Unnotched impact test piece 无缺口冲击试样
This test piece shall be welded using the identical welding parameters as the original test and only weld metal impact test specimens shall be tested.
此试件应使用与原始试验相同的焊接参数进行焊接，并且仅对焊接金属冲击试样进行试验。
When impact requirements apply, the upper limit of heat input qualified is 25 % greater than that used in welding the test piece.
当采用冲击要求时，适合的热输入的上限比试件焊接时使用的热输入大25%。
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