Problems with tensile specimens and impact test blocks?
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1. What does 6mm in the tensile specimen diagram refer to? 2. There are two types of test blocks in the impact test block diagram. One type of test block is in the center and is symmetrical on both sides. ； The other way is to add 5 mm to the weld fusion line at one end. Where is such a rule?
1. Whether it is NB/T47014 or 47016, the tensile specimen is marked 6 mm like this, according to the standard. 2. The impact sample has a group of weld centers and a group of weld heat-affected zones (the heat-affected zone is the range 1-5 mm from the fusion line)
Does 6mm refer to the width of the fusion line?