Monday, July 30, 2012

[MW:14990] 4145H welding

Dear Experts,
                 Can you please share your experience with welding of 4145H.
The problem is as follows:
Base metal UTS = 157ksi
Client spec advises = PWHT @ 560°C

Now, the tensile achieved was only 110ksi
Bend test failed
Macro specimen shows high amount of martensite in the cap side.
CVN @ room temperature = 40Joules

regards,
Harish.

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