I'm looking to weld build up (add about 0.5mm) to a spacer key made of 10705BU-ST material (AISI 422 or ASTM A565 Grade 616). Can anyone provide guidance? the application is LP steam turbine and the key face is about 4.5" x 2" in size. I plan on just having two strips welded on to the face to bring the key into spec, not weld the entire face.
Please advise, urgent
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