UNS N09901/Incoloy 901/2.4462/2.4975/Nimonic901‌/1.4898 Nut For Aerospace And

Product Specification

UNS N09901/Incoloy 901/2.4462/2.4975/Nimonic901‌/1.4898 Nut For Aerospace And Power Generation Applications

UNS N09901 (Incoloy 901) is a nickel-iron-chromium alloy with titanium and aluminum additions, offering excellent high-temperature strength and oxidation resistance. It is widely used in aerospace, gas turbines, and high-stress environments requiring exceptional creep and fatigue resistance. Nuts made from this material, including grades 2.4462, 2.4975, Nimonic 901, and 1.4898, provide superior mechanical stability, corrosion resistance, and prolonged service life under extreme conditions. These fasteners are ideal for jet engines, power plants, and automotive turbochargers. Their high tensile strength and resistance to thermal expansion make them a preferred choice for critical applications where durability and precision are paramount. Compliance with AMS 5660, ASTM B637, and DIN standards ensures reliability and performance in demanding engineering applications.

Key Features of UNS N09901 / Incoloy 901 / 2.4462 / 2.4975 / Nimonic 901 / 1.4898 Nuts

Nuts made from UNS N09901 (Incoloy 901, 2.4462, 2.4975, Nimonic 901, 1.4898) are designed for high-performance applications, especially in aerospace, power generation, and high-temperature environments. Here are the key features:

1. High-Temperature Strength

• Maintains mechanical strength at temperatures up to 600–700°C (1112–1292°F).

• Suitable for gas turbines, jet engines, and power plants.

2. Excellent Corrosion & Oxidation Resistance

• High resistance to oxidation and corrosion in extreme environments.

• Performs well in oxidizing and carburizing atmospheres.

3. Precipitation Hardening for Enhanced Strength

• Strengthened by aluminum (Al) and titanium (Ti) precipitation hardening.

• Offers high tensile strength and excellent fatigue resistance.

4. Superior Creep & Stress Rupture Resistance

• Withstands long-term exposure to high stress at elevated temperatures.

• Ideal for turbine blades, exhaust systems, and other heat-resistant fasteners.

5. Good Fabrication & Machinability

• Can be hot or cold worked for precision engineering applications.

• Can be welded using standard nickel-based alloy techniques.

The UNS N09901 (Incoloy 901 / 2.4462 / 2.4975 / Nimonic 901 / 1.4898) alloy is a high-strength, corrosion-resistant nickel-iron-based superalloy. It is primarily used in high-temperature and high-stress applications due to its excellent mechanical properties, oxidation resistance, and creep resistance.

Applications of UNS N09901 / Incoloy 901 / Nimonic 901 Nuts:

• Aerospace & Jet Engines:

Fasteners in gas turbines and jet engines due to high-temperature stability.

Turbine discs, shafts, and casings where high mechanical strength is required.

• Power Generation:

Used in industrial gas turbines and power plants.

High-strength nuts for steam and gas turbine components.

• Automotive & Racing Industry:

Turbocharger and exhaust system fasteners in performance and racing engines.

Used in high-performance vehicles requiring heat and stress resistance.

• Petrochemical & Chemical Processing:

Fasteners for heat exchangers, reactors, and furnaces operating under extreme conditions.

Nuts and bolts in high-temperature piping systems.

• Marine & Offshore Applications:

High-strength fasteners for naval propulsion systems.

Components in offshore oil and gas drilling platforms where corrosion resistance is essential.

• Nuclear & Energy Industry:

Used in nuclear reactors due to excellent oxidation and creep resistance.

Structural fasteners in high-temperature environments.

Why Use UNS N09901 Nuts?

✔ High-temperature strength (up to 650°C / 1200°F)
✔ Oxidation and corrosion resistance
✔ Excellent fatigue and creep resistance
✔ Long service life in extreme environments

These nuts are crucial in applications where standard stainless steel or conventional alloys fail due to heat, stress, or oxidation exposure.