Steam turbine having applied novel erosion resistant...

Details Steam turbine having applied novel erosion resistant... Steam turbine having applied novel erosion resistant...

B - Operations, Transporting

23

K

26/150, 327/71

B23K 9/23 (2006.01) B23K 9/04 (2006.01)

Patent

CA 2022649

Methods for providing erosian resistant surfaces to carbon steel turbine components are provided by this invention. The methods include welding a steel weldment comprising at least 12 wt.% Cr. on to a carbon steel steam turbine component at a welding speed of about 24 -52 inches, 61-132 cm, per minute in a nominal first pass thickness of less than about .1 inches, .25 cm. Preferred flux-cord-arc welding (FCAW) techniques are disclosed for vertical down, overhead, horizontal and flat surfacing positions.

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