The detection methods of LR AH36 steel plate usually include the following:
1. Chemical composition analysis: Determine the content of each element in the steel plate through chemical composition analysis to ensure compliance with specified standards and requirements.
2. Mechanical performance testing: including tensile test, impact test, hardness test, etc., to evaluate the mechanical properties such as strength, toughness and hardness of LR AH36 steel plate.
3. Metallographic structure analysis: Observe and analyze the metallographic structure of LR AH36 steel plate, understand the grain size, phase transformation and other information, and judge the quality and performance of the steel plate.
4. Ultrasonic testing: Use ultrasonic technology to conduct non-destructive testing of steel plates to detect surface and internal defects such as defects, inclusions or cracks.
5. Magnetic particle inspection: By applying a magnetic field and magnetic particle inspection method, defects such as cracks and fatigue damage on the surface and near surface of the LR AH36 steel plate are detected.
6. Hardness test: The hardness index of LR AH36 steel plate is evaluated by conducting indentation or press-in test under specific conditions.
7. Dehydrogenation test: For high-strength LR AH36 steel plates, a dehydrogenation test is conducted to detect whether there is a brittle fracture problem.
8. Welding performance test: For LR AH36 steel plate that need to be welded, conduct corresponding welding performance tests to ensure the quality and reliability of the welded joints.
The comprehensive application of these testing methods can comprehensively evaluate the quality, performance and applicability of LR AH36 steel plate to ensure that they meet the requirements of classification societies and related standards.
