A286 Fasteners Manufacturer in India
A286 Fasteners, A286 Bolts, A286 Stud Bolts, A286 Threaded Rod, A286 Nuts, A286 Hex Bolts, A286 Washers and A286 Screws
Jade Alloys is an A286 bolts and fasteners manufacturer and supplier in India. A286, also called Alloy 660, UNS S66286 or Werkstoff 1.4980 is a precipitation-hardening iron-nickel-chromium superalloy. It is the material engineers turn to when an ordinary fastener would soften, creep or corrode. Once age hardened, A286 bolts hold high tensile and creep-rupture strength from room temperature up to about 700 degrees Celsius and resist oxidation to around 815 degrees Celsius. They are also mildly corrosion resistant, non-magnetic and stay ductile at cryogenic temperatures down to -196 degrees Celsius.
This combination makes A286 fasteners the standard choice for the hottest and most critical joints. You find A286 bolts in jet engines, gas turbines, exhaust and manifold systems, high-pressure turbine and compressor parts, superchargers, offshore oil and gas equipment and power-generation plants. Where stainless steel fasteners lose strength with heat, A286 keeps its grip, so maintenance and the risk of a joint failure both fall over the life of the equipment.
We manufacture the complete range of A286 fasteners, including hex bolts, heavy hex bolts, stud bolts, threaded rod, nuts, washers and socket screws, to ASTM A453 Grade 660, ASTM A638 and ASTM F2281. Each fastener is forged, machined and age hardened in-house, so the strength and the heat treatment are controlled at every step rather than bought in. They are made from the same A286 round bar and plate we supply, which keeps material traceability running end to end.
Every order of A286 bolts and fasteners carries an EN 10204 3.1 mill test certificate, with PMI, mechanical and third-party inspection available on request. We hold ready stock, make custom sizes to drawing, and export across the Gulf, Southeast Asia and Europe.
A286 Fasteners Specification
| Property | Details |
|---|---|
| Grade | A286 / Alloy 660 / UNS S66286 / 1.4980 |
| Specifications | ASTM A453 Gr 660, ASTM A638, ASTM F2281, ASME SA453 |
| Standards | DIN, ISO, JIS, GB, IS, BS and all international standards |
| Bolt / Screw Size | M3 to M100, 3/8″ to 4″, custom sizes |
| Nut Size | M3 to M56, 3/8″ to 2″ |
| Washer Size | M3 to M56, 3/8″ to 2″ |
| Length | 3 mm to 200 mm, custom |
| Dimensions | DIN 931, 933, 934, 976, 125, ASME B18.2.1, B18.3 |
| Threads | Metric, UNC, UNF, BSW, BSF, or as required |
| Surface Coating | Plain, Passivated, Black Oxide, Zinc, Cadmium, PTFE / Xylan |
| Certification | Dual certified to ASTM & ASME; EN 10204 3.1 |
Types of A286 Fasteners & Bolts
We produce A286 fasteners in every common form for high-temperature and high-strength bolting.
A286 Bolts
Hex, Heavy Hex, Square Head, Socket Head Cap, Countersunk, Flange, Eye, U, J, Carriage, Allen, 12-Point
A286 Stud Bolts
Stud bolts, double-end studs, threaded rod, tap-end studs
A286 Nuts
Hex, Heavy Hex, Jam, Coupling, Castle, Nyloc, Cap, Lock, Square, Wing
A286 Washers
Plain, Flat, Spring, Fender, Square, Structural
A286 Screws
Socket, Machine, Set, Self-drilling, Grub
A286 Chemical Composition
Chemical composition of A286 (UNS S66286) fasteners, in percent.
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.025 max |
| Sulphur (S) | 0.025 max |
| Chromium (Cr) | 13.50 to 16.00 |
| Nickel (Ni) | 24.00 to 27.00 |
| Molybdenum (Mo) | 1.00 to 1.50 |
| Titanium (Ti) | 1.90 to 2.35 |
| Aluminium (Al) | 0.35 max |
| Vanadium (V) | 0.10 to 0.50 |
| Boron (B) | 0.003 to 0.010 |
| Iron (Fe) | Balance |
A286 Mechanical Properties & ASTM A453 Grade 660 Classes
A286 bolts are age hardened to high strength. ASTM A453 Grade 660 splits the grade into four classes by heat treatment. Classes A, B and C share the same minimum strength, while Class D has a higher yield.
