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Introducing GIC Fasteners, the one-stop destination for premium Incoloy 800H/800HT nuts. One of the industry's top manufactures, we specialize in making nuts that meet a number of international standards, such as BS, DIN, ASTM, and ISO. Our specialty is making nuts that perform well in corrosive and high-temperature conditions, satisfying the exacting demands of the petrochemical and aerospace sectors, among others. GIC Fasteners is the reliable supplier of premium Incoloy 800H/800HT nuts, offering unparalleled performance and dependability, thanks to their unwavering dedication to accuracy and longevity.
Strong enough to withstand oxidation and carburization at high temperatures, Incoloy 800H/800HT nuts are a great option for high-stress applications including heat-treating machinery, power generating, and petrochemical processing. Because of their unique engineering, these nuts can withstand extended exposure to extremely high temperatures and still function properly, guaranteeing reliable and safe connections in demanding situations. Top-notch Incoloy 800H/800HT nuts that satisfy the strictest industry standards are available from GIC Fasteners, providing unmatched quality for your particular project requirements.
For all of your Incoloy 800H/800HT nut needs, choose GIC Fasteners and take advantage of our experience and dedication to quality. Our staff is committed to helping you locate the ideal fasteners to satisfy your precise requirements and application needs. Send us an email at sales@gicfasteners.com to receive a price and for individualized assistance. Let GIC Fasteners be your go-to supplier for reliable, high-performance fasteners that will last a lifetime.
| Specifications | : | ASTM B 408 ASME SB 408 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Grade | C | Mn | Si | Fe | S | Cr | Al-Ti | Ni | |
| 800H | min. | 0.05 | – | – | 39.5 | – | 19.0 | 0.15 | 30.0 |
| max. | 0.1 | 1.5 | 1.0 | – | 0.015 | 23.0 | 0.60 | 35.0 | |
| 800HT | min. | 0.06 | – | – | 39.5 | – | 19.0 | 0.85/0.25 | 30.0 |
| max. | 0.1 | 1.5 | 1.0 | – | 0.015 | 23.0 | 1.20/0.60 | 35.0 | |
| 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 | ||||
| 800-H-HT | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa –205 | 30 | – | – |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
| Incoloy 800H | 1.4958 / 1.4876 | N08810 | NCF 800H | NA 15(H) | ЭИ670 | Z8NC33-21 | X5NiCrAlTi31-20 | XH32T |
| Incoloy 800HT | 1.4859 / 1.4876 | N08811 | NCF 800HT | NA 15(HT) | ЭИ670 | – | X8NiCrAlTi32-21 | XH32T |
| Size | Heavy Hex | Finished Hex | Square | Heavy Square | Finished Jam |
| 5⁄8“ Nut | 11.9 | 7.33 | 10.8 | 14.3 | 4.93 |
| 1⁄2“ Nut | 6.54 | 3.75 | 5.78 | 7.87 | 2.62 |
| 7⁄8“ Nut | 29.7 | 19.0 | 24.5 | 36.2 | 12.0 |
| 3⁄4“ Nut | 19.3 | 11.9 | 15.4 | 23.5 | 7.70 |
| 11⁄8“ Nut | 59.2 | 40.3 | 52.5 | 72.4 | 24.7 |
| 11⁄4“ Nut | 78.6 | 54.3 | 70.6 | 95.5 | 36.1 |
| 1″ Nut | 42.5 | 28.3 | 36.3 | 51.5 | 17.6 |
| 11⁄2“ Nut | 131 | 94.3 | 122 | 161 | 60.9 |
| 13⁄8“ Nut | 102 | 73.0 | 94.5 | 125.0 | 47.9 |
| 13⁄4“ Nut | 204 | 151 | 100 | ||
| 15⁄8“ Nut | 162 | ||||
| 2″ Nut | 299 | 224 | 140 | ||
| 17⁄8“ Nut | 241 | ||||
| 21⁄2“ Nut | 564 | ||||
| 21⁄4“ Nut | 419 | ||||
| 4″ Nut | 2180 | 1200 | |||
| 3″ Nut | 950 | ||||
| 23⁄4“ Nut | 738 | ||||
| 31⁄2“ Nut | 1526 | ||||
| 31⁄4“ Nut | 1194 | ||||
| 33⁄4“ Nut | 1812 |
| Applications | Industries |
|---|---|
| Heat exchangers | Petrochemical |
| Furnace components | Power Generation |
| High-temperature process piping | Chemical Processing |
| Thermal processing equipment | Heat Treatment |
| Steam generators | Energy Production |
| Catalytic crackers | Refining |
| Hydrocarbon cracking | Oil and Gas |
| Pressure vessels | Manufacturing |
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Incoloy 800H/800HT is a nickel-iron-chromium alloy renowned for its high temperature and corrosion resistance. These alloys are often used in applications where exposure to elevated temperatures and aggressive environments is common.
Incoloy 800H has a controlled carbon content optimized for high-temperature strength, while 800HT offers superior creep and stress rupture properties due to its higher creep-rupture strength. The choice between them depends on the specific application requirements.
Incoloy 800H/800HT Nuts offer exceptional resistance to oxidation, carburization, and nitridation in high-temperature settings. They maintain their mechanical properties and structural integrity even in extreme environments.
These nuts find applications in industries such as petrochemical, chemical processing, power generation, and heat-treating, where elevated temperatures and corrosive atmospheres are prevalent.
Yes, these nuts demonstrate good corrosion resistance in aqueous environments, especially in conditions with sulfur-containing atmospheres. However, their corrosion resistance might differ based on factors like temperature and concentration.
Incoloy 800H can handle temperatures up to 1100°C (2010°F), while 800HT offers even better performance up to 1150°C (2100°F), making them ideal for high-temperature applications.
Incoloy 800H/800HT Nuts play a vital role in improving energy efficiency in industries like power generation by withstanding high temperatures and maintaining structural integrity, reducing downtime and the need for frequent replacements.
Absolutely, the exceptional heat resistance and corrosion resistance of these alloys make them candidates for use in advanced nuclear reactors, contributing to safer and more efficient nuclear energy generation.
Beyond industrial use, these alloys can be creatively incorporated into sculptures and architectural elements exposed to extreme outdoor conditions, thanks to their longevity and corrosion resistance.
