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.
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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
Product Details:
| Minimum Order Quantity | 80 Piece |
| Diameter | 40 mm |
| Shape | Hexagonal |
| Standard | ASTM A 453 GRADE 660 |
| Thickness | CUSTOMER SPECIFICATION |
| Size | M10-M100,3/8"- 4" |
| Material Grade | ASTM A453 GRADE 660 CLASS A B C D |
| Material | ASTM A453 GRADE 660 CLASS A B C D |
| Grade | ASTM A453 GRADE 660 CLASS A B C D |
| Finishing Type | BRIGHT |
| Color | BRIGHT |
| Quantity Per Pack | CUSTOMER SPEC |
| Usage/Application | OIL AND GAS INDUSTRIES |
| Bolt Type | HEX |
| Brand | RAJ |
| Country of Origin | Made 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| 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 |
| Grade | Class | Solution Treatment | Hardening Treatment |
|---|---|---|---|
| Grade 660 | A | 1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench | 1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool |
| Grade 660 | B | 1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench | 1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool |
| Grade 660 | C | 1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and oil quench | 1425 +/- 25° F [775 +/- 14°C], hold 16 hr, air cool, followed by 1200 +/- 25°F [650 +/- 14°C], air cool |
| Grade 660 | D | 1650 +/- 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 |
Additional Information:
Product Details:
| Minimum Order Quantity | 50 Piece |
| Diameter | 40 mm |
| Thickness | CUSTOMER SPECIFICATION |
| Material Grade | ASTM A453 GRADE 660 CLASS A B C D |
| Type | Heavy Hex Nuts |
| Shape | Hexagonal |
| Size | 1.3/8" X 8UNC |
| Grade | ASTM A453 GRADE 660 CLASS A B C D |
| Material | ASTM A453 GRADE 660 CLASS A B C D |
| Packaging Type | CUSTOMER SPECIFICATION |
| Finishing Type | BRIGHT |
| Color | BRIGHT |
| Quantity Per Pack | 10 |
| Features | BRIGHT |
| Usage/Application | OIL AND GAS INDUSTRIES .VALVES |
| Bolt Type | HEX |
| Brand | RAJ |
| Country of Origin | Made in India |
Specifications:
| 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 |
| Grade | Class | Solution Treatment | Hardening Treatment |
|---|---|---|---|
| Grade 660 | A | 1650 +/- 25° F [900 +/- 14°C], hold 2 hr, min and liquid quench | 1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool |
| Grade 660 | B | 1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and liquid quench | 1325 +/- 25° F [720 +/- 14°C], hold 16 hr, air cool |
| Grade 660 | C | 1800 +/- 25° F [980 +/- 14°C], hold 1 hr, min and oil quench | 1425 +/- 25° F [775 +/- 14°C], hold 16 hr, air cool, followed by 1200 +/- 25°F [650 +/- 14°C], air cool |
| Grade 660 | D | 1650 +/- 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 |
Additional Information:
Product Details:
| Minimum Order Quantity | 25 Piece |
| Nut Type | Drilling |
| Size | 1.7/8" |
| Shape | Hexagonal |
| Material | ASTM A453 GRADE 660 CLASS A B C D |
| Brand | RAJ |
| Country of Origin | Made in India |
Additional Information:
Product Details:
| Size | Heavy Hex Nuts 2" |
| Grade | ASTM A 453 GRADE 660 CLASS A |
| Head Type | HEX |
| Country of Origin | Made in India |
| Materials | Inconel 286 |
Product Details:
| Standard | ASTM A 453 GRADE 660 CLASS A |
| Diameter | 1.1/8" X 8UNC |
| INCHES | 1.1/8" |
| Material | Inconel |
| Country of Origin | Made in India |
Product Details:
| Minimum Order Quantity | 50 Piece |
| Size | Heavy Hex Nut 1.3/8" |
| Quantity Per Pack | 48 nos |
| Grade | ASTM A 453 GRADE 660 CLASS A |
| Head Type | HEX |
| Country of Origin | Made in India |
Product Details:
| Minimum Order Quantity | 50 Kg |
| Grade | ASTM A453 GRADE 660 CLASS A B C D |
| Type | Full Thread Studs |
| Material Grade | ASTM A453 GRADE 660 CLASS A B C D |
| Size | Matric and Inches,M10-M100 |
| Material | ASTM A450 GR. 660 |
| Usage/Application | Oil And Gas Production industries,Offshore Industries |
| Color | Silver Grey |
| Brand | Raj |
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)
Additional Information:
Product Details:
| Minimum Order Quantity | 50 Piece |
| Shape | Heavy Hex Nuts |
| Packaging Type | Wooden |
| Finishing Type | Buffing |
| Quantity Per Pack | 10 |
| Features | ASTM A453 GR. 660 GRADE A B C D |
| Product Type | Hex Nuts |
| Diameter (mm) | 1.1/8" |
| Range | 1/2" - 3.5" UNC |
| Standard | Astm |
| Coating | Bright Buffed |
| Number Of Pieces | 2600 |
| Condition | New |
| Brand | RAJ |
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
Product Details:
| Minimum Order Quantity | 100 Kg |
| Material | Inconel 286 |
| Usage/Application | Industrial |
| Size | M10-M100 |
| Quantity Per Pack | 30 |
| Color | Bright |
| Fully Threaded | UNC |
| Hardness | As per class A B C D |
| Features | With stress rupture test 100+ hrs guarantee |
| Brand | RAJ |
| Pack Type | Wooden |
| Country of Origin | Made 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
Additional Information:
Product Details:
| Material | Inconel |
| Standard | ASTM A 453 GRADE 660 CLASS A |
| Diameter | Heavy Hex Nuts 1.5/8" |
| INCHES | 1.5/8" X 8 UN |
| Country of Origin | Made in India |
Product Details:
| Nominal Nut Diameter | M25 (25 mm) |
| Material | Inconel |
| Material Grade | ASTM A 453 GRADE 660 CLASS A |
| Usage/Application | MARINE, OIL AND GAS |
| Quantity Per Pack | 48 |
| Is It Customised | Customisation |
| Rust Resistant | Yes |
| Country of Origin | Made in India |
Product Details:
| Nominal Nut Diameter | M48 (48 mm) |
| Material | Inconel |
| Material Grade | ASTM A 453 GRADE 660 CLASS A |
| Usage/Application | MARINE, OIL AND GAS |
| Is It Customised | Customisation |
| Rust Resistant | Yes |
| Country of Origin | Made in India |
| Materials | Inconel 286 |
Product Details:
| Minimum Order Quantity | 50 Piece |
| Nominal Nut Diameter | 70 mm |
| Brand | AI |
| Size | 1/2" - 3.5" Unc |
| Grade | ASTM A453 GRADE 660 CLASS A B C D |
| Type | Studs & Heavy hex nuts |
| Rust Resistant | Yes |
| Surface Finish | Buffed |
| Thread Size | UNC 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:
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Hashtags:
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Additional Information: