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

British Specs:，American Specs:，German Specs:

**Alloy A-286 / Incoloy A-286 Plate (UNS S66286)** **Product Overview** Alloy A-286 plate is a precipitation-hardenable iron-nickel-chromium superalloy supplied in flat plate form, designed to deliver 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), making it an ideal choice for structural components in aerospace, power generation, and industrial processing equipment where reliability under thermal stress is critical. --- **Chemical Composition (Weight %)** | Element | Content (%) | Role in Alloy | |---------|-------------|---------------| | **Iron (Fe)** | Balance | Base Element | | **Nickel (Ni)** | 24.0-27.0 | Austenite Stabilizer & Strength Provider | | **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) | | **Specific Heat** | 460 J/kg·K @ 20°C | **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% | | **Reduction of Area** | 20-35% | | **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 | Plate, Sheet, and Strip | | **AMS** | 5525 | Sheet and Plate Specification | | **ASME** | - | - | | **UNS** | S66286 | Unified Numbering System | | **EN** | 1.4980 | European Standard | | **DIN** | - | - | --- **Plate Specifications & Availability** **Available Forms:** - **Hot Rolled Plate:** Standard mill finish - **Annealed Plate:** Solution treated condition - **Age Hardened Plate:** Maximum strength condition - **Precision Ground Plate:** Machined finish **Size Ranges:** - **Thickness:** 0.5mm to 150mm (0.020" to 6.0") - **Width:** Up to 1500mm (60 inches) - **Length:** Up to 4000mm (160 inches) **Surface Conditions:** - Hot rolled, annealed, and pickled - Ground or polished surfaces - Ultrasonically tested - Dimensionally certified --- **Applications** 1. **Aerospace & Defense** - Aircraft structural components - Jet engine mounting plates - Missile structural parts - Satellite components - Radar mounting plates 2. **Power Generation** - Gas turbine components - Heat shield plates - Turbine casing parts - Nuclear reactor components - Boiler structural elements 3. **Industrial Equipment** - High-temperature furnace parts - Heat treatment fixtures - Processing tooling plates - Chemical reactor components - High-stress structural frames 4. **Special Applications** - High-temperature molds - Pressure vessel sections - Test equipment components - Special machinery bases - High-performance automotive parts --- **Heat Treatment Specifications** **Solution Annealing:** - Temperature: 1700-1800°F (925-980°C) - Time: 1-2 hours per inch of thickness - 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 **Microstructure:** - Austenitic matrix with gamma prime (γ') precipitates - Fine, uniform grain structure - Optimal precipitate distribution for maximum strength --- **Fabrication & Machining** **Machining Characteristics:** - **Machinability Rating:** 40% (compared to 1212 steel) - **Cutting Speed:** 20-30 SFM for milling operations - **Tool Material:** Carbide or cobalt tools recommended - **Coolant:** Essential for heat management **Forming & Welding:** - Good cold forming characteristics - Can be hot formed at 1600-2200°F - Weldable using GTAW and GMAW processes - Post-weld heat treatment required **Finishing Operations:** - Good grindability and polishability - Suitable for EDM and laser cutting - Can be plated or coated as required --- **Quality Assurance & Testing** **Testing Methods:** - Ultrasonic testing per ASTM A578 - Tensile testing at room and elevated temperatures - Hardness testing across plate surface - Chemical analysis verification - Macro and micro examination **Certification:** - Mill test certificates per EN 10204 3.1/3.2 - Full chemical composition reports - Mechanical test certificates - Heat treatment documentation - 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 structural applications | | **Excellent Creep Resistance** | Maintains dimensional stability under sustained load | | **Superior Fatigue Strength** | Withstands cyclic loading conditions | | **Age-Hardenable** | Precise property control through heat treatment | | **Good Fabricability** | Excellent machining and forming characteristics | --- **Storage & Handling Guidelines** **Storage Conditions:** - Store in dry, covered environment - Protect from surface contamination - Separate from other materials - Maintain proper identification **Handling Precautions:** - Use clean gloves when handling - Prevent surface scratching - Use proper lifting equipment - Avoid contact with corrosive substances --- **Conclusion** Alloy A-286 plate offers an exceptional combination of high-temperature strength, corrosion resistance, and fabrication versatility, making it the material of choice for critical structural applications in aerospace, power generation, and industrial processing. Its unique age-hardening capability provides engineers with precise control over mechanical properties, while its excellent fabrication characteristics enable the production of complex, high-performance components. Available in various thicknesses, sizes, and heat treatment conditions, A-286 plate continues to provide reliable performance in the world's most demanding engineering environments, ensuring safety, reliability, and longevity in high-temperature structural 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 2721 gallon liquid totes Special package is available on request.