Specifications
Surface Treatments
Certifications
- ISO 9001 - 2015 Certified
- PED 2014/68/EC
- NACE MR0175/ISO 15156-2
- NORSOK M-650
- DFAR
- MERKBLATT AD 2000 W2/W7/W10
A286 Fasteners
A286 Fasteners being an austenitic
age-hardenable iron based super alloy stainless steel that is melted as AOD + ESR, AOD
+ VAR, or VIM + VAR is manufactured at TorqBolt. Cres-A286 fasteners have excellent
strength even at high temperatures up to 1500 Degrees Fahrenheit. Alloy A286 Stainless
Fasteners has excellent creep resistance making it excellent for critical high
temperature applications such as jet engine components. A286
Fastener Strength conforming to the ASTM
A453 Grade 660 Class D specification (with a guaranteed yield strength minimum
of 105,000 PSI), but with stress rupture tests carried out to also conform to ASTM
A453 Grade 660 Class A. These provide a tensile strength of 895 MPa (minimum),
0.2% offset yield strength of 725 MPa (minimum), elongation of 15% and reduction of
area of 18%. Hardness is in the range 29-35 HRC.
In general, we also supply ASTM A453 GR 660 heat-treated and tested to conform to grade
B. This provides a tensile strength of 895 MPa (minimum), a lower 0.2 offset yield
strength of 585 MPa (minimum), elongation of 15% and reduction of area of 18%. Hardness
is in the range 24-37 HRC.
A286 Fastener Families, Browse by Product Type
TorqBolt manufactures Alloy A286 (UNS S66286 / DIN 1.4980) fasteners across every product family. Each family has its own dedicated reference page with full chemistry, mechanical, AMS / ASTM / NAS specifications, applications and FAQ:
- A286 Bolts, Hex, CRES, socket head, shoulder, metric, NAS, stud bolts in M5-M64 / 1/4"-2-1/2". Solution-treated and aged per ASTM A453 grade 660.
- A286 Screws, Socket head cap screws (SHCS), CRES, flat-head countersunk, metric, button-head screws in M3-M48 / #4-1-1/2".
- A286 Nuts, Hex nuts (Type 1 standard, Type 2 heavy), self-locking nuts, lock nuts per DIN 934 / ISO 4032 / 4033, ASME B18.2.2.
- A286 Washers, Flat washers (DIN 125 / 9021 / ISO 7089), lock washers (split-ring, Belleville, tooth) in M3-M64 + #4-2".
- A286 Stud Bolts, Full-thread and partial-thread stud bolts for ASME B16.5 flange joints, ASTM A453 grade 660 high-temperature bolting.
- A286 Solid Rivets, Universal, brazier, flat, countersunk and tubular rivets to NAS, MS, MIL-SPEC.
- A286 Dowel Pins, Precision-ground cylindrical pins per ISO 8734 / DIN 7 / DIN 6325 / ASME B18.8.2 in 3-50 mm / 1/16-1 inch with h7 / m6 / k6 tolerance.
All A286 fasteners are forged or stamped from A286 bar stock or sheet, heat-treated per A286 heat treatment, and certified per the same A286 chemical composition and A286 mechanical properties.
