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A453 Gr.660 Class B Stud Bolt
QS Fastener: A453 Gr.660 Class B Stud Bolt
Name: A453 Gr.660 Class B Stud Bolt
Material: A453 Gr.660 Class B
Usage: For Furnace Flange Connection
Hardness: 24-37 HRC
Standard: ANSI B18.31.2
Size: 7/8 Inch
Length: 120mm
Delivery Condition: With Solution Treatment and Hardening Treatment
Material: A453 Gr.660 Class B
Usage: For Furnace Flange Connection
Hardness: 24-37 HRC
Standard: ANSI B18.31.2
Size: 7/8 Inch
Length: 120mm
Delivery Condition: With Solution Treatment and Hardening Treatment
Quantity
A453 Gr.660 Class B Stud Bolt is a high-performance stud manufactured from A453 Gr.660 Class B material, offering exceptional high-temperature resistance and creep resistance. The product complies with the ANSI B18.31.2 standard, with a hardness range of 24-37 HRC. It undergoes solution treatment and hardening treatment to ensure outstanding strength and stability even in high-temperature environments. With a size of 7/8 inches and a length of 120mm, it is suitable for high-temperature equipment connection needs in industries such as oil refining, chemicals, and power generation.
To ensure the quality of our A453 Gr.660 Class B Stud Bolt production, we impose strict requirements on the toughness and strength of raw materials. Every batch of materials undergoes impact testing.
Impact Testing of A453 Gr.660 Class B Stud Bolt Material: Charpy Impact Test with a Standard Value of ≥ 35 J (at -40°C).
Impact testing is an important method for evaluating the toughness and strength of A453 Gr.660 Class B Stud Bolt material under rapid impact loading. The Charpy impact test is one of the most common impact testing methods. Below is a detailed explanation of the Charpy impact test, including the testing instruments and procedures.
Impact testing is an important method for evaluating the toughness and strength of A453 Gr.660 Class B Stud Bolt material under rapid impact loading. The Charpy impact test is one of the most common impact testing methods. Below is a detailed explanation of the Charpy impact test, including the testing instruments and procedures.
Charpy Impact Test
Testing Principle: The Charpy impact test measures a material's resistance to impact by applying a rapid impact load to a standardized specimen under specific conditions (e.g., low temperature, room temperature, or high temperature). The specimen is fixed at one end and struck at the other end by a freely falling pendulum hammer. The specimen fractures upon impact, and the kinetic energy of the hammer is converted into energy absorbed by the specimen. The goal of the test is to measure the energy absorbed by the A453 Gr.660 Class B Stud Bolt material sample at the point of fracture.
Testing Principle: The Charpy impact test measures a material's resistance to impact by applying a rapid impact load to a standardized specimen under specific conditions (e.g., low temperature, room temperature, or high temperature). The specimen is fixed at one end and struck at the other end by a freely falling pendulum hammer. The specimen fractures upon impact, and the kinetic energy of the hammer is converted into energy absorbed by the specimen. The goal of the test is to measure the energy absorbed by the A453 Gr.660 Class B Stud Bolt material sample at the point of fracture.
Instruments Used
Charpy Impact Tester: The main equipment consists of the following components:
Impact Hammer: A weighted object, typically several kilograms, designed to fall freely and deliver the impact according to testing standards.
Charpy Impact Tester: The main equipment consists of the following components:
Impact Hammer: A weighted object, typically several kilograms, designed to fall freely and deliver the impact according to testing standards.
Specimen Holder: Used to secure the specimen, ensuring stability during the test.
Pendulum Arm: Supports and releases the impact hammer, usually set at a specific angle to facilitate the release of impact energy.
Energy Measurement Device: Measures the height of the hammer after impact to determine the energy absorbed by the specimen, reflecting the specimen's toughness.
Testing Steps
1. Specimen Preparation: Prepare the A453 Gr.660 Class B Stud Bolt material specimen according to standard dimensions, typically 10 mm × 10 mm × 55 mm, with a V-notch or U-notch.
1. Specimen Preparation: Prepare the A453 Gr.660 Class B Stud Bolt material specimen according to standard dimensions, typically 10 mm × 10 mm × 55 mm, with a V-notch or U-notch.
2. Temperature Control: If the standard requires testing at low temperatures (e.g., -40°C), place the specimen in a low-temperature environment in advance to ensure it reaches the testing temperature.
3. Specimen Installation: Secure the specimen in the holder of the Charpy impact tester, ensuring it is stable and the notch is aligned with the direction of the hammer's impact.
4. Release the Impact Hammer: During the test, release the impact hammer to allow it to fall freely and strike the specimen.
5. Energy Calculation: After impact, observe the hammer's drop height and use the energy measurement device to record the value. Calculate the energy absorbed by the specimen using the formula (difference between the hammer's initial height and post-impact height).
6. Result Recording: Based on the results, evaluate the impact resistance of the A453 Gr.660 Class B Stud Bolt specimen at the specified temperature and compare it with the standard value (standard value ≥ 35 J at -40°C) to determine compliance.
The Charpy impact test is a widely used method in materials science and engineering, providing a relatively accurate reflection of the strength and toughness of A453 Gr.660 Class B Stud Bolt material. This testing method is not only used for metal material analysis but also applied in fields such as plastics and composites. Ensuring proper specimen preparation, testing environment, and instrument accuracy will significantly impact the test results.
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