Alloy A-286，Incoloy A-286 Sheet，,E FORU

British Specs:，American Specs:，German Specs:

**Alloy A-286 / Incoloy A-286 Sheet (UNS S66286)** **Product Overview** Alloy A-286 sheet is a precipitation-hardenable iron-nickel-chromium superalloy supplied in thin, flat-rolled form, engineered to provide exceptional high-temperature strength and corrosion resistance in demanding applications. This age-hardenable austenitic alloy maintains superior mechanical properties at temperatures up to 1300°F (700°C), offering an ideal combination of formability and strength for aerospace, industrial, and high-temperature processing applications. --- **Chemical Composition (Weight %)** | Element | Content (%) | Role in Alloy | |---------|-------------|---------------| | **Iron (Fe)** | Balance | Base Element | | **Nickel (Ni)** | 24.0-27.0 | Austenite Stabilizer & Strength | | **Chromium (Cr)** | 13.5-16.0 | Oxidation & Corrosion Resistance | | **Molybdenum (Mo)** | 1.0-1.5 | Solid Solution Strengthening | | **Titanium (Ti)** | 1.9-2.35 | Primary Age-Hardening Element | | **Aluminum (Al)** | ≤0.35 | Secondary Hardening Element | | **Vanadium (V)** | 0.10-0.50 | Strengthening Element | | **Boron (B)** | 0.003-0.010 | Grain Boundary Strengthening | | **Carbon (C)** | ≤0.08 | Controlled for Stability | | **Manganese (Mn)** | ≤2.00 | Workability Enhancement | --- **Physical & Mechanical Properties** **Physical Properties:** | Property | Value | |----------|-------| | **Density** | 7.93 g/cm³ (0.286 lb/in³) | | **Melting Point** | 1390-1430°C (2534-2606°F) | | **Thermal Expansion Coefficient** | 14.2 μm/m·°C (20-100°C) | | **Thermal Conductivity** | 18.0 W/m·K @ 100°C | | **Modulus of Elasticity** | 201 GPa (29.2 × 10⁶ psi) | | **Electrical Resistivity** | 0.92 μΩ·m | **Mechanical Properties (Age-Hardened Condition):** | Property | Value | |----------|-------| | **Tensile Strength** | 895-1100 MPa (130-160 ksi) | | **Yield Strength (0.2% Offset)** | 585-860 MPa (85-125 ksi) | | **Elongation** | 15-25% | | **Hardness** | 248-321 HB | | **Shear Strength** | 620 MPa (90 ksi) | | **Fatigue Strength** | 480 MPa (70 ksi) | --- **International Standards & Specifications** | Standard Type | Specification | Description | |---------------|---------------|-------------| | **ASTM** | B593 | Sheet and Strip Specification | | **AMS** | 5525 | Sheet and Plate Standard | | **ASME** | - | - | | **UNS** | S66286 | Unified Numbering System | | **EN** | 1.4980 | European Standard | | **AWS** | A5.14 | Welding Electrode Specification | --- **Sheet Specifications & Availability** **Available Forms:** - **Cold Rolled Sheet:** Precision thickness control - **Hot Rolled Sheet:** Standard mill finish - **Annealed Condition:** Optimal for fabrication - **Age Hardened:** Maximum strength condition **Size Ranges:** - **Thickness:** 0.1mm to 6.0mm (0.004" to 0.250") - **Width:** Up to 1200mm (48 inches) - **Length:** Up to 3000mm (120 inches) **Surface Finish:** - **2B Finish:** Standard bright finish - **BA Finish:** Bright annealed - **No. 1 Finish:** Hot rolled, annealed, and pickled - **Polished:** Special surface requirements --- **Applications** 1. **Aerospace & Defense** - Aircraft structural panels - Jet engine components - Heat shield assemblies - Missile structural parts - Satellite components 2. **Industrial Processing** - Heat treatment fixtures - High-temperature furnace parts - Processing trays and baskets - Thermal shield components - Industrial heater elements 3. **Power Generation** - Gas turbine components - Heat exchanger parts - Boiler components - Nuclear reactor parts - Power plant structural elements 4. **Automotive & Racing** - High-performance exhaust systems - Turbocharger components - Racing engine parts - High-temperature brackets - Thermal management components --- **Heat Treatment Specifications** **Solution Annealing:** - Temperature: 1700-1800°F (925-980°C) - Time: 30-60 minutes - Cooling: Rapid air cool or water quench **Age Hardening (Standard):** - Temperature: 1300-1400°F (705-760°C) - Time: 16-20 hours - Cooling: Air cool to room temperature **Microstructural Features:** - Fine austenitic grain structure - Uniform gamma prime (γ') precipitation - Optimal precipitate distribution - Enhanced grain boundary strength --- **Fabrication & Manufacturing** **Forming Characteristics:** - Excellent deep drawing capability - Good stretch forming properties - Suitable for roll forming - Can be spun and sheared **Machining Guidelines:** - Best machined in solution-treated condition - Use positive rake tool geometry - Recommended speed: 20-25 SFM - Carbide tools with abundant coolant **Welding Procedures:** - **GTAW (TIG):** Preferred method - **GMAW (MIG):** Suitable for production - **Filler Metal:** AWS A5.14 ERFeCrNi - **Post-Weld Heat Treatment:** Required --- **Quality Assurance & Testing** **Testing Methods:** - Tensile testing at room and elevated temperatures - Hardness testing across sheet surface - Bend testing for formability verification - Chemical analysis verification - Surface quality inspection **Certification & Documentation:** - Mill test certificates per EN 10204 3.1 - Full chemical composition reports - Mechanical test certificates - Heat treatment records - Non-destructive testing reports --- **Technical Performance Data** **Elevated Temperature Properties:** | Temperature | Tensile Strength | Yield Strength | |-------------|------------------|----------------| | 70°F (20°C) | 895-1100 MPa | 585-860 MPa | | 400°F (200°C) | 850-1050 MPa | 550-820 MPa | | 700°F (370°C) | 800-950 MPa | 520-780 MPa | | 1000°F (540°C) | 650-800 MPa | 450-650 MPa | **Corrosion Resistance:** - Excellent oxidation resistance to 1300°F - Good resistance to industrial atmospheres - Superior stress corrosion cracking resistance - Excellent performance in steam environments - Good aqueous corrosion resistance --- **Design Advantages** | Feature | Benefit | |---------|---------| | **High Strength-to-Weight Ratio** | Ideal for weight-sensitive applications | | **Excellent Creep Resistance** | Maintains properties under sustained load | | **Superior Fatigue Strength** | Withstands cyclic loading conditions | | **Age-Hardenable** | Precise property control through heat treatment | | **Excellent Formability** | Suitable for complex fabrications | --- **Storage & Handling** **Storage Requirements:** - Store in dry, temperature-controlled environment - Protect from surface damage and contamination - Separate from other materials - Maintain proper identification tags **Handling Guidelines:** - Use clean gloves when handling - Prevent surface scratching - Use proper support during storage - Avoid exposure to corrosive environments --- **Conclusion** Alloy A-286 sheet offers an exceptional combination of high-temperature strength, corrosion resistance, and fabrication versatility, making it the material of choice for demanding applications in aerospace, power generation, and industrial processing. Its unique age-hardening capability provides engineers with precise control over mechanical properties, while its excellent formability enables the production of complex, high-performance components. Available in various thicknesses, widths, and surface finishes, A-286 sheet continues to provide reliable performance in the world's most challenging engineering environments, ensuring safety, reliability, and longevity in high-temperature applications.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2722 gallon liquid totes Special package is available on request.