In my case manufacturer is not providing the test results in any of their TC.
Do client have the right to reject the TC.
My interpretation is as per Sec-II part C SFA 5.01, table 1 F, which refer 6.2 which is
The level of testing shall be the manufacturer's
standard. The statement, "The product supplied
shall meet the requirements of the applicable AWS filler
metal specification, when tested in accordance with that
specification" and a summary of the typical properties of
the material, when tested in that manner, shall be supplied
upon written request. The lot classification will be the
manufacturer's standard.
and as per Table 2 Schedule 1 required test, It is required.
My interpretation is wrong or am i missing something?
Please guide me.
These replies are incorrect.
Please review the highlighted sections of the attached portions of A/SFA-5.1 and A/SFA-5.01, procurement guidelines.
In general the filler metal manufacturer only needs to perform testing on a representative lot of material. As long as the manufacturing process does not change, additional testing is not required. Unless specified otherwise in the purchase order, material will be supplied per Schedule 1/F of Table 1 in SFA-5.01.
If you want specific heat/lot testing you must specify that in your purchase order. You will pay extra for this paper (even though it is more than likely that the filler metal manufacturer has already performed it as a part of their routine).
Regarding re-drying or re-baking. If the electrodes are supplied in hermetically sealed containers, no re-drying or re-baking is required. In the US it is typical for all low hydrogen electrodes to be shipped in such containers. Additional drying typically is detrimental to the coating and should not be performed needlessly.
I have been told, that in some places, low hydrogen electrodes may be shipped in the "green" condition to minimize damage to the coating due to rough handling. If electrodes are in such a condition, only then is drying of the as received electrodes required.
John A. Henning
Welding & Materials
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of c sridhar
Sent: Thursday, July 19, 2012 2:46 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:14900] Diffusible Hydrogen Test of Low Hydrogen Electrode
If the diffusible H2 content specified in the TC falls within the allowable range and acceptable no need to check in every batch.
If the TC values are questionable or if the cold/H2 cracks are noticed often in the weld or if the job is sensitive type, you can cross check the values once in a while.
But, it is mandatory to to re dry/bake all the LH electrodes in the electrode drying oven prior to its use to reduce the moisture content in the coating and reduce the hydrogen level .
sridhar.
From: prem nautiyal <prem_nautiyal26@yahoo.com>
To: materials-welding@googlegroups.com
Sent: Wednesday, 18 July 2012 10:33 PM
Subject: Re: [MW:14892] Diffusible Hydrogen Test of Low Hydrogen Electrode
Yes.
Every low hydrogen electrode e.g. E7018, Batch Test certificate must specify this value. Almost all the reputed consumable manufacturer's check the diffusible hydrogen and report the values in their batch TC.
Please refer Table 11 in SFA-5.1 of ASME Sec. II-C.
Also if you have specified the diffusible hydrogen content requirement in your welding consumable procurement specifications then it is mandatory for consumable manufacturer to report the values.
Regards
Prem Nautiyal
Cell: 9769316004
--- On Wed, 7/18/12, Biplab Pal <biplab.mech@googlemail.com> wrote:
From: Biplab Pal <biplab.mech@googlemail.com>
Subject: [MW:14886] Diffusible Hydrogen Test of Low Hydrogen Electrode
To: materials-welding@googlegroups.com, "chandan.majumdar" <chandan.majumdar@sgs.com>, "JALADHAR JENA" <jdjena2006@yahoo.co.in>, "pinaki boxi" <boxi.pinaki@gmail.com>
Date: Wednesday, July 18, 2012, 9:59 AMDear Experts,
I have a doubt,
Is it mandatory to check the diffusible hydrogen test for every batch of Low Hydrogen electrode as per sec-II part c.
Please give me the code reference.
--
Thanks & Regards
Biplab Pal
Mechanical Inspector (PMT)
YASREF Project
E-mail: biplab.mech@gmail.com
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Thanks & Regards
Biplab Pal
Mechanical Inspector (PMT)
YASREF Project
E-mail: biplab.mech@gmail.com
Information in this email and any attachments is confidential and intended solely for the use of the individual(s) to whom it is addressed or otherwise directed. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the Company. Finally, the recipient should check this email and any attachments for the presence of viruses. Myself accepts no liability for any damage caused by any virus transmitted by this email.
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