Welding Procedures for Welding HY80 Steel

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Authors
  1. Nicholson, C.J.
  2. Malik, L.
  3. Begg, D.
  4. Matthews, J.R.
  5. Roy, V.
  6. Dickout, S.J.
Corporate Authors
Fleet Technology Ltd, Kanata ONT (CAN);Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
In light of the acquisition of the Upholder class submarines by the Canadian Navy, some benchmark procedures have been developed for welding HY80 steel. These procedures for welding in the vertical up position comprised one for the shielded metal arc welding process, and two for semi-automatic processes (GMAW with TIME shielding gas and MCAW with argon 2% oxygen as the shielding gas). The filler metals employed were matching in strength. State of the art, Lincoln Powerwave 450 welding machine was used for all the welds. The main considerations in finalizing the welding procedures were to minimize the heat input and interpass grinding but without incidence of lack of fusion type of flaws. The weld metal notch toughness for the three welds is reported.
Keywords
Submarines (Upholder)
Report Number
DREA-SR-1999-162-PAP-6 — CONTAINED IN CA000150
Date of publication
01 Oct 1999
Number of Pages
17
DSTKIM No
CA000156
CANDIS No
511880
Format(s):
Hardcopy;Document Image stored on Optical Disk

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