Requirements for impact testing of sheets of a certain thickness

Thread Content

This post was last edited by 511948814 on 2023-7-12 at 12:42. According to the requirements of the design documents, for steel plates in the quenched and tempered condition with a thickness greater than ( ), and for steel plates in the normalized or normalized plus tempered condition with a thickness greater than ( ), an additional impact test sample taken at 1/2 of the plate’s thickness can be taken; the impact energy value for this test is specified in the design documents. A. 36mm B. 40mm C. 50mm D. 80mm Reference answers: A, D (GB/T 150.2-2011); A, C (GB/T 12337-2014). Explanation: No specific standard is specified in this question, and different options may apply depending on the standard used. GB/T 150.2-2011 4.1.6 According to the requirements of the design documents, for steel plates used in the quenched and tempered condition with a thickness greater than 36 mm, and for steel plates used in the normalized or normalized and tempered condition with a thickness greater than 80 mm, an additional set of impact tests taking samples at 1/2 of the plate thickness may be conducted; the impact energy value for these tests is specified in the design documents. GB/T 12337-2014 4.2.5 According to the design requirements, for steel plates used in the quenched and tempered condition with a thickness greater than 36 mm, and for steel plates used in the normalized or normalized and tempered condition with a thickness greater than 50 mm, an additional set of impact tests taking samples at 1/2 of the plate thickness may be carried out; the impact energy value for these tests is specified in the design documents. If the standard is still not specified for the entity in the pressure vessel examination. It is recommended to choose answers A and D in accordance with GB/T 150.2-2011.