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  • Users: JB2001
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  1. JB2001

    Weldin and corrosion of AW7003

    Hi! I have heard that welding of the aluminium alloy AW7003 could give corrosion problems. The person that stated this could not however specify which type of corrosion problem welding could lead to. Does anyone know? I know that the 7xxx generally is said to be prone to stress corrosion...
  2. JB2001

    Scaling temperature for 13%Cr 2.5%Ni 1.5% Mo steel

    Hi! Do anyone of you got an idea on the scaling temperature of a steel containing 0.2%C, 13%Cr, 2.5%Ni, 1.5%Ni, 0.25%V, 0.25%Nb? My guess is 600-700 degree C, but I have not found any written data.
  3. JB2001

    Holding time normalising of P/T 22 after welding

    We have been asked to perform mechanical tests of welded joints in P/T22 (2.25Cr 1Mo) which shall be normalised and tempered after welding. The normalising treatment shall be done at 920-940 degree Centigrade according to requirement from our client, but how long holding time shall I choose for...

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