Flux-cored welding wire with a low nitrogen content

Details Flux-cored welding wire with a low nitrogen content Flux-cored welding wire with a low nitrogen content

1998-06-05

2000-09-26

Ryan, Patrick

Electric heating

Metal heating

Weld rod composition

219137WM, 21914522, 148 22, 148 23, 148 24, B23K 3500

Patent

active

061245690

ABSTRACT:
A flux-cored wire for welding shielded by a flow of gas, in particular of the rutile or slag-free type, composed of an outer metal sheath and a central core comprising filling elements, and an MAG gas-shielded welding process using such a flux-cored wire for producing a welded joint on a steel construction, such as an offshore platform or a storage tank. The welded joint obtained has improved impact strength and improved toughness, and contains less than 65 ppm nitrogen, from 300 ppm to 0.12% carbon, from 0.01% to 0.6% silicon, from 0.9% to 1.9% manganese, from 20 ppm to 0.08% titanium, from 1 ppm to 80 ppm boron, from 5 ppm to 150 ppm aluminum, from 10 ppm to 0.02% niobium and from 10 ppm to 0.02% vanadium.

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