Dear Sir,
Some years ago we built a dss chemical tanker, and at that time we tested flamestraightening of flat panels by spot heating ( by hand) and watercooling down, directly after upheating until the steel is cherry red. Although it is normally not acceptable because of fear of structure modification and posible carbonizing of the dss, it showed in the laboratory test that the grain size and the structure had not changed.
It is not to be expected that either corrosion resistance as well as impact value is changed due to the straightrening.
If straightness is an issue, you may try to perform a flame straightening procedure, with additional testing in cooperation with yor client.
2011/7/12 박종민(PARK, JONG MIN) <carpediem@dsme.co.kr>
--Dear Experts
We will make structural tanks with duplex and super duplex stainless steel.
As I know line heating on duplex steel is forbidden.
Is there any other method to straighten the deformed duplex stainless plate?
Best regards,
JM
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
--
To post to this group, send email to materials-welding@googlegroups.com
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For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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