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Thanks for the suggestion, but I have been to Alcotecs site and I can not find the page you are referring to. Can you please guide me more precisely how to reach the page? The only information I find at Alcotec's site about the 7000 series is the same as also is stated at Lincolns site, which is...

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...

Swall! I have to comment... With a poorly designed joint and a poorly trained welded, ANY welding process might give LOF or a range of other defects!

Thank you metengr and Edstainless for your answers. They were both helpful to me!

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.

Thanks everyone for your answers!

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...