Materials & Welding: December 2017

Sunday, December 31, 2017

Re: [MW:27244] Aluminum welding 6061-T6 mechanical test bend failure

What is your joint configuration ? what is the purpose ?

Regards,

Johnson Prabu

On Saturday 9 December 2017, 10:31:47 AM GMT+3, Sathish Kumar <sathishmech04@gmail.com> wrote:

Dear All
Thanks for the feedback.

I have tried with fillerwire ER4043 also in trial basis. But same problem we have facing.

Wrap around bend test 16T is followed for bend test. Ultra high purity argon used for welding. Spray transfer mode is followed with current 190-220 Amps, Volt 22-24, HI- 0.9KJ/mm with no weaving.

But facing same problem. Any other inputs need to be added, kindly Clarify

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Re: [MW:27243] tack weld on the bevel

If you use Good Welder for Tack Weld then you can make tack weld in the bevel and incorporate the Tack weld in Final weld or else it is advisable to use Bridge Tacks

Thanks & Regards

J.Gerald Jayakumar

0091-9344954677

On ‎Sunday‎, ‎December‎ ‎31‎, ‎2017‎ ‎12‎:‎14‎:‎08‎ ‎PM‎ ‎IST, 44897 <malgireddy.2007@gmail.com> wrote:

Dear experts,

Can we allow tack weld on the bevel face during fit up or

we need to weld base metal to base metal.

Best regards

[MW:27242] tack weld on the bevel

Dear experts,

Can we allow tack weld on the bevel face during fit up or

we need to weld base metal to base metal.

Best regards

[MW:27241] Argon gas consumption in tig welding

Dear Exparts,

Kindly help me or advice me how to calculate argon gas consumption in
TIG welding process , for piping single V joints. We are using liquied
Argon.

Rakesh Oza
Shop Supervisor,
Abu Dhabi

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Friday, December 29, 2017

[MW:27240] RE: 27229] Material Selection for Conveyor chain

Sodium Silicate is not much corrosive , either as flakes or when molten. In fact various literatures suggested use of this chemical as corrosion inhibitors under different conditions.

The crucial factor could be continues heating and water quenching cycle , which could introduce thermal fatigue.

One simple solution, with respect to change material of construction could to switch to 310 SS (https://www.rolledalloys.ca/alloys/stainless-steels/310/en/). This may help.

Thanks.

P.Goswami.P.Eng, IWE.

Welding & Metallurgical Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@quickclic.net,pradip.goswami@gmail.com

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Firoz Ahmed Makrani
Sent: December 27, 2017 4:05 PM
To: materials-welding@googlegroups.com
Subject: [MW:27229] Material Selection for Conveyor chain

Dear Experts.

Could anyone suggest the right material for a conveyor chain; following is the service condition:

Temperature: 450 deg C in one run and quenched by water in the return run,

Cargo: Sodium Silicate Flakes received in molten phase and conveyed in open air

Material currently being used: SS304 the life of the chain is 6months maximum.

Thank you very much

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Re: [MW:27238] Re: WPS/PQR, Range Qualified

Range qualified 5 - 200 mm (if impact not required)

Refer attached interpretation screen shot

On 28-Dec-2017 5:36 PM, "utreshwar" <utreshwarmiskin98@gmail.com> wrote:

hi
can anyone know what is the range of qualification for 40mm thk plate (QW-403.8) for FCAW process. because QW-451 note-3 not shows FCAW process so confused. whether 2T or 5-200mm

On Sunday, 11 October 2009 10:53:27 UTC+5:30, Shashank Vagal wrote:
Hi Group Members,
Please see the following and advise.
Shashank Vagal

Query:

dear every one,

i have this problem i need to know the thickness range or pipes diameter range for the wps in which standard i think its in asme sec 9 but where ???

for exmple if i have wps for thickness 15 is it cover the 20 mm

waiting answer please

regards

My Reply:

A WPS is a guideline to ensure joint integrity as proven by PQR + applicable mech tests + NDT. It is intended for all job sizes once the welding technique used proves itself in these tests. The sizes etc come in to picture by qualifying welder on test coupons of a given size as per your job requirements. ASME IX stipulates weld metal deposit and not job size. Please ref to QW 450 - 461.

