Sunday, November 13, 2016

[MW:25672] preheat

ASME SECTION IX, QW 406-Preheat

QW 406.1, Preheat temp should not decrease more than 100*F(55*C) and QW 406.3, Inter pass temp should not increase more than 100*F ( 55*C). What is the logic to choose temp limit 100*F( 55*) and consequences if exceed this limitations

THANKS & BEST REGARDS,
KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349

--
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.
To post to this group, send email to materials-welding@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAJzm4eO1gvy1nOczn_%2BajNXT%2Bd%2BOhTEyJ6fZPAbxkw8eVwkyfQ%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.

No comments:

Re: [MW:35354] Cast-iron welding

1. Preheat joint area(other area, cover with mineral wool). 2. ENiCi or ENiFe-CI. 3. stringer bead. 4. peening is to be done on weldmetal im...