During a critical inspection of a major gas turbine power plant, engineers discovered micro-cracks developing in turbine discs after only 12,000 operating hours under combined centrifugal stress and thermal cycling up to 600°C. Standard alloys like Inconel 718 showed unacceptable creep deformation, but switching to Nimonic 901 Sheets (UNS N09901) – a precipitation-hardenable Ni-Fe-Cr superalloy with optimized molybdenum and titanium additions – extended disc life beyond 30,000 hours, representing a 150% improvement that saved millions in replacement costs.
Table of Contents
Nimonic 901 excels for procurement heads, engineers, fabricators, and OEM manufacturers requiring high yield strength (≥1000 MPa) and exceptional creep resistance up to 600°C in chemical processing, oil & gas turbines, marine propulsion, pharmaceutical equipment, and power generation. Unlike solid-solution alloys, its age-hardening mechanism via γ′ precipitates delivers 30-40% higher rupture strength than Nimonic 81, making it the preferred choice for rotating discs, shafts, rings, and casings where fatigue failure risks catastrophic consequences.
Aurico Alloys LLP serves as your premier Nimonic 901 Sheets supplier, stockist, and exporter in India to abroad. We support chemical, oil & gas, marine, pharma, and power industries plus hardware stores with affordable, authentic, best-quality material featuring Nimonic 901 ready stock India, competitive UNS N09901 sheet price per kg, and Nimonic 901 sheet cut to size precision services compliant with AMS 5660/5661.
Certified to AMS 5660 / 5661, Nimonic 901 maintains structural integrity through vacuum induction melting + remelting processes. For projects combining rotating components with static parts, Aurico supplies complementary Nimonic 81 sheets supplier stock for combustion chambers alongside full traceability and two-stage aging procedures.
High-quality Nimonic 901 Sheets ready for industrial use.
Specification Overview
| Supplier & Stockist | Aurico Alloys LLP – Nimonic 901 sheets supplier/export |
|---|---|
| Grade | Nimonic 901 (UNS N09901, Werkstoff 2.4662) |
| Standards | Supplied to mill agreement; Special Metals lists AMS 5660 / 5661 for rod, bar, wire and forging stock |
| Thickness Range | 0.5-50mm (Nimonic 901 sheet cut to size) |
| Width | Up to 2000mm |
| Finish | Solution annealed + aged, bright/polished |
| Delivery | Nimonic 901 ready stock, MTC, export packed |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N09901 |
| Werkstoff / EN number | 2.4662 |
| Density | 8.14 g/cm3 |
| Melting range | 1280-1345 °C |
| Specific heat (20 °C) | 431 J/kg·°C |
| Electrical resistivity (20 °C) | 112 µΩ·cm |
| Coefficient of expansion (20-100 °C) | 13.5 µm/m·°C |
Identifiers and physical constants for Nimonic 901. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP offers competitive Nimonic 901 price per kg with extensive ready stock optimized for urgent turbine disc forging and shaft manufacturing. Global OEMs benefit from our Nimonic 901 exporter capabilities matching Nimonic 81 stockist quality standards for complete rotor systems.
Nimonic 901 Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Nickel (Ni) | 42.5 nominal | |
| Chromium (Cr) | 12.5 nominal | |
| Molybdenum (Mo) | 5.75 nominal | |
| Titanium (Ti) | 2.9 nominal | |
| Cobalt (Co) | — | 1.0 |
| Copper (Cu) | — | 0.5 |
| Manganese (Mn) | — | 0.5 |
| Silicon (Si) | — | 0.4 |
| Aluminium (Al) | — | 0.35 |
| Carbon (C) | — | 0.1 |
| Sulfur (S) | — | 0.03 |
| Iron (Fe) | — | Balance |
Composition for Nimonic 901. Figures given as a range or a maximum are limits and those marked nominal are not; none of them are measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Nimonic 901 Mechanical Properties
| Property | Aged Condition |
|---|---|
| Tensile Strength | 1200-1350 MPa |
| Yield Strength (0.2%) | ≥1000 MPa |
| Elongation | ≥12% |
| Hardness | 302-388 HB |
| Max Service Temp | 600°C |
Applications & Why Choose Nimonic 901
Why this grade
Nimonic 901 substitutes a large iron fraction for nickel and is age-hardened with titanium, which makes it materially cheaper than the fully nickel-base grades. It is a forging alloy for turbine discs, shafts and rings running to around 600°C, where the higher-temperature capability of 90 or 105 would simply go unused.
- Chemical: High-pressure reactor vessels, heat exchanger tubesheets – superior to stainless in reducing environments]
- Oil & Gas: Compressor discs, turbine shafts – 30% higher creep life than 718
- Marine: Propulsion shafts, gear components – excellent forgeability
- Pharma: Sterile processing autoclaves – maintains strength post-aging
- Power: Gas turbine discs & rings, casings/seals – industry standard
- OEM/Hardware: Precision forgings from ready sheet stock
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 901 sheets from Aurico Alloys LLP deliver AMS 5660-certified precipitation hardening with unmatched 600°C creep resistance for your most critical turbine discs, shafts, and rotating components. Are your gas turbine rotors engineered with the proven reliability of Nimonic 901 superalloy?