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[MW:27238] RE: 27235] Material Selection for Conveyor chain

Could thermal fatigue be a reason of the failures?

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of RAJESH
Sent: Thursday, December 28, 2017 8:41 AM
To: Materials & Welding
Subject: [MW:27235] Material Selection for Conveyor chain

Hi friend,
For high temperatures you can use SS 316Ti..
RAJESH B

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Thursday, December 28, 2017

Re: [MW:27237] Re: WPS/PQR, Range Qualified

Range qualified will be 5--200. GMAW & FCAW treated identical for qualifications as per table QW -255.

On 28 Dec 2017 5:36 pm, "utreshwar" <utreshwarmiskin98@gmail.com> wrote:

hi
can anyone know what is the range of qualification for 40mm thk plate (QW-403.8) for FCAW process. because QW-451 note-3 not shows FCAW process so confused. whether 2T or 5-200mm

On Sunday, 11 October 2009 10:53:27 UTC+5:30, Shashank Vagal wrote:
Hi Group Members,
Please see the following and advise.
Shashank Vagal

Query:

dear every one,

i have this problem i need to know the thickness range or pipes diameter range for the wps in which standard i think its in asme sec 9 but where ???

for exmple if i have wps for thickness 15 is it cover the 20 mm

waiting answer please

regards

My Reply:

A WPS is a guideline to ensure joint integrity as proven by PQR + applicable mech tests + NDT. It is intended for all job sizes once the welding technique used proves itself in these tests. The sizes etc come in to picture by qualifying welder on test coupons of a given size as per your job requirements. ASME IX stipulates weld metal deposit and not job size. Please ref to QW 450 - 461.

Now, send attachments up to 25MB with Yahoo! India Mail. Learn how.

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[MW:27236] Re: WPS/PQR, Range Qualified

hi
can anyone know what is the range of qualification for 40mm thk plate (QW-403.8) for FCAW process. because QW-451 note-3 not shows FCAW process so confused. whether 2T or 5-200mm

On Sunday, 11 October 2009 10:53:27 UTC+5:30, Shashank Vagal wrote:

Hi Group Members,
Please see the following and advise.
Shashank Vagal

Query:

dear every one,

i have this problem i need to know the thickness range or pipes diameter range for the wps in which standard i think its in asme sec 9 but where ???

for exmple if i have wps for thickness 15 is it cover the 20 mm

waiting answer please

regards

My Reply:

A WPS is a guideline to ensure joint integrity as proven by PQR + applicable mech tests + NDT. It is intended for all job sizes once the welding technique used proves itself in these tests. The sizes etc come in to picture by qualifying welder on test coupons of a given size as per your job requirements. ASME IX stipulates weld metal deposit and not job size. Please ref to QW 450 - 461.

Now, send attachments up to 25MB with Yahoo! India Mail. Learn how.

[MW:27235] Material Selection for Conveyor chain

Hi friend,
For high temperatures you can use SS 316Ti..
RAJESH B

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[MW:27233] P Number and Group

What p-number and group is CSA 44 gr 38W?
What reference is that from?

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Re: [MW:27233] Re: WQT

how, is it permitted to use 2 welders having different qualification (Position) engaged in a single production joint, if yes, pl give code ref. thanks

Virus-free. www.avast.com

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE, AWS-CWI, CSWIP 3.1,

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Thu, Dec 28, 2017 at 8:51 AM, 'Rudolf' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Yes.

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Re: [MW:27232] Re: WQT

Yes.

[MW:27229] Material Selection for Conveyor chain

Dear Experts.

Could anyone suggest the right material for a conveyor chain; following is the service condition:

Temperature: 450 deg C in one run and quenched by water in the return run,

Cargo: Sodium Silicate Flakes received in molten phase and conveyed in open air

Material currently being used: SS304 the life of the chain is 6months maximum.

