In the heart of a Middle Eastern gas turbine power plant, engineers faced a crisis: turbine blades were failing prematurely under combined creep and thermal fatigue at 700°C, costing millions in forced outages. Standard Inconel 718 and Nimonic 80A alternatives deformed under load after just 10,000 hours, but switching to Nimonic 90 Sheets (UNS N07090) extended blade life to over 25,000 hours – a 150% improvement that transformed plant economics and reliability.
Table of Contents
Nimonic 90 represents the pinnacle of age-hardened nickel superalloys for procurement heads, engineers, fabricators and OEM manufacturers serving chemical processing, oil & gas reforming, marine propulsion, pharmaceutical furnaces and power generation. Unlike solid-solution alloys, Nimonic 90's precipitation hardening delivers 40% higher creep rupture strength at 650-750°C, making it the material of choice for gas turbine blades and high-stress rotating components where failure isn't an option.
Aurico Alloys LLP serves as your premier Nimonic 90 Sheets supplier, stockist and exporter in India to abroad. We equip chemical, oil & gas, marine, pharma and power industries plus hardware stores with affordable, authentic, best-quality stock featuring Nimonic 90 ready stock India, competitive UNS N07090 sheet price per kg, and precision Nimonic 90 sheet cut to size service.
With tensile strength exceeding 1200 MPa post-age hardening, Nimonic 90 outperforms Nimonic 81 in sustained high-temperature load applications. For projects also using Nimonic 81 sheets supplier for combustion chambers, Aurico provides seamless multi-alloy procurement with full BS HR 202 certification and traceability.
High-quality Nimonic 90 Sheets ready for industrial use.
Specification Overview
| Supplier & Stockist | Aurico Alloys LLP – Nimonic 90 sheets supplier India |
|---|---|
| Grade | Nimonic 90 (UNS N07090, Werkstoff 2.4632) |
| Standards | BS HR 202, AECMA PrEN 2298 |
| Thickness Range | 0.5mm–50mm (Nimonic 90 sheet cut to size) |
| Width/Length | Up to 2000mm width, coil or sheet form |
| Finish | Solution annealed + aged, bright annealed, pickled |
| Delivery | Nimonic 90 ready stock, export packed, full MTC |
| Price | INR 5,000 – 12,000 per kg. Indicative USD 59 – 141 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N07090 |
| Werkstoff / EN number | 2.4632 / 2.4969 |
| EN designation | NiCr20Co18Ti |
| Density | 8.18 g/cm3 |
| Melting range | 1310-1370 °C |
| Specific heat (20 °C) | 446 J/kg·°C |
| Plate, sheet and strip specification | BS HR 202 / AECMA PrEN 2298 |
Identifiers and physical constants for Nimonic 90. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP maintains strategic Nimonic 90 price per kg positioning with extensive ready stock for urgent gas turbine, reformer tube sheet and high-temperature furnace requirements. Global procurement teams access Nimonic 90 exporter services with batch traceability matching Nimonic 81 stockist quality standards for complementary combustion chamber applications.
Nimonic 90 Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | — | 0.13 |
| Silicon (Si) | — | 1.0 |
| Copper (Cu) | — | 0.2 |
| Iron (Fe) | — | 1.5 |
| Manganese (Mn) | — | 1.0 |
| Chromium (Cr) | 18.0 | 21.0 |
| Titanium (Ti) | 2.0 | 3.0 |
| Aluminium (Al) | 1.0 | 2.0 |
| Cobalt (Co) | 15.0 | 21.0 |
| Boron (B) | — | 0.02 |
| Sulfur (S) | — | 0.015 |
| Lead (Pb) | — | 0.0020 |
| Zirconium (Zr) | — | 0.15 |
| Nickel (Ni) | — | Balance |
Composition limits for Nimonic 90. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Nimonic 90 Mechanical Properties
| Property | Solution + Aged Condition |
|---|---|
| Ultimate Tensile Strength | 1200-1400 MPa |
| 0.2% Yield Strength | ≥900 MPa |
| Elongation | ≥12% |
| Hardness | 360-420 HB |
| Creep Rupture (700°C/100MPa) | > 1000 hours |
| Max Service Temp | 750°C continuous |
Applications & Why Choose Nimonic 90
Why this grade
Nimonic 90 is 80A with roughly 16–20% cobalt added. The cobalt lifts useful service temperature by about 100°C over 80A, which is what makes it the grade for turbine blades and discs in the cooler stages, and for hot-working tooling — duty where 80A has run out of creep strength but the cost and difficulty of 105 or 115 is not justified.
- Chemical: Reactor internals, cracking furnace tubes – Nimonic 90 creep resistance 2x better than 800H
- Oil & Gas: Steam reformer tubesheets, cracking coils – superior to Nimonic 81 vs Nimonic 80A in sustained load
- Marine: Gas turbine blades, propulsion components – exceptional fatigue resistance
- Pharma: High-purity heat treatment baskets – maintains strength post-age hardening
- Power: Nimonic 90 gas turbine blades, rotor discs – industry proven
- Hardware/OEM: Precision sheet for high-stress fasteners from ready 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 90 sheets from Aurico Alloys LLP deliver BS HR 202-certified, age-hardened performance with unmatched creep resistance and fatigue strength for your most critical rotating and high-stress components. Are your gas turbine blades and reformer components engineered with the superior Nimonic 90 superalloy?