Aanuraj Fasteners Private Limited
Aanuraj Fasteners Private Limited
Vasai, Palghar, Maharashtra
GST No. 27AARCA3096L1Z0
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ASTM A453 GR.660- A-B-C-D- Studs Bolt Nuts

ASTM A453 Grade 660 class A/B/C/D Hex Bolts, Studs bolts Nuts and Washers.

- **High Strength**: ASTM A453 Grade 660 studs and bolts offer exceptional tensile strength, making them suitable for high-pressure and high-temperature applications where strength and reliability are crucial.

- **Corrosion Resistance**: This grade exhibits excellent corrosion resistance, particularly in harsh environments containing corrosive elements such as acids, chlorides, and sulfides, enhancing the longevity and performance of studs and bolts in corrosive conditions.

 

- **Temperature Resistance**: ASTM A453 Grade 660 studs and bolts maintain their mechanical properties at elevated temperatures, making them suitable for use in applications where exposure to extreme heat or thermal cycling is common, ensuring reliable performance under challenging conditions.

Dimensions Standard

ASME B18.2.1, B18.3

Threads Process

ROLL THREADING

Threads Configuration

Inches :ASME B1.1 2A/3A Unified Threads

Metric : B1.13M 6h Coarse Threads

Mill Origin

Europe/USA/BRAZIL/Japan

Product Origin

Made in India

Certification

Dual Certified As per ASTM & ASME Codes

Additional Requirements

NACE MR0103/MR0175/ISO 15156 Compliance

Mandatory Requirements

Free from Mercury & Radioactive Contamination


Please download PDF attached herewith for
ASTM A 453 GR.660 CLASS A /B/C/D
Chemical composition details & Mechanical Properties.

#ASTMA453, #Grade660, #StudsAndBolts, #HighStrengthAlloy, #CorrosionResistant, #HighTemperatureApplications, #IndustrialFasteners, #SuperAlloy, #EngineeringMaterials, #ReliablePerformance



ASTM A453 Gr.660 Heavy Hex Nut 1.5/8

ASTM A453 Gr.660 Heavy Hex Nut 1.5/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.5/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.5/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.5/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.5/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.5/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.5/8
Get Best Quote
Approx. Price: Rs 800 / PieceGet Latest Price
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Product Details:

Minimum Order Quantity80 Piece
Diameter40 mm
ShapeHexagonal
StandardASTM A 453 GRADE 660
ThicknessCUSTOMER SPECIFICATION
SizeM10-M100,3/8"- 4"
Material GradeASTM A453 GRADE 660 CLASS A B C D
MaterialASTM A453 GRADE 660 CLASS A B C D
GradeASTM A453 GRADE 660 CLASS A B C D
Finishing TypeBRIGHT
ColorBRIGHT
Quantity Per PackCUSTOMER SPEC
Usage/ApplicationOIL AND GAS INDUSTRIES
Bolt TypeHEX
BrandRAJ
Country of OriginMade in India

We are into mfg of ASTM A 453 GR. 600 Heavy Hex Nuts.Technical details as follows.

ASTM A453 Grade 660 Class A/B/C/D Mechanical Properties
GradeClassTensile StrengthYield StrengthElongation
in 4D, min, %
Reduction
of Area, min, %
Brinell
Hardness
Number
Approximate
Rockwell
Hardness, B & C
KsiMpaKsiMpaminmax
Grade 660A, B and C130895855851518248-34124 HRC37 HRC
Grade 660D1308951057251518248-34124 HRC35 HRC
ASTM A453 Grade 660 Class A/B/C/D Heat Treatment Requirements

 

GradeClassSolution TreatmentHardening Treatment
Grade 660A1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool
Grade 660B1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool
Grade 660C1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and oil quench1425 +/- 25° F [775 +/- 14°C], hold 16 hr, air cool,
followed by 1200 +/- 25°F [650 +/- 14°C], air cool
Grade 660D1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench
1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench
1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool, 
If required to achieve properties, second age: 
1200 +/- 25°F [650 +/- 14°C], air cool

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  • Production Capacity: EX-STOCK
  • Delivery Time: 7 TO 30 DAYS
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ASTM A453 Gr.660 Heavy Hex Nut 1.3/8

ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/8
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Approx. Price: Rs 455 / PieceGet Latest Price
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Product Details:

Minimum Order Quantity50 Piece
Diameter40 mm
ThicknessCUSTOMER SPECIFICATION
Material GradeASTM A453 GRADE 660 CLASS A B C D
TypeHeavy Hex Nuts
ShapeHexagonal
Size1.3/8" X 8UNC
GradeASTM A453 GRADE 660 CLASS A B C D
MaterialASTM A453 GRADE 660 CLASS A B C D
Packaging TypeCUSTOMER SPECIFICATION
Finishing TypeBRIGHT
ColorBRIGHT
Quantity Per Pack10
FeaturesBRIGHT
Usage/ApplicationOIL AND GAS INDUSTRIES .VALVES
Bolt TypeHEX
BrandRAJ
Country of OriginMade in India

  • We have ready stock of 1.3/8" - 1000Nos Heavy Hex Nut of material ASTM A453 Gr.660 in only Rs.455/-

 

Specifications:

ASTM A453 Grade 660 Class A/B/C/D Mechanical Properties
GradeClassTensile StrengthYield StrengthElongation
in 4D, min, %
Reduction
of Area, min, %
Brinell
Hardness
Number
Approximate
Rockwell
Hardness, B & C
KsiMpaKsiMpaminmax
Grade 660A, B and C130895855851518248-34124 HRC37 HRC
Grade 660D1308951057251518248-34124 HRC35 HRC
ASTM A453 Grade 660 Class A/B/C/D Heat Treatment Requirements

 

GradeClassSolution TreatmentHardening Treatment
Grade 660A1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool
Grade 660B1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool
Grade 660C1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and oil quench1425 +/- 25° F [775 +/- 14°C], hold 16 hr, air cool,
followed by 1200 +/- 25°F [650 +/- 14°C], air cool
Grade 660D1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench
1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench
1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool, 
If required to achieve properties, second age: 
1200 +/- 25°F [650 +/- 14°C], air cool

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  • Production Capacity: EX-STOCK
  • Delivery Time: 7-15 DAYS
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ASTM A453 Gr.660 Heavy Hex Nut 1.7/8

ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.7/8
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Approx. Price: Rs 1,760 / PieceGet Latest Price
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Product Details:

Minimum Order Quantity25 Piece
Nut TypeDrilling
Size1.7/8"
ShapeHexagonal
MaterialASTM A453 GRADE 660 CLASS A B C D
BrandRAJ
Country of OriginMade in India

ASTM A453 Grade 660 Nuts and Bolts – Chemical &Mechanical Properties, Applications, andDescriptionProduct Description:ASTM A453 Grade 660 nuts and bolts are high-temperature, high-strength fasteners manufacturedfrom austenitic stainless steel. Primarily used in pressure vessels, turbine engines, and heatexchangers, these fasteners are designed for high stress and elevated temperature environmentsup to 1000°F (538°C). They are categorized into four classes (A, B, C, and D) based on tensilestrength requirements after solution annealing and aging treatment.Chemical Composition (%):Element Content (%)Chromium (Cr) 24.0 – 27.0Nickel (Ni) 13.5 – 16.0Molybdenum (Mo) 1.0 – 1.5Titanium (Ti) 0.10 – 0.50Carbon (C) £ 0.10Manganese (Mn) £ 2.0Silicon (Si) £ 1.0Phosphorus (P) £ 0.04Sulfur (S) £ 0.03Iron (Fe) BalanceMechanical Properties:Class Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HRB)Class A 760 min 450 min 30 min £ 100Class B 850 min 585 min 25 min £ 100Class C 960 min 690 min 20 min £ 100Class D 1040 min 830 min 15 min £ 100Applications:- Steam and Gas Turbines – Withstand extreme heat and pressure- Nuclear Power Plants – Approved for high-radiation environments- Heat Exchangers – Reliable in thermal cycles- Aerospace Engines – High strength-to-weight ratio- Petrochemical Refineries – Excellent oxidation resistance- Pressure Vessels – Long-term mechanical reliability- Flanges and Piping Assemblies – Stable at elevated temperaturesFocus Keywords:ASTM A453 Grade 660 fasteners, Grade 660 stainless steel bolts, High temperature nuts and bolts,A453 Class A B C D nuts, Turbine engine fasteners, High tensile bolts India, Heat resistantfastenersSEO Meta Description:Buy ASTM A453 Grade 660 stainless steel nuts and bolts for high-temperature and high-stressapplications in turbines and reactors. Available in all classes A–D.Hashtags:#ASTMA453 #Grade660 #HighTempFasteners #StainlessSteelBolts #TurbineFasteners#NuclearFasteners #HeatResistantBolts #EngineeringMaterials #IndustrialFasteners#AerospaceBolts #AanurajFasteners #MadeInIndia

