Re: [MW:16297] AWS E347-15 E347-16 Stainless Steel Welding Rod

[Nandesh Kumar]

What is your application of the said electrodes? What complaint that the welders are complaining? What do you mean by "Quality of the electrodes"? Also, what is the brand and trade name of both. Or else contact manufacturer, who is the best advisor. ವಂದನೆಗಳೊಂದಿಗೆ / Best regards, Nandesh Kumar A Abu Dhabi, UAE P.S. : Please don't print this e-mail unless you really need to. --- On Sat, 22/12/12, welding <samirme...@gmail.com> wrote: From: welding <samirme...@gmail.com> Subject: [MW:16297] AWS E347-15 E347-16 Stainless Steel Welding Rod To: material...@googlegroups.com Date: Saturday, 22 December, 2012, 6:54 AM Dear Expert, Wt reference to the subjected matter, kindly provide the difference between E347-15 and E347-16. as initially we were using E347-15 and it working good but now we hv changed to E347-16 and our welders are starts complaining ab the quality of electrode. pls advice if it need some other Technic to weld or parameter variation.  -- 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/ 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.

[c sridhar]

difference between E347-15 and E347-16. as initially we were using E347-15 and it working good but now we hv changed to

E347-16

E 347-15  is a basic version of 19/10/Nb  and welded using DC EP (+) Polarity, while E347-16 is a rutile  version of same 19/10/Nb

and welded using AC (or) DC EP.

In fact it should be easier to weld with rutile type ( E347-16)  and it  gives good finish compared to basic type. Current  for both are

same and pl. check.

Sridhar.

---

From: Nandesh Kumar <nandes...@rocketmail.com>
To: material...@googlegroups.com
Sent: Saturday, 22 December 2012 2:45 PM
Subject: Re: [MW:16304] AWS E347-15 E347-16 Stainless Steel Welding Rod

[kannayeram gnanapandithan]

1. E347-15 will have better penetration than E347-16 but 15 is difficult to handle than 16. mostly 16 is used for surfacing and finish is superior than 15

Pandithan

Welding Consultant

[Maulik Thakkar]

Dear,
Request you to refer ASME SEC IX (for studying variables) and IIC....

Regard,
Maulik Thakkar

[Samir Mehta]

Dear Sir,

Thks for the advice, also u r requested to go through the attachment and do the needful pls

Samir Mehta

Engineer - Welding & Projects

JPIOS

Abu Dhabi - UAE

+971 55 94 25 327

[c sridhar]

Mr.Samir Mehta,

Have seen the details and comments as follows:

1. The welds shown in the middle pic. (think  it should be with E 347-15) are no doubt good.

2. Coating on L H type electrodes are bit medium heavy. Stringer runs always gives very good bead finish and ripple factors.

3. On the other hand the  bead done with E 347-16  (3rd pic.) was more wide i.e., it is a weave bead and produces

    more heat in put and poor ripples - that is what you have got.

4. Stringer run produces less heat in put competitively and is good for SS welding. Weaving if done should be restricted to

    max. 2 times dia. of core wire to get best results.  

5. Blue colour seen on the weld bead is due to formation of Chromium-oxides and may result in corrosion while in service..

   It is not desirable.

6. Use stringer runs with E347-16 also throughout  like in basic coated electrodes and you will get same results.

Sridhar.

  

---

From: Samir Mehta <samirme...@gmail.com>
To: materials-welding@googleg
roups.com
Sent: Sunday, 23 December 2012 4:16 PM
Subject: Re: [MW:16318] AWS E347-15 E347-16 Stainless Steel Welding Rod