Re: [MW:10321] Wedling of 42CRMOS4 with ST52-3

Hi,

 

42CrMOS4-  What is the heat treatment condition Normalised or Quenched and Tempered.

 

Stregth will not be criteria for  welding of these materials.  You can use E 7018 or E 8018 electode.  You have to preheat of 200 C and post heat of 300 C for 30 min  to avoid hydrogen induced cracking.

 

If you donot want preheat and post heat, you can use E 309L or E 309L MO-16.

 

Regards

 

N.V . PRASAD

On Sun, Mar 13, 2011 at 10:56 AM, hany alfy <hanyon_alfy@yahoo.com> wrote:

Dear Experts,

 

Can you please advice which electorde we can use for Wedling of 42CRMOS4 with ST52-3

 

I attached here MTC for  42CRMOS4 for more information

 

Also if there is any pre-heat or PWHT had to be applied

 

Regards,

H.A

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