Incoloy A286 Round Bar (UNS S66286 / W.Nr. 1.4980)
Incoloy A286 Round Bar is a precipitation-hardenable austenitic iron–nickel–chromium alloy known for its high strength, excellent creep resistance, and good corrosion resistance at elevated temperatures. It maintains mechanical integrity up to about 700 °C, making it a preferred material for aerospace and high-temperature structural applications.
Key Features
- Excellent high-temperature strength and creep resistance
- Good oxidation and corrosion resistance
- Precipitation-hardenable for enhanced mechanical properties
- Stable austenitic structure at elevated temperatures
- Good weldability and machinability (solution-treated condition)
- Reliable performance under long-term thermal exposure
Equivalent Grades
| Standard | Equivalent |
|---|---|
| UNS | S66286 |
| DIN / EN | 1.4980 |
| ASTM | A-286 |
Sizes
- Diameter: 6 mm to 300 mm
- Length: Random, Cut Length, or as per customer requirement
Incoloy A286 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Iron (Fe) | Balance |
| Nickel (Ni) | 24.0 – 27.0 |
| Chromium (Cr) | 13.5 – 16.0 |
| Molybdenum (Mo) | 1.0 – 1.75 |
| Titanium (Ti) | 1.9 – 2.35 |
| Aluminum (Al) | ≤ 0.35 |
| Vanadium (V) | 0.10 – 0.50 |
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
UNS S66286 Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 930 MPa |
| Yield Strength (0.2%) | ≥ 590 MPa |
| Elongation | ≥ 15% |
| Hardness | ~ 28–35 HRC (Aged) |
Alloy A286 Physical Properties
| Property | Value |
|---|---|
| Density | 7.92 g/cm³ |
| Melting Range | 1365 – 1395 °C |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity | 11.2 W/m·K |
Types of Incoloy A286 Round Bar
- Solution-Annealed Round Bar
- Precipitation-Hardened Round Bar
- Hot Rolled Round Bar
- Forged Round Bar
Applications
- Aerospace fasteners and engine components
- Gas turbine parts
- High-temperature bolts, nuts, and shafts
- Automotive turbocharger components
- Power generation equipment
- Structural components exposed to high heat
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