Nimonic 105 Plates | W.Nr. 2.4634 / Alloy 105 for Extreme 950°C Creep Service
Table of Contents:
When a Gujarat combined-cycle plant faced repeated rotor blade failures after just 12,000 hours at 930°C, every emergency outage cost ₹8 crore in lost generation plus weeks of imported blade logistics that procurement could no longer defend to the board. The solution was Nimonic 105 Plates, a nickel-cobalt-chromium wrought superalloy with gamma-prime precipitation hardening that extended creep-rupture life beyond 40,000 hours at 950°C delivering 3× the service interval of conventional Nimonic 90 or Inconel 718 while maintaining rotor integrity under combined centrifugal stress and thermal cycling.
Nimonic 105 (W.Nr. 2.4634) combines the high-temperature strength of age-hardened nickel alloys with optimized cobalt (18-22%) and molybdenum (4.5-5.5%) for exceptional creep resistance up to 950°C, where conventional superalloys lose structural integrity. Unlike Nimonic 90's simpler gamma-prime structure, 105's advanced precipitation sequence provides superior resistance to overaging and microstructural instability during prolonged exposure above 900°C, making it the material of choice for the hottest sections of advanced gas turbines.
Aurico Alloys LLP provides affordable, authentic Nimonic 105 Plates as trusted supplier, manufacturer, and stockist for chemical, oil & gas, marine, pharma, and power industries, plus hardware stores with full EN 10204 3.1 MTC, heat treatment charts, and PMI verification for each plate. As leading Nimonic 105 Plates supplier, stockist, exporter in India to abroad, we support Nimonic 105 plate suppliers in Mumbai for high-pressure gas turbine discs and rotors and HPHT oilfield fabricators needing guaranteed 950°C performance.
High-quality Nimonic 105 Plates ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Nimonic 105 (W.Nr. 2.4634) |
| UNS | — |
| Standards | BS HR 3, Special Metals proprietary specification for wrought plate/bar. |
| Plate Thickness Range | 4.75 mm – 150 mm |
| Heat Treatment | Solution 1050-1100°C + age 850°C/16h + 700°C/16h. |
| Delivery Condition | Solution treated + aged plate with full MTC 3.1, hardness and creep test reports. |
| Price | INR 1,200 – 3,000 per kg. Indicative USD 14 – 35 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | — |
| Werkstoff / EN number | 2.4634 |
| EN designation | — |
| Density | 8.01 g/cm3 |
| Melting range | 1290-1345 °C |
| Electrical resistivity (20 °C) | 131 µΩ·cm |
| Magnetic permeability (0.02 T - 0.2 T) | 1.000715 |
| Plate, sheet and strip specification | BS HR 3 |
Identifiers and physical constants for Nimonic 105. A dash means no such designation is published for this grade.
Stock & Product Availability
Gas turbine OEMs source Nimonic 105 nickel alloy plates for jet engine turbine stator segments in India where 950°C creep life exceeds 40,000 hours, far surpassing conventional nickel alloys. Power engineers specify high creep-rupture strength Alloy 105 plates for power plant turbine blades, leveraging Nimonic 105's optimized gamma-prime stability.
Age-hardened Nimonic 105 plates for nuclear reactor core components in India command full traceability and third-party verification.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | — | 0.17 |
| Silicon (Si) | — | 1.0 |
| Copper (Cu) | — | 0.2 |
| Iron (Fe) | — | 1.0 |
| Manganese (Mn) | — | 1.0 |
| Chromium (Cr) | 14.0 | 15.7 |
| Titanium (Ti) | 0.9 | 1.5 |
| Aluminium (Al) | 4.5 | 4.9 |
| Cobalt (Co) | 18.0 | 22.0 |
| Molybdenum (Mo) | 4.5 | 5.5 |
| Lead (Pb) | — | 0.0015 |
| Sulfur (S) | — | 0.010 |
| Boron (B) | 0.003 | 0.010 |
| Zirconium (Zr) | — | 0.15 |
| Nickel (Ni) | — | Balance |
Composition limits for Nimonic 105. 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.
Mechanical & Physical Properties
| Property | Value (Fully Aged) |
|---|---|
| Tensile Strength (RT) | ≥980-1150 MPa |
| 0.2% Yield Strength (RT) | ≥720 MPa |
| Elongation (RT) | ≥20% |
| Max Service Temp | 950°C continuous creep service |
| Creep-Rupture | >20,000h at 1000°C |
Applications & Benefits
Why this grade
Nimonic 105 carries more cobalt and molybdenum than 90 and a higher aluminium-to-titanium ratio, raising the gamma-prime volume fraction and with it creep strength to around 950°C. It is a blade and disc alloy; the extra strength comes at the cost of fabricability, so it is not a sheet-fabrication choice.
- Oil, Gas & Marine: Nimonic 105 plate stockist in Mumbai for oilfield downhole tools in HPHT wells; corrosion resistant Alloy 105 plates for offshore platform turbine exhaust systems and marine grade Nimonic 105 plates for subsea propulsion hardware where 900°C+ temperatures meet seawater corrosion.
- Chemical & Pharma: Nimonic 105 plates for chemical reactors operating at ultra-high temperatures; high-purity Nimonic 105 plates for pharmaceutical waste incineration units and custom cut-to-size Nimonic 105 plates for specialty laboratory vacuum furnaces needing 950°C stability.
- Power & Nuclear: High creep-rupture strength Alloy 105 plates for power plant turbine blades and age-hardened Nimonic 105 plates for nuclear reactor core components in India where microstructural stability under neutron flux is critical.
- Sourcing: Leading Nimonic 105 alloy plate dealers in Mumbai for extreme mechanical stress applications with full documentation for Nimonic 105 plate exporters in Mumbai serving global offshore exploration projects and Nimonic 105 alloy sheets for sour gas valves.
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 105 Plates from Aurico Alloys LLP deliver W.Nr. 2.4634 pedigree with unmatched creep-rupture strength to 950°C, giving advanced gas turbines, HPHT oilfield tools, nuclear cores, and ultra-high-temperature chemical process hardware a proven upgrade over conventional superalloys that fail prematurely under combined stress and heat so are your hottest turbine discs, rotor blades, and downhole tools yet protected by Nimonic 105 technology?