NIMONIC C263 Nickel Alloy (UNS N07263, AMS 5888, DIN 2.4660) is a high-performance nickel-chromium-based superalloy engineered for superior high-temperature strength and exceptional oxidation resistance. This age-hardenable nickel-cobalt-chromium-molybdenum alloy maintains its mechanical integrity at temperatures up to 800°C (1472°F), making it indispensable for critical engineering applications in aerospace, power generation, and petrochemical industries.
At Plus Metals, a leading High Performance Metal Supply company operating globally from Mumbai, India, we supply NIMONIC C263 in various forms including sheets, plates, bars, strips, coils, tubes, pipes, and forgings—ready for demanding aerospace and engineering projects.
Key Features of High Temperature Nickel Alloy NIMONIC C263
| Feature | Description |
|---|---|
| High-Temperature Strength | Maintains mechanical properties up to 800°C (1472°F) |
| Oxidation Resistance | Excellent resistance to oxidation and scaling at high temperatures |
| Creep Resistance | Superior creep resistance with >100 MPa at 800°C |
| Corrosion Resistance | Superior resistance to acidic and basic corrosive environments |
| Weldability | Readily welded and fabricated for complex designs |
| Formability | Excellent ductility in annealed condition for cold forming |
| Density | Approximately 8.7 g/cm³ for favorable strength-to-weight ratio |
NIMONIC C263 performs exceptionally well in extreme thermomechanical environments where synergistic high-temperature strength, corrosion resistance, and manufacturability are critical.
NIMONIC C263 Mechanical Properties
Understanding NIMONIC C263 Mechanical Properties is essential for engineers selecting materials for high-stress applications. The alloy exhibits outstanding mechanical performance in both annealed and aged conditions:
Typical Mechanical Properties (Annealed Condition)
| Property | Value (N/mm²) | Value (ksi) |
|---|---|---|
| Tensile Strength | <1000 | <145 |
| 0.2% Yield Strength | ≥570 | ≥83 |
| Elongation (A₅) | ≥30% | — |
| Modulus of Elasticity | 222 kN/mm² | — |
Minimum Mechanical Properties (Solution Treated & Aged at 1435°F/780°C)
| Property | Value (psi) | Value (MPa) |
|---|---|---|
| Tensile Strength | 78,500 | 541 |
| Yield Strength | 58,500 | 403 |
Additional Properties
- Tensile Strength: High tensile strength for components under significant mechanical stress at elevated temperatures
- Density: 8.7 g/cm³ (favorable strength-to-weight ratio)
- Thermal Conductivity: 11.72 W/m·°C at 20°C (moderate for high-temperature stability)
- Specific Heat Capacity: 461 J/kg·K at 20°C
- Melting Point: 1350–1370°C (2370–2471°F)
The alloy's precipitation-hardened γ' phase (Ni₃[Al,Ti]) provides exceptional creep resistance exceeding 100 MPa at 800°C and withstands thermal fatigue during repeated temperature cycling.
NIMONIC Material Specifications
NIMONIC C263 Material Specifications ensure compliance with stringent international standards:
| Standard | Specification |
|---|---|
| UNS | N07263 |
| AMS | 5888 |
| DIN | 2.4660 (also 2.4650) |
| BS | HR 321 |
Chemical Composition (% by weight)
| Element | Minimum | Maximum |
|---|---|---|
| Carbon (C) | 0.040% | 0.080% |
| Cobalt (Co) | 19.0% | 21.0% |
| Chromium (Cr) | 19.0% | 21.0% |
| Molybdenum (Mo) | 5.60% | 6.10% |
| Titanium (Ti) | 1.90% | 2.40% |
| Aluminum (Al) | 0.30% | 0.60% |
| Titanium + Aluminum | 2.40% | 2.80% |
| Manganese (Mn) | — | 0.60% |
| Silicon (Si) | — | 0.40% |
| Iron (Fe) | — | 0.70% |
| Sulfur (S) | — | 0.007% |
| Boron (B) | — | 0.005% |
| Copper (Cu) | — | 0.20% |
| Nickel (Ni) | 49.0% (remainder) | |
The cobalt content (19–21%) provides solid-solution strengthening, while molybdenum (5.6–6.1%) enhances pitting resistance in chloride-contaminated environments.