Thank you very much

Wednesday, December 27, 2017

[MW:27229] Re: WQT

6G welder can do T,K,Y connection PJP

Now question is:
If CJP T,K,Y joint Root welding by 6GR welder and filling capping by 6G.As 6G welder is qualified for PJP. Is it possible?

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[MW:27229] Re: Reduction of wall thickness of dishends after forming.

Dear,

Kindly refer Mandatory Appendix 32 of ASME Sec. VIII Div.1 & also ask designer to calculate required minimum thickness.

You have also option of Corrosion Allowance.

Regards,

On Thursday, 21 December 2017 12:41:38 UTC+5:30, Punit pandey wrote:

Hello friends,

we are fabricating dishends with 70 mm thick and 1371 mm I.D .And we hot form the blank the thickness of the final product its thickness is reduces to 3.2 mm after forming and after rectification it becomes 62mm thick and we want more than 63mm what we will do, can anyone suggest me.

Thanks & Regards,
Punit pandey.
Email-pun...@gmail.com

Re: [MW:27228] NUMBER OF WELDERS ESTIMATION / CALCULATION REQUIRED FOR ONE API 650 STORAGE TANK CONSTRUCTION??...HOW TO CALCULATE? AND ESTIMATE THE WELDERS FOR TANK?

Mr. Vijay

Could you share some data related to tank estimation if you have anything like excel or word file??....

On Sun, Oct 1, 2017 at 6:26 PM, Vijay Patre <vijay.patre09@gmail.com> wrote:

calculate welding inch dia for complete tank, as per required time for construction and accordingly calculate the welder requirement.

On Oct 1, 2017 2:09 PM, "API 650 TANK CONSTRUCTION" <gurunath.gm@gmail.com> wrote:
Hi

please any one guide me

How to calculate the number of welders required for one tank construction?

Any hints for welders estimation for one tank???????............any one give hints

Any Procedure for the estimation of no of welders required to be calculated for one API 650 storage tank construction work?

Please share your ideas and

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GURUNATH. M .G

CRUDE OIL TANKS ENGINEER

HYUNDAI ENG & CONST CO.LTD

SATAH AL RAZABOOT PLANT FACILITIES PROJECT

PACKAGE - 4 (SARB - P4)

P.O.Box 95016, 2^nd Floor Al Fahim Group Building

Plot 8, M 4, Musaffah

Abu Dhabi. U.A.E

MOBILE : +971502878681

E-MAIL ID : - gurunath.sarbp4@hdec.co.kr

gurunath.gm@gmail.com

Tuesday, December 26, 2017

Re: [MW:27227] Why high stress developed in P_91 materials

comment by c c girotra

The p91 grade materail is high cr amd mo alloyed steel and these elements cause air hardeing and by corollary also increase tensile strength hence stresses are bound to be there. It is 90,000psi class material.CR and Mo help resist oxidation resistance at high temp and creep resistance.

Plain carbon steel has no alloying/ no air hardening material and has uts of 60,000 to 70,000 psi only.(42kg/mm2--52kg/mm2)

CCGirotra

On Friday, November 3, 2017 at 3:54:53 PM UTC+5:30, gerr...@yahoo.com wrote:

Thermal expansion of P91 steel is higher than carbon steel and one of the reason for increased stresses.
Thermal conductivity of P91 steel is lesser than Carbon steel and may be reason for slow cooling.

Normally, P91 steel will of Higher Thickness than Carbon steel and that will be one of the reasons for Higher stresses.

Microstructure will be Martensite after welding and which will be further Tempered to obtain Tempered Martensite.
Thanks & Regards
J.Gerald Jayakumar
0091-9344954677

On Friday, November 3, 2017, 7:06:57 AM GMT+4, 'Rajesh Kasvala' via Materials & Welding <material...@googlegroups.com> wrote:

Dear Expert

Please tell me why high stress developed in P_91 materials then carbon steel,

Metallurgical point of view, what is changes in structure.