 

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Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5"

Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2.5
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Approx. Price: Rs 2,000 / KgGet Latest Price
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Product Details:

SizeHeavy Hex Nuts 2"
GradeASTM A 453 GRADE 660 CLASS A
Head TypeHEX
Country of OriginMade in India
MaterialsInconel 286

ASTM A453 Grade 660 Class A Heavy Hex Nuts are high-temperature, corrosion-resistant fasteners made from austenitic stainless steel.
They are ideal for bolting applications in pressure vessels, turbines, and high-temperature chemical equipment.
Chemical Composition includes high levels of Nickel (24–27%), Chromium (13–17%), and Molybdenum (1.5–1.9%) for superior oxidation resistance.
Mechanical Properties: Minimum tensile strength of 125 ksi (860 MPa), yield strength of 105 ksi (725 MPa), and excellent elongation and stress rupture values.
These nuts retain mechanical integrity up to 704°C (1300°F), ensuring long-term performance in demanding environments.
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Astm A453 Grade 660 Class A Heavy Hex Nuts 1.1/8"

Astm A453 Grade 660 Class A Heavy Hex Nuts 1.1/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.1/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.1/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.1/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.1/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.1/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.1/8
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Approx. Price: Rs 480 / PieceGet Latest Price
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Product Details:

StandardASTM A 453 GRADE 660 CLASS A
Diameter1.1/8" X 8UNC
INCHES1.1/8"
MaterialInconel
Country of OriginMade in India

ASTM A453 Grade 660 Class A Heavy Hex Nuts are high-temperature, corrosion-resistant fasteners made from austenitic stainless steel.
They are ideal for bolting applications in pressure vessels, turbines, and high-temperature chemical equipment.
Chemical Composition includes high levels of Nickel (24–27%), Chromium (13–17%), and Molybdenum (1.5–1.9%) for superior oxidation resistance.
Mechanical Properties: Minimum tensile strength of 125 ksi (860 MPa), yield strength of 105 ksi (725 MPa), and excellent elongation and stress rupture values.
These nuts retain mechanical integrity up to 704°C (1300°F), ensuring long-term performance in demanding environments.
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Astm A453 Grade 660 Class A Heavy Hex Nuts 1.3/8"

Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts  1.3/8
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Approx. Price: Rs 810 / PieceGet Latest Price
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Product Details:

Minimum Order Quantity50 Piece
SizeHeavy Hex Nut 1.3/8"
Quantity Per Pack48 nos
GradeASTM A 453 GRADE 660 CLASS A
Head TypeHEX
Country of OriginMade in India

ASTM A453 Grade 660 Class A Heavy Hex Nuts are high-temperature, corrosion-resistant fasteners made from austenitic stainless steel.
They are ideal for bolting applications in pressure vessels, turbines, and high-temperature chemical equipment.
Chemical Composition includes high levels of Nickel (24–27%), Chromium (13–17%), and Molybdenum (1.5–1.9%) for superior oxidation resistance.
Mechanical Properties: Minimum tensile strength of 125 ksi (860 MPa), yield strength of 105 ksi (725 MPa), and excellent elongation and stress rupture values.
These nuts retain mechanical integrity up to 704°C (1300°F), ensuring long-term performance in demanding environments.
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ASTM A453 GR.660 Studs Bolt Nuts Fasteners

ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
  • ASTM A453 GR.660 Studs Bolt Nuts Fasteners
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Approx. Price: Rs 1,900 / KgGet Latest Price
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Product Details:

Minimum Order Quantity50 Kg
GradeASTM A453 GRADE 660 CLASS A B C D
TypeFull Thread Studs
Material GradeASTM A453 GRADE 660 CLASS A B C D
SizeMatric and Inches,M10-M100
MaterialASTM A450 GR. 660
Usage/ApplicationOil And Gas Production industries,Offshore Industries
ColorSilver Grey
BrandRaj

ASTMA453 GR.660 A AND B Type Studs Bolt Nuts:

A286(ASTM A453 GR.660 ) is a precipitation hardening, austenitic stainless steel designed for use at temperatures up to 1300°F (704°C), where high tensile strength, excellent creep strength and good corrosion resistance are required.

