturdy, clearly labeled boxes detailing product specifications and quantities. Our packaging is designed to protect against environmental factors and physical impacts, ensuring that your high-performance stud bolts arrive in excellent 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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