Regard
Rajesh

Sent from Yahoo Mail on Android

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Re: [MW:27226] Base Metal Qualified

Sounds good
Since FCAW was not mentioned on the processes on the note, I thought differently

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Monday, December 25, 2017

Re: [MW:27225] Base Metal Qualified

Base metal: 3/16"-- 8"

Gtaw: 1.25"

Fcaw: 8"

On 25 Dec 2017 8:06 am, "Mikeyyc" <greenfield.mf@gmail.com> wrote:

Welding processes: GTAW/FCAW
Test Coupon thickness: 1.5"
GTAW weld size: 0.625; FCAW - 0.875"
What will be the base metal qualified range in WPS?
Maximum t For GTAW and FCAW?

Thank you in advance

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Re: [MW:27224] Base Metal Qualified

Base metal 1.5inch

On 25-Dec-2017 8:06 am, "Mikeyyc" <greenfield.mf@gmail.com> wrote:

Welding processes: GTAW/FCAW
Test Coupon thickness: 1.5"
GTAW weld size: 0.625; FCAW - 0.875"
What will be the base metal qualified range in WPS?
Maximum t For GTAW and FCAW?

Thank you in advance

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[MW:27222] Base Metal Qualified

Welding processes: GTAW/FCAW
Test Coupon thickness: 1.5"
GTAW weld size: 0.625; FCAW - 0.875"
What will be the base metal qualified range in WPS?
Maximum t For GTAW and FCAW?

Thank you in advance

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[MW:27222] Jig Plunger

What will be jig plunger radius if 1/4" of P21 material is welded with F22 filler metal? Reference to ASME IX

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Sunday, December 24, 2017

Re: [MW:27221] Straightness Criteria for APL 5L X52M

Dear Friends,

Yes I agree with Mr. Hossein & jayakumar.

Thanks,

Bala

On Wed, Dec 13, 2017 at 12:49 PM, 'hossein sarpasi' via Materials & Welding <materials-welding@googlegroups.com> wrote:

hi dear sir

please be informed that as per API 5L STD.
The tolerances for straightness shall be as follows.
a) The total deviation from a straight line, over the entire pipe length, shall be ≤ 0,2 % of the pipe length,

b) The local deviation from a straight line in the 1,0 m (3.0 ft) portion at each pipe end shall be
≤ 4,0 mm (0.156 in).

best regards
`h.sarpasi

On Wednesday, December 13, 2017, 10:45:41 AM GMT+3:30, Rajendra Jadhav <raj04aug@gmail.com> wrote:

Dear Sir,

Pls provide me the Straightness Criteria for APL 5L X52M.

waiting for replay.

Regards,
Rajendra Jadhav

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Saturday, December 23, 2017

Re: [MW:27220] pipeline hydrotest package index

Mani,

Please find below the pressure change due to temperature change calculation.

Thanks with warm regards,

Pramodh Ramanunny

+919633251371

If We Work With Determination And Perfection, Success Will Follow

On Friday, December 22, 2017, 10:12:40 AM GMT+3, Mani kandan r <manikandanr21@gmail.com> wrote:

Dear sir,

can anyone send pipeline pressure drop calculation due to temp change......

Thanks in advance

Regards,

R.Manikandan

On Dec 22, 2017 9:41 AM, "'PRAMODH NAIR' via Materials & Welding" <materials-welding@googlegroups.com> wrote:

Pradeep,

For pipeline, refer the below sample (Minimum Requirement)

