Thursday, September 21, 2017

[MW:26826] Welding consumables requirement as per NACE MR0175 for carbon steels

Dear All,

Welding consumables manufacturer [ER70S-2 & ER70S-6] has not stated in TC's that material complies to NACE MR0175  or not. As per my knowledge requirement as per NACE is

The welding consumable shall produce weld Zones meeting Hardness requirement of 250HV10. The Nickel in the welding consumable shall be less than 1%. Welding consumables and procedures that produce a deposit containing more than 1% nickel are acceptable after successful weld SSC qualification by testing in accordance with Annex B.


Also I would like to understand meaning of this line Welding consumables and procedures that produce a deposit containing more than 1% nickel are acceptable after successful weld SSC qualification by testing in accordance with Annex B.


Does that mean that if nickel is less than 1% [ 0.023% in my case] then I do not require any test as per Annex B of NACE and only carry out Hardness test and if its less than 250HV10 then its acceptable?


How can I satisfy my client that consumables available with me is NACE compliant

Regards,
Ankur
7990344780


--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

[MW:26826] Re: special requierment in NACE electrode


Dear James,

Your reply on subject was really helpful. I just wanted to discuss a case of NACE MR0175


Suppose if Welding wire manufacturer (ER70S-2 & ER70S-6) has not specified any NACE compliance in MTC and if weld Zones meeting Hardness requirement of 250HV10 then does that STILL mean that we comply NACE requirements?

Also I would like to understand more of this statement; Welding consumables and procedures that produce a deposit containing more than 1% nickel are acceptable after successful weld SSC qualification by testing in accordance with Annex B. But what if Nickel is less than 1%? Does that mean that SSC is not required if Nickel is less than 1% ?

Would love to hear from you

Regards,
Ankur
7990344780
ankurpandey25@gmail.com
On Tuesday, February 8, 2011 at 10:41:08 PM UTC+5:30, viral talati wrote:
Dear Friends,
Is there any special requierment for electrode used for NACE material welding.

regards

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

Wednesday, September 20, 2017

Re: [MW:26824] Weld overlay shrinkage calculation.

Hi,Friend
There is no ready made formula for shrinkage calculation for ESSC weld overlay in ID of shell  but shrinkage assumption is on the basis of experience and data recorded

Shrinkage depends upon Thickness of the base metal, Strip size i.e. 30,60,90 mm width,used
Current used etc
Generaly lower width with lower thickness of base metal and higher ID of a shell  will have more shrinkage than Higher thk base metal with higher width strip used
You will find more shrinkage for a thickness of 50mm -100mm thk shell with ID above 2.5mtr than >100mm thk shell
My experience of shrinkage allowance   is about 2.5/ 3mm/meter   you take circumstantially or In other word  ID will contract /shrink about 3mm/mtr in dia
Regards
Hegde Prakash



On Wednesday, 20 September 2017 12:16 PM, 'Thaksen Ingole' via Materials & Welding <materials-welding@googlegroups.com> wrote:


Dear Members,

I  would like to know how to calculate the weld overlay shrinkage. For eg. We are performing a weld overlay of SS 347 on SA-387 11 2 plates with an ESW process. The weld overlay will be done after the plate is rolled. The ID of the plate is 2500mm. So what shall be the rolled ID prior to weld overlay so that after weld overlay the ID shall not be less than 2500. If its slightly bigger that would be acceptable but should not be too big else we shall waste time and material.

Could someone guide me to know the formula for the weld shrinkage of the weld overlay.

Thanks and Regards






--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.


Re: [MW:26824] SAIL HARD WPS

Thanq sir,

what will be the filler wire in GMAW process

On Wed, Sep 20, 2017 at 1:17 PM, Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:
yes, u have to do new pqr

THANKS & BEST REGARDS,
KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349

On Wed, Sep 20, 2017 at 12:50 PM, CKML <chaitanyakamal@gmail.com> wrote:
HI

I had Query regarding SAIL HARD /JSP HARD WPS .Is any mandatory to make another WPS for these materials,already i have a WPS of E-250 Gr.B material.

As Per ASME SECIX  based on Essential Variable Wps to be generated or not.

Kindly give the techanical why WPS required.

Regards
CHAITANYA KAMAL.S

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.



--
chaitanya kamal.s

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

Re: [MW:26823] SAIL HARD WPS

yes, u have to do new pqr

THANKS & BEST REGARDS,
KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349

On Wed, Sep 20, 2017 at 12:50 PM, CKML <chaitanyakamal@gmail.com> wrote:
HI

I had Query regarding SAIL HARD /JSP HARD WPS .Is any mandatory to make another WPS for these materials,already i have a WPS of E-250 Gr.B material.

As Per ASME SECIX  based on Essential Variable Wps to be generated or not.

Kindly give the techanical why WPS required.

Regards
CHAITANYA KAMAL.S

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

[MW:26822] SAIL HARD WPS

HI

I had Query regarding SAIL HARD /JSP HARD WPS .Is any mandatory to make another WPS for these materials,already i have a WPS of E-250 Gr.B material.

As Per ASME SECIX  based on Essential Variable Wps to be generated or not.

Kindly give the techanical why WPS required.

Regards
CHAITANYA KAMAL.S

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

[MW:26821] Weld overlay shrinkage calculation.

Dear Members,

I  would like to know how to calculate the weld overlay shrinkage. For eg. We are performing a weld overlay of SS 347 on SA-387 11 2 plates with an ESW process. The weld overlay will be done after the plate is rolled. The ID of the plate is 2500mm. So what shall be the rolled ID prior to weld overlay so that after weld overlay the ID shall not be less than 2500. If its slightly bigger that would be acceptable but should not be too big else we shall waste time and material.

Could someone guide me to know the formula for the weld shrinkage of the weld overlay.

Thanks and Regards






Tuesday, September 19, 2017

[MW:26820] difference between stud bolt b7 and 10.9


I am asking if the stud bolt 10.9 covers stud bolt b7 or not,and  how i can differentiate between bolts


--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

[MW:26826] Welding consumables requirement as per NACE MR0175 for carbon steels

Dear All, Welding consumables manufacturer [ER70S-2 & ER70S-6] has not stated in TC's that material complies to NACE MR0175  or not....