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At Hazlewood Fasteners in Canberra, Australia, our Incoloy 800/800H/800HT bolts are engineered to dominate environments ruled by heat, corrosive chemistry, and relentless mechanical stress. Built for the world’s most demanding high-temperature systems, these bolts ensure steadfast clamping power, oxide resistance, and dimensional stability where conventional alloys fail. Whether reinforcing refinery heaters, petrochemical reformers, thermal processing equipment, or power-generation units, Incoloy 800-series bolts deliver enduring integrity under extreme thermal and chemical punishment. When your installations demand elevated-temperature strength and iron-nickel-chromium excellence, our Incoloy 800/800H/800HT bolts secure mission-critical assemblies with uncompromised metallurgical authority.
Incoloy 800/800H/800HT bolts are composed of an iron-nickel-chromium alloy balanced with controlled carbon and aluminum-titanium reinforcement. This metallurgical profile delivers extraordinary resistance to carburization, oxidation, chloride-induced attack, and high-temperature embrittlement. The 800H and 800HT variants feature refined grain control and higher carbon content for elevated creep strength and long-term stability in hot-service environments. These bolts maintain formidable tensile capacity, secure preload retention, and structural integrity even during severe thermal cycling, ensuring dependable fastening performance across aggressive heat-exposed process conditions.
| 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 deployed in refinery furnaces, petrochemical heaters, heat-treating systems, power-generation boilers, super-heater components, thermal reactors, pressure equipment, and high-temperature exhaust systems. They are vital in catalytic cracker units, hydrogen reforming skids, steam piping, gas-processing plants, and industrial furnaces where thermal stress and chemical corrosion coexist. Perfect for service in reducing, oxidizing, and carbon-rich atmospheres, these bolts secure high-heat structural connections with enduring reliability. When process infrastructure demands unflinching high-temperature fastening security and metallurgical precision, Incoloy 800-series bolts deliver long-life performance in the harshest industrial arenas.
At Hazlewood 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.
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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