AANURAJ INDUSTRIES are experts in the manufacture of all types of A286 fasteners, from A286 Hex Nuts, A286 Hex Bolts & A286(ASTM A453 GR.660 ) Studbolts through to complete special fasteners made to Drawings.

AI manufactured Special Fasteners in specification ASTM A453 660 are used in all types of applications including Oil production, Infrastructure,jet engines, gas turbines, and super-charger components.

Chemical Analysis:

CMnSiPSCrNiMoTiAlVB
Min-----13.52411.9-0.10.001%Max0.08210.040.0316271.52.350.350.50.01%

/--0.0004%

0.030.001
Specifications:

Material: Stainless Steel

Size: Customized

Temperature: 1300°F (704°C)

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Additional Information:

  • Item Code: ASTM-A453
  • Production Capacity: 2 tn per day
  • Delivery Time: 2 WEEKS
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ASTM A453 Gr.660 Heavy Hex Nut 1.1/8

ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
  • ASTM A453 Gr.660 Heavy Hex Nut 1.1/8
Get Best Quote
Approx. Price: Rs 300 / PieceGet Latest Price
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Product Details:

Minimum Order Quantity50 Piece
ShapeHeavy Hex Nuts
Packaging TypeWooden
Finishing TypeBuffing
Quantity Per Pack10
FeaturesASTM A453 GR. 660 GRADE A B C D
Product TypeHex Nuts
Diameter (mm)1.1/8"
Range1/2" - 3.5" UNC
StandardAstm
CoatingBright Buffed
Number Of Pieces2600
ConditionNew
BrandRAJ

We have ready stock of 1.1/8" - 2600Nos Heavy Hex Nut of material ASTM A453 Gr.660 in only Rs.290/- .

 

Specifications:

 

ASTM A453 Grade 660 Class A/B/C/D Mechanical Properties

Grade Class Tensile Strength Yield Strength Elongation

in 4D, min, %Reduction

of Area, min, %Brinell

Hardness

NumberApproximate

Rockwell

Hardness, B & CKsiMpaKsiMpaminmaxGrade 660A, B and C130895855851518248-34124 HRC37 HRCGrade 660D1308951057251518248-34124 HRC35 HRC

ASTM A453 Grade 660 Class A/B/C/D Heat Treatment Requirement

 

GradeClassSolution TreatmentHardening TreatmentGrade 660A1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air coolGrade 660B1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air coolGrade 660C1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and oil quench1425 +/- 25° F [775 +/- 14°C], hold 16 hr, air cool,

followed by 1200 +/- 25°F [650 +/- 14°C], air coolGrade 660D1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench

1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool, 

If required to achieve properties, second age: 

1200 +/- 25°F [650 +/- 14°C], air cool

 

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ASTM A453 GR. 660 Full Thread Stud

ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
  • ASTM A453 GR. 660  Full Thread Stud
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Approx. Price: Rs 2,000 / KgGet Latest Price
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Product Details:

Minimum Order Quantity100 Kg
MaterialInconel 286
Usage/ApplicationIndustrial
SizeM10-M100
Quantity Per Pack30
ColorBright
Fully ThreadedUNC
HardnessAs per class A B C D
FeaturesWith stress rupture test 100+ hrs guarantee
BrandRAJ
Pack TypeWooden
Country of OriginMade in India

ASTM A453 / A453M grade 660 class A B C D A286 bolting for High Temperature applications.

AANURAJ FASTENERS PVT LTD manufacturers, these grade 660 Bolts from 10 mm To 200 mm diameter and length upto 1200mm.
 