| Class | Tensile (min) | Yield 0.2% (min) | Elongation (min) | Hardness |
|---|---|---|---|---|
| Class A / B / C | 130 ksi (895 MPa) | 85 ksi (585 MPa) | 15% | 248 to 321 HB |
| Class D | 130 ksi (895 MPa) | 105 ksi (725 MPa) | 15% | 248 to 341 HB |
| Cold worked (on request) | 160 ksi (1100 MPa) | – | 12% | up to 36 HRC |
A286 Physical Properties
| Property | Value |
|---|---|
| Density | 7.92 g/cm³ (0.286 lb/in³) |
| Melting Range | 1371 to 1427 degrees C |
| Max Service Temperature | up to 700 degrees C (oxidation resistance to 815 degrees C) |
| Cryogenic Use | ductile down to -196 degrees C |
| Magnetic Response | Non-magnetic (austenitic, low permeability) |
| Modulus of Elasticity | 201 GPa at room temperature |
A286 Thermal Properties
Mean coefficient of thermal expansion of A286 across the working temperature range.
| Temperature | Coefficient (10-6 / °C) |
|---|---|
| 20 to 93 degrees C | 16.5 |
| 20 to 204 degrees C | 16.8 |
| 20 to 316 degrees C | 17.0 |
| 20 to 427 degrees C | 17.4 |
| 20 to 538 degrees C | 17.6 |
| 20 to 704 degrees C | 17.9 |
A286 Equivalent Grades
| Standard | Designation |
|---|---|
| UNS | S66286 |
| Werkstoff / DIN | 1.4980 |
| AISI | 660 |
| ASTM | A453 Gr 660, A638, F2281 |
| AMS | 5731, 5732, 5737, 5525, 5726 |
| EN | X6NiCrTiMoVB25-15-2 |
A286 Hex Bolt Dimensions
Hex bolt dimensions for A286 bolts, in inches. Stud, nut and washer dimensions are available on request.
| Bolt Size | Width Across Flats (F) | Width Across Corners (G) | Head Height (H) |
|---|---|---|---|
| 1/4″ | 0.438 | 0.505 | 0.163 |
| 5/16″ | 0.500 | 0.577 | 0.211 |
| 3/8″ | 0.562 | 0.650 | 0.243 |
| 1/2″ | 0.750 | 0.866 | 0.323 |
| 5/8″ | 0.938 | 1.083 | 0.403 |
| 3/4″ | 1.125 | 1.299 | 0.483 |
| 7/8″ | 1.312 | 1.516 | 0.563 |
| 1″ | 1.500 | 1.732 | 0.627 |
| 1-1/4″ | 1.875 | 2.165 | 0.780 |
| 1-1/2″ | 2.250 | 2.598 | 0.940 |
A286 Fastener Coatings & Finishes
A286 fasteners are usually supplied passivated or self-colour, and with a coating where the service calls for it.
- Passivated / Self-colour
- Black Oxide
- Zinc Plated
- Cadmium Plated
- PTFE / Xylan Coated
- Silver or Nickel Plated (for anti-galling at high temperature)
A286 Fasteners Applications
A286 bolts and fasteners are used wherever strength has to hold at high temperature, including jet engines and gas turbines, exhaust and manifold systems, high-pressure turbine and compressor parts, offshore oil and gas equipment, power generation, chemical processing, and non-magnetic and cryogenic equipment. They are also chosen with our
ASTM A453 Grade 660 bolts and stud bolts for high-temperature flange bolting sets.
A286 Bolts Price
Indicative A286 bolt and fastener prices by thread size. Final price depends on form, size, quantity and raw-material rates. Contact us for a firm quotation.
| Product | Thread Size | Indicative Price (US$) |
|---|---|---|
| A286 Hex Bolt | M6 to M16 | 0.20 to 2.00 / pc |
| A286 Hex Cap Screw | M4 to M16 | 3.20 to 3.60 / pc |
| A286 Stud Bolt with 2 Hex Nuts | M24 | 10.50 to 12.00 / set |
| A286 Bolts, Nuts & Screws | M6 to M16 | 0.20 to 0.50 / pc |
Frequently Asked Questions - A286 Bolts
1. What are A286 bolts made of?
2. What is the equivalent of A286?
3. Are A286 bolts magnetic?
4. What is the yield strength of A286 bolts?
5. What temperature can A286 bolts withstand?
Request a A286 Bolts & Fasteners Quote
Tell us the form, grade class, size and quantity you need and get a same-day quote. We hold ready stock, make custom sizes to drawing, and supply every order with EN 10204 3.1 certification. Request a Quote or email sales@jadealloys.com for pricing and lead time.
