Expiry period for SMAW consumable-reg
Pandiaraj
generally what is expiry period for SMAw consumables (Flux coated) dose ASME Sec II-C refers regarding this, if so please refer which class.in the consumable wraper only manufactured date is given but not the expiry date.
Thanks & Regards,
K.Pandiarajan.
Suresh
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Thanks & Best Regards,
Suresh
Mobile No: 91-92 92 905 905
Kathalingam Babu
----- Original Message -----
muthu barathi
no codes define
On Mon, 31 Jan 2011 11:15:12 +0530 wrote
>
Hi
There is no expiry date for the consumables.
You can use the consumables , as long as the condition is
good.
May be you need to get approvals for the batch's if the
approval is expired for the concerned consumables lot
Thanks & Regards,
K. Babu
>----- Original Message -----
From:
Suresh
To: material...@googlegroups.com
Sent: Monday, January 31, 2011 1:15
PM
Subject: Re: [MW:9575] Expiry period for
SMAW consumable-reg
>
Hii
Generally Consumable expiry date is up to 2 monsoons,or Manufacturer
should specify in Batch/Lot certificate .
>
>
On Mon, Jan 31, 2011 at 9:35 AM, Pandiaraj
>
Dear Experts,
> generally what is expiry
period for SMAw consumables (Flux coated) dose ASME Sec II-C refers
regarding this, if so please refer which class.in the consumable
wraper only manufactured date is
given but not the expiry date.
>
>Thanks &
Regards,
>
>K.Pandiarajan.
>
>
>--
>To post
to this group, send email to material...@googlegroups.com
>To
unsubscribe from this group, send email to materials-
>
For more options, visit this group's bolg at http://materials-
welding.blogspot.com/
>
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.
>
Thanking You,
Honesty is the best Policy
With Warm Regards,
Muthu Barathi P
Mobile No:00962788269821 (Jordan)
00962775401951
 |
PREM SHANKARDUTT NAUTIYAL
Pl. browse the reply already given in earlier thread - MW:4205 :
It’s true that boiler or pressure vessel codes or structural welding codes do not specify the shelf-life or expiry dates of welding electrodes.
For example, ASME Nuclear Codes Sec-III, Clause & NB, NC-2440 specifies that:- Suitable storage and handling of electrodes, flux, and other welding materials shall be maintained. Precautions shall be taken to minimize absorption of moisture by fluxes and cored, fabricated, and coated electrodes.
The shelf-life of welding electrodes to a great extent depends on electrode manufacturer’s methods, quality control procedure and how electrodes are handled. Depending on the coating type, packing (hermetically sealed or not), storing methods and ambient conditions, humidity etc, electrodes may last long or less. However as a good practice and based on electrode manufacturer’s guidelines it may be worth considering:-
· Solid Wires, GTAW/GMAW-No shelf Life.
· Cored Wire –FCAW- No shelf life
· SMAW – The rule should be FIFO (First in First Out). Electrodes where the coating shows sign of flaking, cracks etc certainly should be discarded without much thoughts. Electrodes not older than 2-3 years but in good condition may be used. If required the diffusible hydrogen test could be repeated. Electrodes older than 3 years generally should not be used as a good engineering rule.
· SAW Fluxes- Shelf life 2-3 years maximum subject to the flux condition and amount of fine particles/dust generated and behavior during welding.
Thanks.
Pradip Goswami, P.Eng
Regards
Prem Nautiyal
On Mon, 31 Jan 2011 09:48:41 +0530 wrote
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CELL : 9769316004
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Ilangkumaran Kumarasamy
Dear Mr Pradip,
Yes your statement is perfectly correct.
Thank you,
Ilangkumaran
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sambath kumar
There is no code specify the shelf life of electrode, its depends on
the manufacturer recommendation.
I had also faced the problem with Lincoln electrodes certificates, as
they mention in the lot certificates in 1 year. So raised the quarry
in Lincoln Company about the shelf life of electrode; accordingly they
send the warranty/validity certificate (Here I attached the attached
warranty/validity certificates & lot certificates -for your
information)
So when ever you face the shelf life problem with electrode kindly
contact the manufacturer and get the validity confirmation from the
company. its the only record or proof of electrode shelf life and
solution.
Rgs,
Sambath Kumar
> * Solid Wires, GTAW/GMAW-No shelf Life.
>
> * Cored Wire -FCAW- No shelf life
>
> * SMAW - The rule should be FIFO (First in First Out). Electrodes where the
> coating shows sign of flaking, cracks etc certainly should be discarded
> without much thoughts. Electrodes not older than 2-3 years but in good
> condition may be used. If required the diffusible hydrogen test could be
> repeated. Electrodes older than 3 years generally should not be used as a
> good engineering rule.
>
> * SAW Fluxes- Shelf life 2-3 years maximum subject to the flux condition and
> amount of fine particles/dust generated and behavior during welding.
> Thanks.
> Pradip Goswami, P.Eng
>
>
>
> Regards
>
> Prem Nautiyal
>
>
>
>
>
> On Mon, 31 Jan 2011 09:48:41 +0530 wrote
>>Dear Experts,
>
> generally what is expiry period for SMAw consumables (Flux coated) dose ASME
> Sec II-C refers regarding this, if so please refer which class.in the
> consumable wraper only manufactured date is given but not the expiry date.
>
>
>
> Thanks & Regards,
>
>
>
> K.Pandiarajan.
>
>
>
>
>
> --
>
> To post to this group, send email to material...@googlegroups.com
>
> To unsubscribe from this group, send email to
> materials-weld...@googlegroups.com
>
> For more options, visit this group's bolg at
> http://materials-welding.blogspot.com/
>
> 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.
>
>
>
> PREM S NAUTIYAL
> CELL : 9769316004
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