A516 grade70 steel plate performance and quality evaluation mainly involves the following aspects, commonly used evaluation methods and standards are as follows:
1. Strength performance evaluation: including the yield strength, tensile strength, elongation and other indicators of A516 grade70 steel plate. These indicators are usually evaluated by tensile tests, impact tests and hardness tests. Relevant standards include ASTM A516/A516M, EN 10028-2, etc.
2. Uniformity assessment: The uniformity of the A516 grade70 steel plate is essential to ensure its performance and quality. Common evaluation methods include chemical composition analysis, metallographic structure analysis and ultrasonic detection of A516 grade70 steel plate.
3. Evaluation of corrosion resistance: The corrosion resistance of A516 grade70 steel plate under different environmental conditions needs to be evaluated. Common methods include corrosion test, salt spray test and electrochemical test. Relevant standards include ASTM G48, NACE TM0177, etc.
4. Welding performance evaluation: Evaluate the welding performance of A516 grade70 steel plate, including the strength, toughness and impact performance of welded joints. Common methods include welding test, fracture toughness test and impact test. Relevant standards include AWS D1.1, EN 1011, etc.
In the performance and quality evaluation, the appropriate evaluation methods and standards should be selected according to the specific application requirements, and the test and evaluation should be conducted in strict accordance with these standards. In addition, the relevant specifications and guidelines need to be followed to ensure the qualified use of the A516 grade70 steel plate.
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