Specimen for low temperature crack (y-groove) test of steel welding part

摘要

The present invention is designed to simplify and simplify the test by modifying the shape of the specimen in the low temperature crack test (y-groove type), which is one of the weldability test methods, and to improve the test accuracy. Type) Test specimens, which are provided with grooves for maintaining the set intervals on the test welds of one test piece so as to secure the root spacing of the test welds of the test pieces facing to both sides. The high precision experimental value was obtained by preventing the various types of interference derived from the hassle and the heat of welding caused by setting the root spacing of both specimens.