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Information × Registration Number 0301U002207, 0199U001173 , R & D reports Title The evaluation of welded joint impact strength of 1020 mm OD oil and gas tubes grom the point of new metrohods and customer"s standards popup.stage_title Оцінка в"язкості зварних з"єднань газонафтопровідних труб діаметром 1020 мм з позицій нових рівнів замовників Head Mychko B.P., Registration Date 11-03-2001 Organization State Scientific Research Tube Institute popup.description2 The impact strength of KCU and KCV londgitudinally welded jonts of 17ГІС-У and 13ГІС-У steel tube specimens with different notch orientations and locations on the welded seam width at different temperatures was investigated in home practice for the first time. It was shows that impact strength tube weldedjoints of current production met the new customer"s requirements after calibration. The minimal impact strength values were observed in the centre of the seam, the maximal values -along the lime of fusion of outside seam with basic metal. The impact stength of specimens with notches at the point of fusion line intersection and at the 2 mm distance to the basic metal had intermediste values. It was found that the minimal values of KCV welded joints of 13ГІС -У steel tubes with all tested notch locations and orientations notch locations and origentations remain quite high (34...37 J/sm2) to the temperature -15 C Product Description popup.authors popup.nrat_date 2020-04-02 Close