NIMONIC C263 Industrial Applications
NIMONIC C263 Industrial Applications span multiple high-performance sectors where extreme temperatures and mechanical stress demand exceptional material properties:
Aerospace Industry
- Aircraft engine turbine blades and combustors
- Afterburner parts and exhaust systems
- Combustor liners for aerospace gas turbines
- Post-combustor coatings requiring thermal fatigue resistance
Gas Turbine Engineering
- Turbine wheels, casings, and exhaust systems for land-based gas turbines
- Transition ducts and seals (operating at 815–870°C)
- Hot combustion area components in gas turbines
Power Generation
- Turbine discs and blades for power generation
- Boiler tubes and steam headers for ultra-supercritical coal plants (700–750°C/35 MPa)
- Nuclear boiler tube parts
Petrochemical Industry
- Heat exchangers and furnace components
- Reactor vessels treating sulfuric/phosphoric acids (≤200°C)
- Gas injection compressor centrifugal impellers
Other Industrial Applications
- Automobile exhaust valves
- Die-casting inserts and cores
- High-strength fastening elements for geothermal systems (resisting H₂S/CO₂ brines)
- Cellulose and paper bleaching rolls resisting sulfur corrosion
- Marine turbine exhausts (saltwater pitting immunity)
- Catalyst regeneration units (cyclic oxidation at 750°C)
The alloy's chromium oxide scale stability (kp=3×10−14 g²/cm4·s at 900°C) resists oxidation-carburization degradation in harsh environments.
Plus Metals: Global High Performance Metal Supply
Plus Metals has built a reputation for excellence over more than two decades of service in the specialty metals and alloys industry. As an ISO-certified company headquartered in Mumbai, Maharashtra, India, we serve clients globally—from Fortune 500 companies to individual engineers and researchers.
Why choose Plus Metals for NIMONIC C263:
- State-of-the-art facilities in Mumbai enabling precision cutting, deburring, and distribution
- Mill-certified materials included with all shipments
- Custom solutions: Cutting, shearing, and waterjetting to exact specifications
- Fast delivery: Dispatch within 24 hours of order confirmation for stock items
- Quality Management System reflecting dedication to precision across all operations
- Diverse inventory of nickel-based alloys, high-temp alloys, and titanium alloys
We supply NIMONIC C263 in sheets (thickness 0.020"–0.500"), plates (0.500"+), bars/rods (0.250"+), tubes/pipes, wires, and custom fabrications. For related high-performance alloys, explore our range of Nimonic 75 and other nickel-based alloy solutions.
Contact Plus Metals for NIMONIC C263 Supply
For NIMONIC C263 Nickel Alloy and other high-performance materials, partner with Plus Metals—the trusted source for specialty metal solutions:
Email: sales@plusmetals.in
Call / WhatsApp: +91 91673 47029
Website: www.plusmetals.in
Inventory: Sheet, plate, bar, rod, tube, pipe, wire, and custom fabrications
Shipping: Within 24 hours of order confirmation for stock items
Quality: Mill-certified materials with competitive pricing
Message Plus Metals today to discuss your requirements. They understand international standards and project timelines, delivering trust, quality, and long-term performance.
Frequently Asked Questions (FAQs)
Q1: What is the maximum operating temperature for NIMONIC C263 Nickel Alloy?
NIMONIC C263 performs exceptionally well at temperatures up to 800°C (1472°F) while maintaining mechanical integrity, with oxidation resistance extending up to 1100°C (2012°F).
Q2: What are the key NIMONIC C263 Mechanical Properties for aerospace applications?
The alloy exhibits tensile strength <1000 N/mm² (annealed), yield strength ≥570 N/mm², elongation ≥30%, and creep resistance >100 MPa at 800°C—critical for turbine blades and combustors.
Q3: Is NIMONIC C263 weldable and fabricable?
Yes, NIMONIC C263 can be readily welded and fabricated, allowing versatility in complex designs. It has excellent ductility in the annealed condition, making it suitable for cold forming and hot working.
Q4: What international standards does NIMONIC C263 Material Specifications comply with?
NIMONIC C263 complies with UNS N07263, AMS 5888, DIN 2.4660, and BS HR 321, ensuring compliance with stringent international standards.
Q5: What are the primary NIMONIC C263 Industrial Applications in the petrochemical industry?
In petrochemical processing, NIMONIC C263 is employed in heat exchangers, furnace components, and reactor vessels treating sulfuric/phosphoric acids due to its superior corrosion resistance in harsh chemical environments.
