Please see some extracts from a publication of Metrode, which provides some guidelines on the hardness requirements for grade 92 steel. You may find the same information in ASTM/ASME specifications also. To reduce hardness , additional SR would be necessary.
While performing welding of any CSEF steel(as P-92), it's advisable to keep Radiography before SR as an optional step depending on the joint thickness, criticality of the component, and many more…. so as to avoid any unpleasant situation as above.
Thanks.
P.Goswami.P.Eng, IWE.
Independent Welding & Metallurgical Specialist
Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/
Email:pgoswami@quickclic.net,pradip.goswami@gmail.com
Cell/Whasapp:1-905-9793232
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Roshan Patel
Sent: June 21, 2019 11:28 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:29739] Abridged summary of materials-welding@googlegroups.com - 4 updates in 4 topics
Dear Experts,
I have one situation I have a job of material SA 182 F92. Hardness required for this material is 269 HBW Max. We had weld the F92 to F92 material. After PWHT we got Hardness around 250 HBW. But after Radiography it was one defect and we repair it. Now the Hardness of repaired portion is around 340 HBW. Now how we reduce it. And what is the Hardness limit of F92 Weld joints ?
On Fri 21 Jun, 2019, 10:23 AM , <materials-welding@googlegroups.com> wrote:
Today's topic summary
View all topics· [MW:29616] API 510 Inspection Interval - 1 Update
· [MW:29730] Welders Qualification - 1 Update
· [MW:29732] Difference in ASTM and ASME material - 1 Update
· As per AWS D1.1 - 1 Update
Kamal Basha <basha2070@gmail.com>: Jun 20 08:51AM +0300
Api 510 inspection interval
If remaining life is 10 years or less
Inspection interval has it is.
If remaining life is greater than 10 years
1/2 of the life is inspection interval
...more
Kamal Basha <basha2070@gmail.com>: Jun 20 08:33AM +0300
Both together
...more
Chiranjeevi A <chiranjeevipuvvula@gmail.com>: Jun 20 07:24AM +0100
Dear all,
We have a situation that we need to weld cap (material P11) to weldolet
with P22 material. Size 2" NPS. Line temp is 560C and pressure 48bar. The
rating of the main header is 1500# P22 ...more
K K <karan.hbl@gmail.com>: Jun 20 05:14AM -0700
Dear Experts,
Please clarify me regarding below mentioned doubts.
As per AWS D1.1
1) As per PQR thickness qualified with 25mm(Test coupon )
But In WPS thickness mentioned 28MM ( 3.2mm ...more
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