Exotic Alloys Alloy A286 Fasteners Overview
Zeon Exports supplies Exotic Alloy A286 (UNS S66286) fasteners – bolts, nuts and studs – an iron-nickel-chromium precipitation-hardening superalloy combining high strength with good oxidation resistance up to 704°C, for aerospace and gas turbine bolted joints.
Exotic Alloy A286 Fasteners secure high-temperature, high-strength bolted connections in jet engines, gas turbines and oil & gas equipment. Its titanium-driven precipitation hardening gives high tensile and yield strength while retaining good oxidation resistance in continuous service up to 704°C, making it a preferred choice wherever standard stainless steel bolting lacks sufficient high-temperature strength.
- Age-hardened via titanium for very high strength
- Tensile ≥895 MPa, yield ≥655 MPa in Class A condition
- EN 10204 3.1 certified, export-ready worldwide
Quick Specifications of Exotic Alloys Alloy A286 Fasteners
Exotic Alloy A286 Fasteners are produced to internationally recognized bolting specifications.
| Field | Detail |
|---|---|
| Material/Grade | Exotic Alloy A286 |
| UNS | S66286 |
| DIN/Werkstoff Number | 1.4980 |
| Standards | ASTM A453 Grade 660 (Class A/B), AMS 5731/5732/5737 |
| Form | Bolts, Nuts, Studs |
| Finish | As specified (confirm on order) |
| Heat Treatment | Solution Treated + Aged |
| Certification | EN 10204 3.1 |
Equivalent Grades of Alloy A286
Alloy A286 is recognized under several international designations below.
| UNS | DIN/Werkstoff Number | Common Trade Name | ASTM/ASME Standard |
|---|---|---|---|
| S66286 | 1.4980 | A-286 / Iron Alloy 660 / Incoloy A286 | ASTM A453 Gr. 660 |
Chemical Composition of Alloy A286
Composition per ASTM A453 Grade 660 for UNS S66286; exact limits can vary slightly by specification and heat.
| Element | Composition (%) |
|---|---|
| Iron (Fe) | Balance (~53% nominal) |
| Nickel (Ni) | 24.0 – 27.0 |
| Chromium (Cr) | 13.5 – 16.0 |
| Molybdenum (Mo) | 1.0 – 1.5 |
| Titanium (Ti) | 1.90 – 2.35 |
| Vanadium (V) | 0.10 – 0.50 |
| Boron (B) | 0.001 – 0.010 |
| Carbon (C), max | 0.08 |
| Manganese (Mn), max | 2.00 |
| Silicon (Si), max | 1.00 |
| Aluminum (Al), max | 0.35 |
Physical Properties of Exotic Alloy A286
Physical properties for A286, confirmed against manufacturer data.
| Property | Value |
|---|---|
| Density | 7.94 g/cm3 |
| Melting Range | Confirm against applicable datasheet |
| Magnetic Behaviour | Non-magnetic (both ST and aged conditions) |
Mechanical Properties of Exotic Alloys Alloy A286 Fasteners
Minimum mechanical properties by class per ASTM A453 Grade 660.
| Property | Class A (Min) | Class B (Min) |
|---|---|---|
| Yield Strength (0.2% offset) | 655 MPa (95 ksi) | 585 MPa (85 ksi) |
| Tensile Strength | 895 MPa (130 ksi) | 825 MPa (120 ksi) |
| Hardness | 248 – 341 HB | Per spec |
| Condition | Solution Treated + Aged | Solution Treated + Aged |
Corrosion Resistance of Exotic Alloy A286
- Exotic Alloy A286 Fasteners combine corrosion resistance with high strength retained at elevated temperature.
- Oxidation resistance: stable in continuous service up to 816°C and intermittent service up to 982°C.
- Pitting and crevice resistance: chromium content gives moderate resistance similar to austenitic stainless steel.
- Non-magnetic: remains non-magnetic even after severe cold working, useful near magnetic-sensitive equipment.
Heat Resistance of Exotic Alloy A286
Exotic Alloy A286 fasteners perform reliably in continuous service up to roughly 704°C (1,300°F), with oxidation resistance extending to 816°C continuous and 982°C intermittent exposure. Confirm the exact heat treatment condition and service limits against the governing standard before specifying.
Key Properties of Exotic Alloys Alloy A286 Fasteners
Beyond corrosion and heat performance, A286 fasteners offer these additional properties.
- Very high strength via titanium-driven precipitation hardening
- Good creep resistance at elevated temperature
- Excellent resistance to hydrogen embrittlement
- Good weldability and fabricability for a precipitation-hardening alloy
Benefits of Exotic Alloys Alloy A286 Fasteners
Choosing A286 fasteners from Zeon Exports delivers measurable advantages for your project.
- Proven aerospace-grade strength at a lower cost than nickel superalloys
- Full MTC 3.1 documentation for project QA/QC requirements
- Multiple sizes, threads and finishes to match exact project specs
- Reliable bulk supply with consistent ready stock
- Competitive export pricing for large industrial orders
- Fast dispatch to global project sites and ports
Related Products
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Request a Quote for Exotic Alloys Alloy A286 Fasteners
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Frequently Asked Questions About Exotic Alloys Alloy A286 Fasteners
Common questions about Exotic Alloy A286 Fasteners, answered below.
Q1: What is Exotic Alloy A286?
Ans. A286 (UNS S66286) is an iron-nickel-chromium precipitation-hardening superalloy with titanium additions for high strength.
Q2: What standards do A286 fasteners meet?
Ans. Fasteners are manufactured to ASTM A453 Grade 660 (Class A/B), certified to EN 10204 3.1 mill test certificates.
Q3: What is the maximum service temperature?
Ans. A286 performs reliably in continuous service up to roughly 704°C (1,300°F); confirm exact limits against your design code.
Q4: Is A286 magnetic?
Ans. No, A286 is non-magnetic in both solution-treated and aged conditions, even after severe cold working.
Q5: Is A286 suitable for jet engine fasteners?
Ans. Yes, A286 is one of the most widely used alloys for jet engine, gas turbine and aerospace fasteners.
Q6: What is the difference between Class A and Class B?
Ans. Class A (sol 1650°F + aged) gives higher yield strength than Class B (sol 1800°F + aged); confirm the class required for your application.
Q7: What certification is provided with orders?
Ans. Every order ships with EN 10204 3.1 mill test certificates confirming grade, heat and dimensions.
Q8: Does Zeon Exports supply custom sizes?
Ans. Yes, fasteners are available in custom thread sizes and lengths on request for bulk industrial orders.
