Choose Nimonic 75 Or Nimonic 80A Nickel Alloy?
Dec 05, 2025
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Current Status of the Nimonic Materials Market
Have you ever struggled to choose between Nimonic 75 and Nimonic 80A? After rounds of inquiries, have you found that Nimonic series alloys are rarely available in the market? Or that custom orders require higher minimum order quantities? These are just some of the "difficult problems" you may be facing.
This is because Nimonic series alloys are relatively rare in the global market, belonging to a "niche material." This is mainly because it belongs to the first generation of nickel-based superalloys, and its performance has now been surpassed by newer materials. Its market share has been taken over by more advanced grades such as Inconel 718 and powder metallurgy/single crystal alloys. However, it is still commonly used in certain applications.
The Lork Group has ample stock of Nimonic series alloys and possesses easy machining capabilities. It also uses these resources for ISO and CE certifications, market development, and customer accumulation.
Lork Group's Nimonic 75 and Nimonic 80A
Here we first provide you with information on two product lines from the Lork Group: Nimonic 75 and Nimonic 80A. You can click to view detailed information or contact us for pricing and specifications.
Nimonic 75 Alloy
We supply Nimonic 75 nickel alloy in the form of bars, plates, tubes, coils, strips, wires, forgings, and more.
Nimonic 80A Alloy
We supply Nimonic 80A nickel alloy in the form of bars, plates, tubes, coils, strips, wires, forgings, and more.
Nimonic 75 and Nimonic 80A Comparison
To help you understand quickly, the table below compares the differences between the Nimonic 75 and the Nimonic 80A:
| Characteristic Dimensions | Nimonic 75 (UNS N06075) | Nimonic 80A (UNS N07080) |
| Core Positioning | Solid solution strengthened nickel-chromium-based alloys, emphasizing comprehensive performance and processability. | Precipitation hardening nickel-chromium-based alloys, specifically designed for higher temperatures and strengths. |
| Strengthening Mechanism | The primary strengthening mechanism is through solid solution treatment with elements such as chromium and titanium, resulting in limited strength gains. | The key to a significant performance leap lies in precipitation hardening by adding aluminum and titanium to form a γ' strengthening phase (Ni₃(Al, Ti)). |
| Key chemical components | Nickel (Ni): ~76% (balance) Chromium (Cr): 18-21% Titanium (Ti): 0.2-0.6% Aluminum (Al): ≤0.5% |
Nickel (Ni): ~70% (balance) Chromium (Cr): 18-21% Titanium (Ti): 1.8-2.7% Aluminum (Al): 1.0-1.8% |
| Maximum operating temperature | ~ 800-900°C. | ~ 815-1000°C (long-term/short-term). |
| Mechanical Properties | Tensile Strength: ~690-750 MPa Elongation: ~20-31% |
Tensile Strength: ≥750-1000 MPa Elongation: ~20-30% |
| Machinability and Weldability | Good. Wide working window (1220-950°C), excellent weldability, and easy to manufacture. | Decent but more complex. Narrow working window (approximately 1050-1200°C); solution treatment followed by aging is required for optimal performance. |
Procurement and Selection Recommendations
- Choose NIMONIC 75 if: your components require good overall performance, operate at temperatures below 800°C, and have high requirements for manufacturing costs and ease of machining/welding. Examples include feed trays, fixtures, and high-temperature bolts for industrial furnaces.
- Choose NIMONIC 80A if: your components are critical hot-end parts, operate at temperatures above 800°C, and withstand high stress, where performance and reliability are paramount. Examples include turbine blades and turbine disks for aero-engines or high-efficiency gas turbines.
In general, the choice of material depends on your trade-offs regarding temperature, strength, cost, and machining difficulty. If you can provide the specific operating temperature, stress conditions, and budget range of the target components, we can provide you with a more tailored analysis.
How To Cooperate With Us?
If you want to know more about the spot specifications of products or need customized products, get a quick quote, etc., please contact us!
Our address
Erqi District, Zhengzhou City, Henan Province, China
Phone Number
(86)-19937075488
susan@lorkgroup.com

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