By how much is the low-temperature impact energy value higher for shell steel plates and joints with a thickness greater than 100 mm?
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1. According to GB150.2.4.1.11, the temperature for impact testing is set at the lowest design temperature; however, the impact energy requirement is higher than that specified in Table 1 (P46). What is the value of this higher requirement? Are there specific figures showing the increase?
What does it mean? Does that mean that usually this one isn’t executed, and instead the one below is executed?
The impact energy value must be higher than the standard requirement in order to ensure that the impact test of the welded joint meets the specified standards. Currently, the impact energy values of steel plates in large manufacturers are well above the standard values.
There is only a lower limit; no upper limit is specified. In reality, it’s no more than 3 times.