Cres A286 Fastener Types
A286 Fasteners Grades
- ASTM A453 Grade 660 Class A
- ASTM A453 Grade 660 Class B
- ASTM A453 Grade 660 Class C
- ASTM A453 Grade 660 Class D
- ASME SA 453 Grade 660 Class A
- ASME SA 453 Grade 660 Class B
- ASME SA 453 Grade 660 Class C
- ASME SA 453 Grade 660 Class D
- ASTM A638 Grade 660 Type 1
- ASTM A638 Grade 660 Type 2
- ASME SA 638 Grade 660 Type 1
- ASME SA 638 Grade 660 Type 2
- ASTM A891 Grade 660 Type 1
- ASTM A891 Grade 660 Type 2
- ASME SA 891 Grade 660 Type 1
- ASME SA 891 Grade 660 Type 2
A286 Metric Fastener Size
| Dia. | Coarse | Fine |
|---|---|---|
| M10 | 1,5 | 1,25 |
| M12 | 1,75 | 1,5 |
| M14 | 2 | 1 |
| M16 | 2 | 1 |
| M18 | 2,5 | 1 |
| M20 | 2,5 | 1,25 |
| M22 | 2,5 | 1,25 |
| M24 | 3 | 1,25 |
| M27 | 3 | 1,5 |
| M30 | 3,5 | 1,5 |
| M33 | 3,5 | 2 |
| M36 | 4 | 3 |
| M39 | 4 | 3 |
| M42 | 4,5 | 3 |
| M45 | 4,5 | 3 |
| M48 | 5 | 3 |
| M52 | 5 | 3 |
| M56 | 5,5 | 4 |
| M64 | 6 | 4 |
A286 Fasteners Chemical Properties
| VdTÜV Werkstoffblatt 435 | DIN EN 10269 | ASTM A453 Grade 660 | |
|---|---|---|---|
| C, max. | 0,08 | 0,03 - 0,08 | 0,08 |
| Mn, max. | 2,00 | 1,00 - 2,00 | 2,00 |
| P, max. | 0,030 | 0,025 | 0,040 |
| S, max. | 0,030 | 0,015 | 0,030 |
| Si, max. | 1,00 | 1,00 | 1,00 |
| Cr | 13,5 - 16,0 | 13,5 - 16,0 | 13,5 - 16,0 |
| Ni | 24,0 - 27,0 | 24,0 - 27,0 | 24,0 - 27,0 |
| Mo | 1,00 - 1,50 | 1,00 - 1,50 | 1,00 - 1,50 |
| Ti | 1,9 - 2,3 | 1,90 - 2,30 | 1,90 - 2,35 |
| Al, max. | 0,35 | 0,35 | 0,35 |
| V | 0,10 - 0,50 | 0,10 - 0,50 | 0,10 - 0,50 |
| B | 0,003 - 0,010 | 0,003 - 0,010 | 0,001 - 0,010 |
A286 Fasteners Mechanical Properties
| 0.2% Yield strength Rp | Tensile strength Rm | Elongation A5 | Resistant on air up to | Modulus of elasticity |
|---|---|---|---|---|
| ≥ N/mm² | N/mm² | ≥ % | °C | kN/mm² |
| 635 | 930-1180 | 12 | 820 | 200 |
Types of A286 Fasteners
A286 Fasteners Specifications
- AECMA PrEn2171
- AECMA PrEN2119
- AECMA PrEN2172
- AECMA PrEN2173
- AECMA PrEN2174
- AECMA PrEN2303
- AECMA PrEN2304
- AECMA PrEN2398
- AECMA PrEN2399
- AECMA PrEN3510
- ASME SA 891 (Type 1, 2)
- ASME SA 638 (Grade 660 Type 1, 2)
- ASME SA 453 (Grade 660 Class A, B, C, D)
- ASTM A891 (Type 1, 2)
- ASTM A638 (Grade 660 Type 1, 2)
- ASTM A453 (Grade 660 Class A, B, C, D)
- ASTM B637
- BS HR 51
- BS HR 52
- X5NiCrTi26-15 (DIN 1.4980)
- X4NiCrTi25-15
- X6NiCrTiMoVB25-15-2
- GE C50TF78
- GE C50TF27
- GE C50TF20
- GE B50T1181C
- UNS S66286
- SAE J467-A286
- SPS M-118
- Fairchild MS 301
- 314 Elliott Turbine MS 618 Weatherford WS-881
- Cameron MS-003030
- EN 2399
- PWA-LCS
- GE-S400/1000
- RR SABRe Edition 2
- EN 1.4944
- EN 1.4943
- EN 1.4980
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