Product Overview

A286 (UNS S66286) is a precipitation-hardening iron-nickel-chromium superalloy renowned for its exceptional high-temperature strength, oxidation resistance, and corrosion durability. Designed to perform reliably in extreme conditions, A286 fasteners maintain superior mechanical properties from cryogenic temperatures up to 700°C (1,292°F). With a unique composition (Nickel 24-27%, Chromium 13.5-16%, Molybdenum 1.0-1.5%, Titanium 1.75-2.35%), this alloy achieves high tensile strength (≥900 MPa) and outstanding resistance to creep, fatigue, and corrosive media such as acids, chlorides, and sulfur compounds.

Our A286 fastener product range includes:

· A286 Bolts & Screws: High-strength threaded fasteners for critical connections in high-stress environments.

· A286 Nuts: Precision-matched to bolts for secure, vibration-resistant assemblies.

· A286 Washers: Ensure even load distribution and prevent galvanic corrosion.

· A286 Stud Bolts: Ideal for flanged connections in piping systems and pressure vessels.

· A286 Threaded Rods: Versatile components for custom applications requiring extended length.

· A286 Rivets: Used in aerospace and automotive applications for lightweight, robust fastening.

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Key Applications

1. Aerospace & Defense:

· A286 bolts and A286 screws are critical in jet engines, turbine blades, and airframe structures, where they withstand temperatures up to 700°C (1,292°F) and high dynamic loads.

2. Oil & Gas:

· A286 stud bolts and A286 nuts excel in wellhead equipment, offshore platforms, and refineries, resisting sour gas (H₂S), seawater, and high-pressure environments.

3. Automotive Industry:

· A286 fasteners are used in turbochargers, exhaust systems, and engine components, enduring temperatures up to 900°C (1,652°F) and cyclic thermal stress.

4. Energy & Power Generation:

· A286 bolts and A286 threaded rods serve in nuclear reactors, gas turbines, and boilers, offering radiation resistance and long-term stability at elevated temperatures.

5. Chemical Processing:

· A286 screws and A286 washers are employed in reactors, heat exchangers, and piping systems handling acids, chlorides, and caustic solutions.

6. Marine Engineering:

· A286 rivets and A286 nuts provide exceptional resistance to saltwater corrosion in offshore structures and desalination plants.

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Selection Criteria for A286 Fasteners

1. Temperature Requirements:

· For applications below 700°C (1,292°F), A286 delivers optimal strength and creep resistance. Beyond this range, consider nickel-based alloys like Inconel 718.

2. Corrosive Environment:

· Choose A286 for environments with chlorides, acids, or sulfur compounds. Its high chromium and molybdenum content provides superior pitting and stress corrosion cracking (SCC) resistance.

3. Mechanical Properties:

· Ensure the fastener’s tensile strength (≥900 MPa) and hardness (HRC ≥35) align with application loads. For high-vibration scenarios, prioritize fatigue-resistant grades.

4. Heat Treatment:

· Specify solution-annealed (980°C) and aged (720°C, 16 hours) fasteners for peak strength and microstructural stability.

5. Galvanic Compatibility:

· Pair A286 bolts with A286 nuts and A286 washers to prevent differential corrosion and ensure joint integrity.

6. Certifications & Standards:

· Verify compliance with AMS 5731/5737 (ASTM A453), ISO 15156 (NACE MR0175), and material traceability (MTRs) for critical applications.

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Why Choose Our A286 Fasteners?

Our products are manufactured to precision tolerances, with rigorous quality control and full material traceability. We offer:

· Optimized Heat Treatment: Solution annealing and aging processes tailored to maximize strength and corrosion resistance.

· Custom Solutions: Available in non-standard sizes (e.g., M4 to M100) and surface treatments (e.g., electropolishing).

· Global Compliance: Certifications include ASME, ASTM, and NADCAP for aerospace and energy sectors.

Keywords: A286 fasteners, A286 bolts, A286 screws, A286 nuts, A286 washers, A286 stud bolts, A286 threaded rods, A286 rivets, precipitation-hardening superalloy, high-temperature fasteners, corrosion-resistant fasteners, aerospace fasteners, automotive fasteners, oil and gas fasteners.

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Engineered for Reliability Where Performance Matters Most.

Contact us today for technical specifications or a customized quote!