AUSTENITIC STAINLESS STEEL WELDING METAL－ 196℃ CRYOGENIC IMPACT TOUGHNESS TECHNOLOGICAL TEST

For improving the impact toughness of austenitic stainless steel welding metal in the cryogenic condition,according to the tests of some welding technologies,the effect of carbon, hydrogen and ferrite on austenitic stainless steel impact toughness at 196℃ cryogenic was disuassed and several suggestions for choosing welding metals and technologies were presented.