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.
Nimonic 75 and Nimonic 80A Comparison
| 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.
Our product range
| Product Form | Standard Specifications | Typical Sizes / Dimensions | Common Standards (Examples) |
|---|---|---|---|
| Sheet & Plate | Thickness: 0.5mm – 50mm Width: 1000mm – 2000mm Length: 2000mm – 6000mm |
• Coils / Strips • Cut-to-Length Sheets • Heavy Plates |
ASTM B168, B906 ASME SB168 EN 10095, DIN 17752 |
| Bar & Rod | Diameter: 6mm – 300mm Length: 3000mm – 6000mm (straight) |
• Round Bars • Hexagonal Bars • Square Bars • Forging Billets |
ASTM B166 (rod/bar) ASTM B564 (forgings) |
| Pipe & Tube | Seamless Pipe: OD 6mm – 300mm, SCH 5S to XXS Welded Tube: OD 10mm – 500mm, Wall as required Heat Exchanger Tube: OD 12.7mm – 50mm |
• Hydraulic & Instrumentation Tubing • Boiler & Heat Exchanger Tubes • Mechanical Tubing |
ASTM B167, B163, B517/B75 ASTM B622 (seamless) ASTM B619/B626 (welded) |
| Fittings & Flanges | Class: 150 LBS to 2500 LBS Schedules: Matching pipe specifications |
• Elbows (90°/45°) • Tees, Reducers, Caps • Socket Weld & Butt-Weld Fittings • Slip-On & Weld Neck Flanges |
ASTM SB366 ASME B16.9 / B16.5 MSS-SP-43 / SP-75 |
| Wire & Electrodes | Diameter: 0.5mm – 5.0mm (Wire) Standard Sizes (Covered Electrodes) |
• Welding Wire (spool, coil) • Filler Metal Rods • SMAW Electrodes |
AWS A5.14 / A5.11 EN ISO 18274 / 14172 |
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Our factory
Our factory is equipped with state-of-the-art production facilities. The facility features advanced melting and thermo-mechanical processing lines, including Vacuum Induction Melting (VIM) furnaces and precision rolling mills, which transform raw materials into high-performance alloy products in forms such as plates, sheets, tubes, and bars. To ensure that every product meets the most stringent international standards and customer drawing requirements, we operate an in-house laboratory with comprehensive testing capabilities. Testing includes spectrometric chemical analysis, mechanical property testing, and non-destructive testing (NDT) methods such as ultrasonic and penetrant inspection. Governed by a certified quality management system, our integrated production process-from raw materials to finished products-ensures full traceability and consistent quality assurance.
