Stainless Steel A286
W-Nr. 1.4980; UNS S66286
Chemical Composition – Stainless Steel A28
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | – | 0.08 |
| Manganese (Mn) | – | 2.00 |
| Silicon (Si) | – | 1.00 |
| Phosphorus (P) | – | 0.04 |
| Sulfur (S) | – | 0.03 |
| Aluminum (Al) | – | 0.35 |
| Chromium (Cr) | 13.00 | 16.00 |
| Nickel (Ni) | 24.00 | 27.00 |
| Molybdenum (Mo) | 1.00 | 1.50 |
| Titanium (Ti) | 1.90 | 2.35 |
| Vanadium (V) | 0.10 | 0.50 |
| Boron (B) | – | 0.01 |
| Copper (Cu) | – | 0.30 |
General Characteristics
Stainless Steel A286 (W-Nr. 1.4980; UNS S66286) A286 is an iron-nickel-chromium-based superalloy, precipitation-hardened and designed for applications requiring high tensile strength, stability at elevated temperatures, and good corrosion resistance.
In addition, this alloy is ideal for high-temperature environments with moderate fatigue loading. Due to its properties, A286 is widely used in engine components, turbines, and aerospace applications, where high-temperature reliability is critical.
Mechanical Properties of A286:
| Property | Value |
|---|---|
| 0.2% Proof Stress | 720 N/mm² |
| Tensile strength | 1000 N/mm² |
| Elongation | 15% |
| Hardness (HB) | 250–355 |
| Reduction of area (ROA) | 25% (min) |
Key Features:
- Age-hardening capability
- Excellent thermal stability
- High resistance in oxidizing environments
- Favorable performance under thermal cycling
Applications:
A286 is highly versatile and used in applications including:
- Aerospace industry – gas turbines
- Jet engine blades and wheels
- Afterburner components
- Exhaust system parts
- Collector components
- High-performance bolts and fasteners
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