Nimonic 86 Plates | Alloy 86 for Extreme Thermal Cycling
Table of Contents:
When a Middle East combined‑cycle plant saw its gas‑turbine combustion liners fail every 10,000 hours from oxide scaling and thermal‑fatigue cracking at 1050°C, metallurgical analysis showed conventional alloys losing section thickness and spalling scale with each start‑stop cycle causing forced outages that cost millions per year in lost power and penalties. After the OEM upgraded the hot‑end liners and shrouds to Nimonic 86 Plates, a solid‑solution nickel‑chromium‑molybdenum alloy with cerium and magnesium, cyclic oxidation resistance at 1050°C improved so dramatically that inspection intervals stretched beyond 30,000 hours, with virtually intact oxide films and stable dimensions in the high‑heat gas path.
Nimonic 86 has been developed to provide good workability, ductility and weldability combined with high creep strength and exceptionally good cyclic oxidation resistance at 1050°C. The alloy’s Ni‑25Cr‑10Mo‑Ce‑Mg chemistry forms adherent, slow‑growing oxide layers that resist spallation in repeated thermal shocks, making it ideal for gas turbine combustion chambers, afterburner parts, and heat‑treat furnace components where other alloys crack or scale away under cycling.
Aurico Alloys LLP supplies affordable, authentic Nimonic 86 Plates as a trusted supplier, manufacturer, and stockist to chemical, oil & gas, marine, pharma, and power generation industries, alongside hardware and industrial supply stores backed by EN 10204 3.1/3.2 MTC, PMI, and heat‑treatment traceability for each plate. As a leading Nimonic 86 Plates supplier, stockist, exporter in India to abroad, the company supports Nimonic 86 plate suppliers in Mumbai for gas turbine combustion chambers and liners and industrial furnace builders who need guaranteed performance under severe thermal cycling.
High-quality Nimonic 86 Plates ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Nimonic 86 (Alloy 86) |
| Standards / Specs | Special Metals proprietary specification for plate and sheet; no ASTM or AMS specification is published for this grade |
| Product Forms | Plates, sheets, strip, coils; cut profiles for liners, baffles, shrouds |
| Typical Thickness Range | 4.75 mm – 150 mm |
| Heat Treatment | Solution anneal around 1150°C (4 h) air cool; generally used in solid‑solution condition. |
| Key Features | Solid‑solution Ni‑Cr‑Mo alloy, excellent cyclic oxidation at 1050°C, good creep strength, weldable and formable. |
| Price | INR 1,200 – 2,999 per kg. Indicative USD 14 – 35 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | — |
| Density | 8.54 g/cm3 |
| Young's modulus (20 °C - dynamic) | 210 GPa |
| Plate, sheet and strip specification | Mill specification |
Identifiers and physical constants for Nimonic 86. A dash means no such designation is published for this grade.
Stock & Product Availability
In the Indian market, OEMs and fabricators specify Special Metals proprietary specification Nimonic 86 plates for afterburner parts and jet engine exhaust components where thin‑wall sheets see 1000–1050°C exhaust plus rapid cycling. Power and process customers demand cyclic oxidation resistant Alloy 86 plates for thermal power plant heat exchangers and hot‑gas ducting where scale spallation and creep in cheaper alloys cause fouling and leaks.
These Nimonic 86 nickel alloy plates are positioned for high‑temperature thermal cycling applications in India where 1000–1100°C is routine and downtime is very costly.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | 0.05 nominal | |
| Chromium (Cr) | 25.0 nominal | |
| Molybdenum (Mo) | 10.0 nominal | |
| Magnesium (Mg) | 0.015 nominal | |
| Cerium (Ce) | 0.03 nominal | |
| Nickel (Ni) | — | Balance |
Nominal composition for Nimonic 86. These are nominal figures rather than acceptance limits, and they are not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Typical Value (Solution Annealed) |
|---|---|
| Ultimate tensile strength (RT) | ≈842–873 MPa (about 122–127 ksi) |
| 0.2% Yield strength (RT) | ≈427–438 MPa |
| Elongation (RT) | ≥42–45 % on standard gauge length |
| Max recommended service temperature | ≈1050–1100°C for oxidation‑controlled components (combustion liners, furnace parts) |
| Key property | Exceptionally good cyclic oxidation resistance at 1050°C with good creep strength and weldability. |
Applications & Benefits
- Power & Turbines: Nimonic 86 plate suppliers in Mumbai for gas turbine combustion chambers and liners; Nimonic 86 nickel alloy plates for high‑temperature thermal cycling applications in India such as hot‑end liners, transition pieces, and heat‑exchanger baffles where oxidation and creep must be tightly controlled.
- Chemical, Petrochemical & Pharma: Nimonic 86 plates for chemical reactors handling high‑temperature oxidizing media, carburization resistant Alloy 86 plate stockist in Mumbai for petrochemical piping systems, and high‑purity Nimonic 86 plates for pharmaceutical high‑heat sterilization equipment, as well as custom cut‑to‑size Nimonic 86 plates for specialized chemical plant expansion bellows that see severe thermal cycling.
- Marine & Oil & Gas: Marine grade Nimonic 86 plates for offshore platform high‑heat flare tips, Nimonic 86 plate stockholders in Maharashtra for gas turbine burner liners, and high creep strength Nimonic 86 sheets for offshore subsea thermal recovery components where hot gas and brine coexist.
- Furnaces & General Fabrication: Cyclic oxidation resistant Alloy 86 plates for thermal power plant heat exchangers, industrial furnace muffles and shrouds, providing far better scale adherence and thermal‑fatigue life than lower‑alloy steels or even some other Nimonic grades.
- Sourcing & Compliance: Verified Nimonic 86 plate exporters in India with MTC EN 10204 3.1 and 3.2, including CR plates and coils for precision high‑temperature seals, and published Nimonic 86 vs Nimonic 75 plate comparison for superior cyclic oxidation at 1050°C in nickel‑alloy handbooks and supplier data.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Nimonic 86 Plates from Aurico Alloys LLP combine Special Metals proprietary specification pedigree with proven solid‑solution strength and outstanding cyclic oxidation resistance at 1050–1100°C, giving gas turbines, thermal power plants, furnaces, and high‑temperature chemical and marine systems a robust upgrade over Nimonic 75, 80A, or stainless steels that rapidly scale, crack, and creep in severe thermal‑cycling duty so are your hottest combustion liners, muffles, and heat‑exchanger sections yet protected by Nimonic 86’s high‑temperature alloy technology?