#A453 Grade 660 class A/B/C/C Studs & Bolts Chemical Composition Requirements
 
ELEMENT
Grade 660
%
Carbon
0.08 max
Manganese
2.00 max
Phosphorus, max
0.040 max
Sulfur, max
0.030 max
Silicon
1.00 max
Nickel
24.0-27.0
Chromium
13.5-16.0
Molybdenum
1.00-1.50
Titanium
1.9-2.35
Aluminum
0.35 max
Vanadium
0.10-0.50
Boron
0.001-0.010
 
#A453 Grade 660 Studs & Bolts Mechanical Properties Requirements
Size
Class
Tensile, Mpa
Yield, Mpa
Elong. %, min
RA %, min
Grade 660
A, B , & C
895 min
585 min
15
18
D
895 min
725 min
15
18
 
#A453 Grade 660 Studs & Bolts Heat Treatment Requirements
Grade
Class
Solutiona Treatment
Hardening Treatment
660
A
1650 +/- 25 °F [900 +/-14 °C], hold 2 h, min and liquid quench
1325 +/- 25 °F [720 +/- 14 °C] 16h, air cool
B
1800 +/- 25 °F [980 +/-14 °C], hold 1 h, min and liquid quench
1325 +/- 25 °F [720 +/- 14 °C] 16h, air cool
 
A453 Grade 660  Studs & Bolts Street Rupture Requirements
 
Grade
Class
Test Temperature
Stress, Min
Time to Rupture
Elongation
Deg F [ Deg C ]
Ksi
Mpa
Min, h*
Min %
660
A, B & C
1200 [650]
56
385
100
5

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Additional Information:

  • Item Code: STUD43
  • Delivery Time: 7 TO 30 DAYS
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Astm A453 Grade 660 Class A Heavy Hex Nuts 1.5/8"

Astm A453 Grade 660 Class A Heavy Hex Nuts 1.5/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.5/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.5/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.5/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.5/8
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1.5/8
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Approx. Price: Rs 1,360 / PieceGet Latest Price
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Product Details:

MaterialInconel
StandardASTM A 453 GRADE 660 CLASS A
DiameterHeavy Hex Nuts 1.5/8"
INCHES1.5/8" X 8 UN
Country of OriginMade in India

ASTM A453 Grade 660 Class A Heavy Hex Nuts are high-temperature, corrosion-resistant fasteners made from austenitic stainless steel.
They are ideal for bolting applications in pressure vessels, turbines, and high-temperature chemical equipment.
Chemical Composition includes high levels of Nickel (24–27%), Chromium (13–17%), and Molybdenum (1.5–1.9%) for superior oxidation resistance.
Mechanical Properties: Minimum tensile strength of 125 ksi (860 MPa), yield strength of 105 ksi (725 MPa), and excellent elongation and stress rupture values.
These nuts retain mechanical integrity up to 704°C (1300°F), ensuring long-term performance in demanding environments.
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Astm A453 Grade 660 Class A Heavy Hex Nuts 1"

Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 1
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Approx. Price: Rs 330 / PieceGet Latest Price
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Product Details:

Nominal Nut DiameterM25 (25 mm)
MaterialInconel
Material GradeASTM A 453 GRADE 660 CLASS A
Usage/ApplicationMARINE, OIL AND GAS
Quantity Per Pack48
Is It CustomisedCustomisation
Rust ResistantYes
Country of OriginMade in India

ASTM A453 Grade 660 Class A Heavy Hex Nuts are high-temperature, corrosion-resistant fasteners made from austenitic stainless steel.
They are ideal for bolting applications in pressure vessels, turbines, and high-temperature chemical equipment.
Chemical Composition includes high levels of Nickel (24–27%), Chromium (13–17%), and Molybdenum (1.5–1.9%) for superior oxidation resistance.
Mechanical Properties: Minimum tensile strength of 125 ksi (860 MPa), yield strength of 105 ksi (725 MPa), and excellent elongation and stress rupture values.
These nuts retain mechanical integrity up to 704°C (1300°F), ensuring long-term performance in demanding environments.
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Astm A453 Grade 660 Class A Heavy Hex Nuts 2"

Astm A453 Grade 660 Class A Heavy Hex Nuts 2
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2
  • Astm A453 Grade 660 Class A Heavy Hex Nuts 2
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Product Details:

Nominal Nut DiameterM48 (48 mm)
MaterialInconel
Material GradeASTM A 453 GRADE 660 CLASS A
Usage/ApplicationMARINE, OIL AND GAS
Is It CustomisedCustomisation
Rust ResistantYes
Country of OriginMade in India
MaterialsInconel 286

