Please check for the Delta Ferrite percentage. It should be in the range of 5-10%. Do a magnetic check. Also try to calculate the percent ferrite from the WRC diagram based on chemical compaosition. If there is a mismatch occured due to welding conditions then do a solution annealing heattreatment.
Thanks & Regards
J.Gerald Jayakumar
0091-9344954677
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/groups/opt_out.
0091-9344954677
From: NAJM UL ISLAM <najmislam246@gmail.com>
To: materials-welding@googlegroups.com; Najm Ul Islam All <najmislam246@hotmail.com>
Sent: Monday, February 11, 2013 4:46 PM
Subject: [MW:16742] Highest hardness acceptable limit for ss 347 H in as welded condition
To: materials-welding@googlegroups.com; Najm Ul Islam All <najmislam246@hotmail.com>
Sent: Monday, February 11, 2013 4:46 PM
Subject: [MW:16742] Highest hardness acceptable limit for ss 347 H in as welded condition
Dear Experts,
Someone else can tell me that what is the high hardness acceptable value for the ss 347 H in as welded condition. Actually we did one pqr with this material using ER 16.8.2/E 16.8.2 metrode welding consumable , pipe dia is 20"X 23.8mm in 6G position. All tests are pass like impact, bend, tensile, macro , micro structure. Max. Hardness Is 320 Hv10.
Can anyone can define the max value. Service is not sour.however operating temp is high from 500 to 700 deg celcius.
Someone else can tell me that what is the high hardness acceptable value for the ss 347 H in as welded condition. Actually we did one pqr with this material using ER 16.8.2/E 16.8.2 metrode welding consumable , pipe dia is 20"X 23.8mm in 6G position. All tests are pass like impact, bend, tensile, macro , micro structure. Max. Hardness Is 320 Hv10.
Can anyone can define the max value. Service is not sour.however operating temp is high from 500 to 700 deg celcius.
Regards,
NAJM UL ISLAM
WELDING ENGINEER
+ 974 66645393
-- WELDING ENGINEER
+ 974 66645393
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/groups/opt_out.
No comments:
Post a Comment