Keyword: «welding thermal cycle»

The article presents the results of a study on multi-pass welded joints made at subzero and ambient air temperatures. Experimental multi-pass welding of low-alloy bridge steel 10HSND (Grade 3) was performed using WN 62U electrodes with registration of the welding thermal cycles. The research results confirm the possibility of producing high-quality welded joints in 10HSND steel under subzero temperature conditions without significant degradation of its performance characteristics.