1.       Pipeline Hydrostatic test diagram

2.       Pipeline schematic diagram and P&ID

3.       Pipeline alignment sheet/ ISO drawing

4.       Line list

5.       Pipe book and tie in weld

6.       Welded sections map (pipe line)

7.       Pre-test critical component removal and test preparation

8.       Punch list

Released for cleaning

9.       Pipeline cleaning inspection

Released for Gauging

10.   Pipe Gauging inspection

Released for filling and flooding

11.   Water analysis report

12.   Pipeline flooding &filling inspection

Released for hydro test

13.   Temperature record (temperature and pressure for stabilization)

14.   Pipeline pressure /volume log(for 50% test pressure)

15.   Air content calculation report

16.   Pressure/temperature log (for100% test pressure)

17.   Pressure/temperature log (for pressure holding)

18.   Pipeline hydrostatic test report

19.   Pipeline dewatering report

20.   Pipeline post test critical components reinstatement

21.   Caliper pigging

22.   Pipeline swabbing check

23.   Pipe drying report

Released for Purging

24.   Final Package Acceptance (Singing of Sub-con/Contractor/Client)

Thanks with warm regards,

Pramodh M.R
+919633251371
+965 94127821

If We Work With Determination And Perfection, Success Will Follow

On Friday, December 22, 2017, 9:17:26 AM GMT+3, Sajeev P <sajeevlaxmi@gmail.com> wrote:

Hi Pradeep,

Please refer attached Document.

Regards,
Sajeev P.

On Thu, Dec 21, 2017 at 8:06 AM, Pradeep kumar hormis <pkhormis@gmail.com> wrote:
Sirs

Could anyone can give me a sample copy of pipeline Hydrotest package index (contents).

Thanks & Regards

PRADEEPKUMAR HORMIS

Mob: +966-58 16 20 710

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Re: [MW:27219] pipeline hydrotest package index

Thank you, sirs, for all suggestions.

Our pipeline for sales Gas to the power plant, 48" API5L Gr 60 Pipe material underground and above ground.

Thanks & Regards

PRADEEPKUMAR HORMIS

Mob: +966-58 16 20 710

On Fri, Dec 22, 2017 at 12:44 PM, joydev dalai <joykolkata07@gmail.com> wrote:

Dear Sir,

please find the Index for your kind referance

On Fri, Dec 22, 2017 at 12:34 PM, Mani kandan r <manikandanr21@gmail.com> wrote:
Dear sir,

can anyone send pipeline pressure drop calculation due to temp change......

Thanks in advance

Regards,

R.Manikandan

On Dec 22, 2017 9:41 AM, "'PRAMODH NAIR' via Materials & Welding" <materials-welding@googlegroups.com> wrote:
Pradeep,

For pipeline, refer the below sample (Minimum Requirement)

1.       Pipeline Hydrostatic test diagram

2.       Pipeline schematic diagram and P&ID

3.       Pipeline alignment sheet/ ISO drawing

4.       Line list

5.       Pipe book and tie in weld

6.       Welded sections map (pipe line)

7.       Pre-test critical component removal and test preparation

8.       Punch list

Released for cleaning

9.       Pipeline cleaning inspection

Released for Gauging

10.   Pipe Gauging inspection

Released for filling and flooding

11.   Water analysis report

12.   Pipeline flooding &filling inspection

Released for hydro test

13.   Temperature record (temperature and pressure for stabilization)

14.   Pipeline pressure /volume log(for 50% test pressure)

15.   Air content calculation report

16.   Pressure/temperature log (for100% test pressure)

17.   Pressure/temperature log (for pressure holding)

18.   Pipeline hydrostatic test report

19.   Pipeline dewatering report

20.   Pipeline post test critical components reinstatement

21.   Caliper pigging

22.   Pipeline swabbing check

23.   Pipe drying report

Released for Purging

24.   Final Package Acceptance (Singing of Sub-con/Contractor/Client)

Thanks with warm regards,

Pramodh M.R
+919633251371
+965 94127821

If We Work With Determination And Perfection, Success Will Follow

On Friday, December 22, 2017, 9:17:26 AM GMT+3, Sajeev P <sajeevlaxmi@gmail.com> wrote:

Hi Pradeep,

Please refer attached Document.

Regards,
Sajeev P.

On Thu, Dec 21, 2017 at 8:06 AM, Pradeep kumar hormis <pkhormis@gmail.com> wrote:
Sirs

Could anyone can give me a sample copy of pipeline Hydrotest package index (contents).

Thanks & Regards

PRADEEPKUMAR HORMIS

Mob: +966-58 16 20 710

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Best Regards,

Joydev Dalai
Dy. Manager - QA/QC
+91-7260898902
JHPL Project,
Kalpataru Power Transmission ltd.

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