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A453 Gr 660 Stud Bolt
QS Fastener: A453 Gr 660 Stud Bolt
Name: A453 Gr 660 Stud Bolt
Thread: Fully Thread Stud Bolt
Standard: ISO 261
Test: Impact Test at -196℃
Material Grade: ASTM Class A
Size: M80
Length: 1000mm
Thread Class: 6G
Thread: Fully Thread Stud Bolt
Standard: ISO 261
Test: Impact Test at -196℃
Material Grade: ASTM Class A
Size: M80
Length: 1000mm
Thread Class: 6G
Quantity
A453 Gr 660 Stud Bolt is a high-strength fully threaded stud that complies with the ISO 261 standard, with a material grade of ASTM Class A, demonstrating exceptional mechanical properties and low-temperature resistance. The product undergoes rigorous impact testing at -196°C, ensuring excellent toughness and stability even in ultra-low-temperature conditions. With a size of M80, a length of 1000mm, and a thread grade of 6G, it is suitable for critical connection requirements in liquefied natural gas (LNG), cryogenic equipment, and the chemical industry. A453 Gr 660 Stud Bolt provides reliable performance and precise manufacturing, offering robust protection for your low-temperature equipment, making it the fastener of choice for low-temperature applications.
Heat treatment is a critical step in the production of A453 Gr 660 Stud Bolt, improving its mechanical properties and enhancing product quality.
Heat Treatment
1. Heat Treatment Process
The heat treatment process significantly impacts the mechanical properties of A453 Gr 660 Stud Bolt material, primarily including solution treatment and aging treatment. Solution treatment is performed at 1050°C to 1100°C, followed by rapid cooling after a certain holding time. Aging treatment is conducted at 700°C to 800°C. Below is a detailed explanation of these two methods, along with specific data and research results.
1. Heat Treatment Process
The heat treatment process significantly impacts the mechanical properties of A453 Gr 660 Stud Bolt material, primarily including solution treatment and aging treatment. Solution treatment is performed at 1050°C to 1100°C, followed by rapid cooling after a certain holding time. Aging treatment is conducted at 700°C to 800°C. Below is a detailed explanation of these two methods, along with specific data and research results.
2. Heat Treatment Process
1) Solution Treatment
Temperature Range: The typical temperature for solution treatment is 1050°C to 1100°C. This temperature range effectively dissolves strengthening phases (such as the γ' phase) into the matrix of A453 Gr 660 Stud Bolt alloy.
1) Solution Treatment
Temperature Range: The typical temperature for solution treatment is 1050°C to 1100°C. This temperature range effectively dissolves strengthening phases (such as the γ' phase) into the matrix of A453 Gr 660 Stud Bolt alloy.
Holding Time: The holding time for solution treatment is usually 1 to 4 hours, depending on the thickness of the ingot and alloy composition. For example, thicker ingots require longer holding times.
Cooling Method: Rapid cooling after solution treatment can be achieved through water quenching or oil quenching, with the cooling time ideally completed within 30 seconds to maintain high strength and plasticity of the casting.
2) Aging Treatment
Temperature Range: Aging treatment is typically performed at 700°C to 800°C. Research shows that the optimal aging temperature is usually 750°C.
Temperature Range: Aging treatment is typically performed at 700°C to 800°C. Research shows that the optimal aging temperature is usually 750°C.
Holding Time: The holding time for aging treatment is usually set between 8 and 24 hours to promote further phase precipitation in A453 Gr 660 Stud Bolt alloy, thereby enhancing strength.
Cooling Method: After aging treatment, cooling is typically done in air.
Cooling Method: After aging treatment, cooling is typically done in air.
Impact of Heat Treatment on Mechanical Properties
1) Tensile Strength
Data shows that after solution treatment, the tensile strength of A453 Gr 660 Stud Bolt can increase to over 900 MPa, compared to approximately 600 MPa for untreated ingots.
1) Tensile Strength
Data shows that after solution treatment, the tensile strength of A453 Gr 660 Stud Bolt can increase to over 900 MPa, compared to approximately 600 MPa for untreated ingots.
Aging treatment further increases tensile strength, often exceeding 1000 MPa, depending on the aging temperature and time.
2) Yield Strength
After solution treatment, the yield strength of A453 Gr 660 Stud Bolt generally improves to 700 MPa, and after aging treatment, it can exceed 800 MPa.
After solution treatment, the yield strength of A453 Gr 660 Stud Bolt generally improves to 700 MPa, and after aging treatment, it can exceed 800 MPa.
3) Ductility
Both solution treatment and aging treatment enhance the ductility of A453 Gr 660 Stud Bolt, reducing defects during forming processes. Some studies show that after optimized heat treatment, ductility can increase to over 30% (relative to severe deformation capability).
Both solution treatment and aging treatment enhance the ductility of A453 Gr 660 Stud Bolt, reducing defects during forming processes. Some studies show that after optimized heat treatment, ductility can increase to over 30% (relative to severe deformation capability).
4) Hardness
The hardness of A453 Gr 660 Stud Bolt after heat treatment generally increases by 30%-50%. For example, after solution and aging treatment, hardness can reach 250-350 HRB. This is crucial for preventing wear and extending service life.
The hardness of A453 Gr 660 Stud Bolt after heat treatment generally increases by 30%-50%. For example, after solution and aging treatment, hardness can reach 250-350 HRB. This is crucial for preventing wear and extending service life.
Through the above heat treatment processes and their impact on mechanical properties, the performance of nickel-based alloy materials can be significantly improved. In practical applications, these parameters can be adjusted based on specific requirements.
Cooling and Inspection
After heat treatment, the material is cooled in a controlled environment and subjected to hardness and tensile tests to ensure its mechanical properties meet the requirements of ASTM A453 Gr.660. The exceptional performance of A453 Gr 660 Stud Bolt makes it the ideal choice for low-temperature applications.
After heat treatment, the material is cooled in a controlled environment and subjected to hardness and tensile tests to ensure its mechanical properties meet the requirements of ASTM A453 Gr.660. The exceptional performance of A453 Gr 660 Stud Bolt makes it the ideal choice for low-temperature applications.
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