Nimonic 80A: Complete Properties & Application Guide

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Overview

Nimonic 80A (UNS N07080 / W.Nr. 2.4952) is a nickel-chromium alloy with titanium and aluminum additions that provides precipitation hardening through gamma prime formation. It offers excellent creep resistance and high-temperature strength up to 815°C, making it ideal for gas turbine components.

Chemical Composition

The chemical composition of Nimonic 80A is carefully controlled to achieve its unique combination of properties and performance characteristics.

Element	Min %	Max %
Nickel (Ni)	59.0	Balance
Chromium (Cr)	18.0	21.0
Cobalt (Co)	—	2.0
Titanium (Ti)	1.80	2.70
Aluminum (Al)	1.00	1.80
Iron (Fe)	—	3.0
Carbon (C)	—	0.10
Silicon (Si)	—	1.0

Mechanical Properties at Room Temperature

The mechanical properties of Nimonic 80A vary depending on product form and heat treatment condition. The data below represents typical values for solution-annealed material.

Property	Value
Tensile Strength	1030 MPa
Yield Strength (0.2% offset)	620 MPa
Elongation in 2 inches	25%
Density	8.19 g/cm3
Melting Point	1370 °C
Max Service Temperature	815 °C

Corrosion Resistance

Good oxidation resistance at elevated temperatures up to 815°C. Resistant to hot corrosion in gas turbine environments. The chromium content provides a protective oxide scale that resists spalling under thermal cycling.

Applications

The unique combination of properties makes Nimonic 80A suitable for a wide range of demanding applications:

• Gas Turbines: Turbine blades, discs, and nozzles in gas turbine engines.
• Aerospace: Engine components operating at high temperatures and stresses.
• Power Generation: Blades and vanes for land-based gas turbines.
• Automotive: Turbocharger components and exhaust valves.
• Fasteners: High-temperature bolts and fasteners for critical applications.

Available Product Forms

Hangbo Alloy Group manufactures and supplies Nimonic 80A in the following product forms, conforming to ASTM, AMS, and ASME specifications:

• Round Bars: Diameters from 6 mm to 300 mm, hot-finished or cold-drawn, solution annealed.
• Seamless Tubes & Pipes: Sizes from 6 mm OD to 219 mm OD, various wall thicknesses.
• Plates & Sheets: Thicknesses from 0.5 mm to 50 mm, hot-rolled or cold-rolled.
• Forgings: Custom flanges, rings, discs, and complex shapes per customer drawing.
• Welding Wire: Diameters 0.8 mm to 5.0 mm, precision-wound coils and spools.

Related Standards

Standard	Description
BS HR1	British Standard Bar
BS HR201	British Standard Forgings
ASTM B637	Forgings
AMS 5539	Sheet and Strip
AMS 5706	Bar and Forging
DIN 17742	German Standard

Contact Us for Nimonic 80A

Hangbo Alloy Group maintains extensive inventory of Nimonic 80A in all standard product forms. We can provide mill test certificates, third-party inspection reports (SGS, TUV), and custom processing services.

For quotations, material certifications, or technical consultation, contact our sales team or call +86-136-1165-6360. We typically respond within 10 minutes.