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A programme of study aimed at deriving data on the avoidance of weld metal hydrogen-induced cracking was carried out. The intention was to allow full exploitation of the improved weldability, i.e. reduced risk of HAZ hydrogen-induced cracking of some of the newer, low carbon equivalent steels. Two steel types, E355 and E500, with yield strengths of -390 and -570 MPa respectively were employed. These steels are reputed to have a low risk of HAZ hydrogen-induced cracking. Single weld beads were investigated by means of the Tekken and LBTRC tests, and multiple-pass welds were employed to study the risk of transverse weld metal hydrogen-induced cracking. Pertinent data were derived for the welding consumables studied. The results confirm the importance of low weld hydrogen levels in maintaining a low risk of weld metal hydrogen-induced cracking.

Additional information

Authors: ABSON D J, The Welding Institute, Abington (GB)
Bibliographic Reference: EUR 12638 EN (1990) 77 pp., FS, ECU 8.75
Availability: (2)
ISBN: ISBN 92-826-1267-8
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