Re: [MW:21724] Bend test was broken on A312 TP 321

Dear Sergio 

PWHT must be carryout (spec. requirement). also pipe heat to 900oC and holding 8 h and rapid cooling . 

Vào 07:12:24 UTC+7 Thứ tư, ngày 27 tháng tám năm 2014, Sergio Antonio Muñoz Pinzón đã viết:

Maybe you don't need to do the normalizing, try to test your procedure in as welded condition, it's possible that some sigma phase is being formed in your PWHT. You must control the ferrite number in the weld as low as possible without hot cracking. If you still consider doing the heating up 900oC, try a rapid cooling instead.

Sergio Muñoz
http://weld-ing.blogspot.com
http://pe.linkedin.com/pub/sergio-antonio-mu%C3%B1oz-pinz%C3%B3n/54/a33/69

--
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.