B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 9/16 (2006.01) B23K 9/23 (2006.01) B23K 35/30 (2006.01)
Patent
CA 2076435
ABSTRACT Disclosed is a gas-shield arc welding method in which chemi- cal components of base material and weld material (gas-shield arc welding wire), chemical component ranges of weld metal based on the base material and the weld material, especially, difference (.DELTA.(Cu+Ni), .DELTA.Mo) of Cu, Ni and Mo between the weld metal and the base material, and welding conditions are limited for the purpose of improvement selective corrosion resistance, toughness and crack resistance of the weld metal in circumferential welding of a pipe exposed into a corrosion environment including CO2.
Endo Shigeru
Itoh Motokiyo
Konishi Masato
Nagae Moriyasu
Nakano Toshihiko
Kobe Steel Ltd.
Macrae & Co.
Nkk Corporation
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