Nimonic 80A / EN 2.4952, 2.4631

Nickel Alloy Nimonic 80A / EN 2.4952: Properties, Applications, and Features

✅ General Technical Characteristics

Nickel alloy Nimonic 80A (EN 2.4952) is a heat-resistant nickel-based alloy containing chromium and aluminum, which provides high oxidation and corrosion resistance at elevated temperatures. Due to its properties, the alloy is used in extreme temperature and mechanical load conditions.

Main Characteristics:

• High heat resistance and strength retention at temperatures up to 815°C.
• Excellent oxidation and corrosion resistance in aggressive environments.
• Superior creep strength and thermal fatigue resistance.
• Good machinability and weldability.
• High hardness and dimensional stability when heated.

🔬 Chemical Composition Nimonic 80A / EN 2.4952 (%):

• Nickel (Ni): 69.0 – 75.0
• Chromium (Cr): 18.0 – 21.0
• Carbon (C): ≤ 0.10
• Silicon (Si): ≤ 1.0
• Manganese (Mn): ≤ 1.0
• Titanium (Ti): 1.8 – 2.7
• Aluminum (Al): 1.0 – 1.8
• Residual elements (Fe, Cu, S, P): ≤ 1.0

💡 The combination of chromium, titanium, and aluminum enhances the alloy’s heat resistance and durability.

🏭 Applications

Nimonic 80A (EN 2.4952) is widely used in high-temperature environments requiring increased strength and oxidation resistance.

Main Application Areas:

• Aerospace and aviation industry (turbine blades, engine components, exhaust systems).
• Energy sector (gas turbines, heat exchangers, generators).
• Automotive industry (engine components, exhaust valves).
• Metallurgical industry (die casting molds, heating elements).
• Chemical industry (reactors, high-temperature pipelines).

📊 Mechanical Properties

• Tensile Strength (Rm): 900 – 1200 MPa
• Yield Strength (Rp0.2): ≥ 600 MPa
• Hardness (HB): 250 – 320 HB
• Elongation (A5): ≥ 20 %
• Operating Temperature: up to 815°C

⭐ Features

• High heat resistance – retains mechanical properties under extreme temperatures.
• Corrosion resistance – performs well in aggressive gaseous environments.
• Strength and stability – withstands high-pressure and high-temperature conditions.
• Good weldability – suitable for various welding methods.
• Durability – maintains its properties under prolonged loads.

This alloy is an ideal choice for applications requiring high heat resistance, mechanical stability, and corrosion resistance.

Nimonic 80A Delivery Forms