ASTM A453 Grade 660 Class A Heavy Hex Nuts are high-temperature, corrosion-resistant fasteners made from austenitic stainless steel.
They are ideal for bolting applications in pressure vessels, turbines, and high-temperature chemical equipment.
Chemical Composition includes high levels of Nickel (24–27%), Chromium (13–17%), and Molybdenum (1.5–1.9%) for superior oxidation resistance.
Mechanical Properties: Minimum tensile strength of 125 ksi (860 MPa), yield strength of 105 ksi (725 MPa), and excellent elongation and stress rupture values.
These nuts retain mechanical integrity up to 704°C (1300°F), ensuring long-term performance in demanding environments.
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ASTM A453 Gr.660 Heavy Hex Nut 1.3/4"

ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
  • ASTM A453 Gr.660 Heavy Hex Nut 1.3/4
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Approx. Price: Rs 2,000 / PieceGet Latest Price
Product Brochure

Product Details:

Minimum Order Quantity50 Piece
Nominal Nut Diameter70 mm
BrandAI
Size1/2" - 3.5" Unc
GradeASTM A453 GRADE 660 CLASS A B C D
TypeStuds & Heavy hex nuts
Rust ResistantYes
Surface FinishBuffed
Thread SizeUNC AND METRIC

ASTM A453 Grade 660 Nuts and Bolts – Chemical &

Mechanical Properties, Applications, and

Description

Product Description:

ASTM A453 Grade 660 nuts and bolts are high-temperature, high-strength fasteners manufactured

from austenitic stainless steel. Primarily used in pressure vessels, turbine engines, and heat

exchangers, these fasteners are designed for high stress and elevated temperature environments

up to 1000°F (538°C). They are categorized into four classes (A, B, C, and D) based on tensile

strength requirements after solution annealing and aging treatment.

Chemical Composition (%):

Element Content (%)

Chromium (Cr) 24.0 – 27.0

Nickel (Ni) 13.5 – 16.0

Molybdenum (Mo) 1.0 – 1.5

Titanium (Ti) 0.10 – 0.50

Carbon (C) £ 0.10

Manganese (Mn) £ 2.0

Silicon (Si) £ 1.0

Phosphorus (P) £ 0.04

Sulfur (S) £ 0.03

Iron (Fe) Balance

Mechanical Properties:

Class Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Hardness (HRB)

Class A 760 min 450 min 30 min £ 100

Class B 850 min 585 min 25 min £ 100

Class C 960 min 690 min 20 min £ 100

Class D 1040 min 830 min 15 min £ 100

Applications:

- Steam and Gas Turbines – Withstand extreme heat and pressure

- Nuclear Power Plants – Approved for high-radiation environments

- Heat Exchangers – Reliable in thermal cycles

- Aerospace Engines – High strength-to-weight ratio

- Petrochemical Refineries – Excellent oxidation resistance

- Pressure Vessels – Long-term mechanical reliability

- Flanges and Piping Assemblies – Stable at elevated temperatures

Focus Keywords:

ASTM A453 Grade 660 fasteners, Grade 660 stainless steel bolts, High temperature nuts and bolts,

A453 Class A B C D nuts, Turbine engine fasteners, High tensile bolts India, Heat resistant

fasteners

SEO Meta Description:

Buy ASTM A453 Grade 660 stainless steel nuts and bolts for high-temperature and high-stress

applications in turbines and reactors. Available in all classes A–D.

Hashtags:

#ASTMA453 #Grade660 #HighTempFasteners #StainlessSteelBolts #TurbineFasteners

#NuclearFasteners #HeatResistantBolts #EngineeringMaterials #IndustrialFasteners

#AerospaceBolts #AanurajFasteners #MadeInIndia

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Additional Information:

  • Item Code: ASTMA453
  • Production Capacity: EX-STOCK
  • Delivery Time: 7 TO 30 DAYS
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Tushar Desai (CEO)
Aanuraj Fasteners Private Limited
K.N.Dhumal Nagar, Gala No.G6a/10, S.No.46, Sagar Industrial Estate No11, Vasai East, Sagar, Industrial Estates, Vasai Virar
Vasai - 401208, Palghar, Maharashtra, India
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