Tuesday, November 6, 2012

Re: [MW:15857] requirment of Lateral expansion for P1 TO P8 PQR as ASME Sec IX

as per my knowledge sec ix never asked for le.go through your project piping weld chart if there is anything about le other wise your lab. result must be accepted.
On Sun, Nov 4, 2012 at 9:55 AM, Biplab Pal <biplab.mech@googlemail.com> wrote:
Dear Mr Nandesh,
 
You are absolutely right.
I think in Ankit's case for piping there is not required to mension Lateral Expension for PQR. If his client Std. says they have to do.
Am i right?


 
On Sat, Nov 3, 2012 at 3:55 PM, Nandesh Kumar <nandeshkumar@rocketmail.com> wrote:

UHA-1 SCOPE
The rules in Part UHA are applicable to pressure vessels
and vessel parts that are constructed of high alloy
steel and shall be used in conjunction with the general
requirements in Subsection A, and with the specific
requirements in Subsection B that pertain to the method
of fabrication used.

Hence, the question originator has to mention the service applicable of the PQR in question.

Respectfully,

Nandesh Kumar A


--- On Sat, 3/11/12, Karthik <karthik6684@yahoo.com> wrote:

From: Karthik <karthik6684@yahoo.com>
Subject: Re: [MW:15845] requirment of Lateral expansion for P1 TO P8 PQR as ASME Sec IX
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Date: Saturday, 3 November, 2012, 8:39 AM


Hi,
Please refer ASME Section - VIII,division 1 - UHA 51. According to that Lateral Expansion shall be reported on the Impact test report.

07     UHA-51        IMPACT TESTS
 
Impact tests, as prescribed in UHA-51(a), shall be per- formed on materials listed in Table UHA-23 for all combi- nations of materials and minimum design metal temperatures (MDMTs) except as exempted in UHA-51(d), (e), (f), (g), (h), or (i). Impact tests are not required where the maximum obtainable Charpy specimen has a width along the notch less than 0.099 in. (2.5 mm).
UHA-51(a) Required Impact Testing of Base Metal, Heat-Affected Zones, and Weld Metal
Text Box: --,,,,,,,,,,--,,,,UHA-51(a)(1) Impact test shall be made from sets of three specimens. A set shall be tested from the base metal, a set shall be tested from the heat affected zone, and a set shall be tested from the weld metal. Specimens shall be subjected to the same thermal treatments1 as the part or vessel that the specimens represent. Test procedures, size, location, and orientation of the specimens shall be the same as required in UG-84.
UHA-51(a)(2) Each of the three specimens tested in each set shall have a lateral expansion opposite the notch not less than 0.015 in. (0.38 mm) for MDMTs of −320°F (−196°C) and warmer.


 
Thanks & Regards,

(Karthik)

Karthikeyan.S
QA/QC Manager
German-Thai Boiler Engineering Cooperation Limited.
Rayong Factory ;
379 Moo.6 Soi 8, Tambol Pananikom,
Nikompattana, Rayong 21180 THAILAND
Tel : +66 38 897 035-9 Ext. 137
Hand Phone: 0066 892512282


From: Biplab Pal <biplab.mech@googlemail.com>
To: materials-welding@googlegroups.com
Sent: Saturday, November 3, 2012 11:30 AM
Subject: Re: [MW:15841] requirment of Lateral expansion for P1 TO P8 PQR as ASME Sec IX

Dear Ankit,
 
In my opinion Lateral Expansion value is not mandatory for PQR.
If you see QW-170 of Sec IX, (for Charpy)
 
QW-170 NOTCH-TOUGHNESS TESTS
QW-171 Notch-Toughness Tests — Charpy V-Notch
QW-171.1 General.
Charpy V-notch impact tests shall be made when required by other Sections. Test procedures and apparatus shall conform to the requirements of SA-370.
QW-171.2 Acceptance.
The acceptance criteria shall be in accordance with that Section specifying impact requirements.
If you also go to the SA370 of Sec II part A column 27. (Records)
There is also nothing mensioned about Lateral Expansion.
It may me mandatory for checking the base material but not for PQR.
Anybody have other opinion please refer the code references.
 
 


On Thu, Nov 1, 2012 at 9:58 AM, Ankit PAtel <ankit.patel@orientalindia.net> wrote:
Dear Experts,
 
We have performed a PQR for 25 thk  plate , P1(SA 516 GR-70 ) To P8(SA 240 TP-316L). These PQR has been stress relieved at 620° C & impact tested at -20°C.
The testing laboratory has noted down only the joule values for the impact test, but they have not noted the Lateral Expansion Values P-8 Material.
The Avg. Joules Values observed are as follows:
Weld-72.67 J
HAZ(GR-70)-35.33J
HAZ(GR-316L)-158 J
PARENT(GR-70)-51.33J
PARENT(GR-316L)-298 J
 
Now our TPI says that for GR-316L Lateral Expansion Values is must for acceptance of the PQR.
Is it so?
Or based on these joules values these PQR can be accepted & used for weld having requirement of impact  test at -20°c
 
 
Thanks & Regards
Ankit Patel
Engineer Quality
 
 
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Thanks & Regards
Biplab Pal
Welding Inspector
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Biplab Pal
Welding Inspector
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Subhankar chakraborty
MOB.
 +919996399591

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