Hardness testing to ISO 6508-1
ASTM A453 Grade 660, commonly known as A286, is a high-strength superalloy that is often used in demanding applications, particularly in the aerospace and petrochemical industries. ASTM A453 Grade 660 is renowned for its exceptional high-temperature stability, corrosion resistance, and mechanical properties, making it an ideal material for critical components such as hex nuts.
ASTM A453 Grade 660 hex nuts offer several key advantages. Firstly, their high-temperature resistance is noteworthy, with ASTM A453 Grade 660 retaining its strength and integrity at temperatures as high as 1300°F (704°C). This characteristic makes it invaluable in situations where extreme heat and pressure are present, such as gas turbine and jet engine components. The alloy's resistance to oxidation and sulfidation further enhances its suitability for high-temperature applications.
ASTM A453 Grade 660 is also highly corrosion-resistant, making it suitable for use in harsh environments, including marine, chemical, and industrial settings. Its resistance to pitting and crevice corrosion, coupled with excellent mechanical properties, ensures the reliability and longevity of components like hex nuts.
The mechanical properties of ASTM A453 Grade 660 hex nuts are exceptional. They exhibit high tensile strength, good ductility, and outstanding fatigue strength. These attributes translate to robust fasteners that can withstand heavy loads and cyclic stresses. ASTM A453 Grade 660 6hex nuts are capable of maintaining their performance over long periods, reducing the need for replacements and maintenance, which is particularly advantageous in critical applications where safety and reliability are paramount.
|Specifications||ASTM B453 / ASME SB453|
|Size|| Cold Forming process: M2-M24
Hot Forging process: M24-M100, 1-1/2” Dia, up to 1100mm lg
CNC Machining for M100 / 4” Dia, up to 1500mm lg
Manufacturing M2, M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M42, M45, M48 to M160 and Custom Metric Hex Nuts
|Hex Nut Sizes Metric||Dia: M10 – M110 / Length: 12 – 1200MM|
|Hex Nuts Size Inch||Dia: 1/2″ – 4.0″ / Length: 1/2″ – 52″|
|Length||3 to 200 mm|
|Types||Heavy Hex Nuts, Large Heavy Hex Nuts, Heavy Hex Jam Nut, Heavy Hex Coupling Nut, Heavy Duty Hex Nuts|
|DIN Standard||DIN 934, DIN 982, DIN 985, DIN 936, DIN 929, DIN 1587, DIN 439, DIN 315|
|Dimensions||ASME B18.2.2 Heavy Hex Nuts, ASME B18.104.22.168M Metric Heavy Hex Nuts, ASME B18.16.6 / ASME B18.16.4 / ASME B18.2.2|
|Threads||METRIC, BSW, UNC, UNF, BSF or as required|
|Hex Nuts Forming||Hot Forged Hex Nuts & Cold Forged Hex Nuts|
|UTS – Unified Thread Standard||UNC, UNF, NPT, UNS, UNEF, NPTF|
To preserve the high standards of our selection of industrial hex nuts, we have always adhered to a systematic quality management process.
Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of hex nuts.
|ASTM A453 Gr. 660||-||S66286|
|Grade 660 UNS S66286|
|Nickel||24.00 - 27.00|
|Chromium||13.50 - 16.00|
|Molybdenum||1.00 - 1.50|
|Titanium||1.90 - 2.35|
|Vanadium||0.10 - 0.50|
|Boron||0.001 - 0.010|
|Grade||Class||Tensile Strength||Yield Strength||Elongation
in 4D, min, %
of Area, min, %
Hardness, B & C
|Grade 660||A, B and C||130||895||85||585||15||18||248-341||24 HRC||37 HRC|
|Grade 660||D||130||895||105||725||15||18||248-341||24 HRC||35 HRC|
Hardness testing to ISO 6508-1
Nut proof load testing to ISO 898-2
Suitability for preloading to EN 14399-2
Calibrated gauges and tools
|ASTM A453 Gr.660 Hex Nuts Supplier in Mumbai||A453 Gr.660 Class A Hex Nuts Manufacturer|
|ASTM A453 Gr.660 Hex Nuts Stockist in Mumbai||Alloy Gr 660 Hex Nuts Stockist|
|Alloy Grade 660 CL B Hex Nut Supplier in India||A453 Gr.660 Hex Thin Nuts|
|ASTM A453 Gr.660 CL.D Hex Nut Suppliers||ASTM A453 Gr.660 Industrial Hex Nuts|
|ASTM A453 Grade 660 Hex Nuts Stockist in India||A453 Gr.660 Class A Hexagon Dome Nuts|
|Alloy S66286 Hex Nut||ASTM A453 Gr 660 Hexagonal Nuts|
|ASTM A453 Grade 660 CL B Slotted Hex Nuts||Alloy Gr.660 Hex Nuts Manufacturer in Mumbai|
|ASTM A453 Gr 660 Hex Nuts Manufacturer in India||High Quality A453 Grade 660 Hex Nuts|