ASTM A453 Grade 660 Fasteners are high-strength hardware components made from a specialized alloy known as Grade 660 or A286. This alloy is a precipitation-hardening stainless steel with a unique chemical composition that includes iron, nickel, chromium, and other elements. The chemical composition of ASTM A453 Grade 660 typically includes 24-27% nickel, 13.5-16% chromium, 1.3-2.2% titanium, 1-1.5% aluminum, and small amounts of molybdenum, vanadium, and other elements. The controlled additions of titanium and aluminum promote the formation of the A286 alloy's desirable properties during heat treatment.


One of the key features of ASTM A453 Grade 660 Fasteners is their exceptional high-temperature strength and mechanical properties. They offer excellent tensile strength, fatigue resistance, and creep strength, making them ideal for applications in high-temperature environments such as gas turbines, jet engines, and exhaust systems.


A453 Gr 660 Nut, ASTM A453 Gr. 660 Fasteners, A453 Gr.660 Nut, ASTM A453 Gr.660 Stainless Steel Bolt, UNS 66286 Threaded Rod, A453 Gr.660 Hex Bolts, A453 Gr.660 Hex Head Bolts, A453 Gr.660 Shoulder Bolts, ASTM A453 Gr.660 Bolts Manufacturers in India.


ASTM A453 Fasteners
  • UNS

    S66286

  • WNR

    1.4980

  • ASTM / ASME

    ASTM A453, ASME SA453

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Corrosion resistance is another significant advantage of ASTM A453 Grade 660 Fasteners. The alloy's high chromium content provides good resistance to a wide range of corrosive media, including acidic and chloride-rich environments. This makes them suitable for applications in chemical processing plants, where exposure to corrosive chemicals is common.


Corrosion resistance is another significant advantage of ASTM A453 Grade 660 Fasteners. The alloy's high chromium content provides good resistance to a wide range of corrosive media, including acidic and chloride-rich environments. This makes them suitable for applications in chemical processing plants, where exposure to corrosive chemicals is common.


A453 Fasteners Suppliers, ASME SA453 Alloy A453 Hex Nuts, DIN 1.4980 Tab Washer, Alloy A453 T Nuts, UNS S66286 Plain Washer, A453 Alloy Rivet Nuts, ASTM A453 Gr 660 Stainless Steel Bolt, Alloy A453 Fasteners Manufacturers in India.


fevicon-logo Alloy A453 Bolts and Nuts Specification

Specifications ASTM A453, ASME SA453
Standard DIN, ASTM, BS and all International Standards
Size M3 to M90
Length 10mm to 1000mm
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads available UNF, BSW, BSF, METRIC, UNC, or as required
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Form Hex, Threading, Square, Round as per Gauge Etc.
Head Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc.
Neck type Hex, Square, Triangular, Oval & Knurled etc.
Surface Coating Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request
Manufacturing Process Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing.

Additionally, ASTM A453 Grade 660 Fasteners are utilized in the oil and gas industry for downhole applications and drilling equipment, where resistance to high pressures and harsh conditions is essential. They are also employed in chemical processing plants, desalination facilities, and power generation facilities for fastening critical equipment, valves, and fittings that require excellent high-temperature performance and corrosion resistance.


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fevicon-logo Equivalent Grades Of Alloy ASTM A453 Fasteners

UNS No DIN xxx Grade
UNS S66286 DIN 1.4980 Alloy 1.4943 Grade 660

fevicon-logo Chemical Composition of Alloy A453 Fasteners


Element
Content %
Grade 660 UNS S66286
Carbon 0.08 max
Manganese 2.00 max
Phosphorus 0.04 max
Sulfur 0.03 max
Silicon 1.00 max
Nickel 24.00 - 27.00
Chromium 13.50 - 16.00
Molybdenum 1.00 - 1.50
Titanium 1.90 - 2.35
Aluminum 0.35 max
Vanadium 0.10 - 0.50
Boron 0.001 - 0.010

fevicon-logo Mechanical Properties of Alloy A453 Fasteners

Grade Class Tensile Strength Yield Strength Elongation
in 4D, min, %
Reduction
of Area, min, %
Brinell
Hardness
Number
Approximate
Rockwell
Hardness, B & C
Ksi Mpa Ksi Mpa min max
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

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fevicon-logo Types of Alloy A453 Fasteners

Nut

Alloy A453 Nuts

Bolt

Alloy ASTM A453 Bolt

Washers

Alloy A453 Washer

Stud Bolts

Alloy A453s Stud Bolts

Hex Bolt

Alloy A453 Hex Bolt

Threaded Rod

Alloy A453 Threaded Rod

Anchor Bolt

Alloy A453 Anchor Bolt

Spring Washer

Alloy A453 Spring Washer


Fasteners Manufacturers In India

  • 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


fevicon-logo Other Types Of Alloy A453 Fastener

UNS S66286 Hex Head Fasteners Alloy A453 Nuts and Fasteners
Alloy A453 Square Fasteners Alloy A453 Star Fasteners
Alloy A453 Flat Washer Alloy A453 Fasteners and Nuts
Alloy WERKSTOFF NR. 1.4980 Flat Washers Alloy A453 Nuts
Alloy A453 U Fasteners Alloy A453 Lag Fasteners
Alloy A453 T Fasteners Alloy A453 Alloy Hex Head Nut

fevicon-logo Alloy A453 Fastener Application Industries

Aerospace Industry
Nuclear Industry
MEdical Industry
Marine Industry
Mining Industry
Automotive Industry
Construction Industry
Manufacturing Industry
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