Materials & Welding: March 2018

Saturday, March 31, 2018

Re: [MW:27607] Use of SA240 TP 304 WPS to weld SA240 TP 316

Yes you can, but revise WPS to address 316 filler wire

On Fri 30 Mar, 2018 11:53 pm chiluka venkatramulu, <ramuluchiluka@gmail.com> wrote:

Dear All,
Pl clarify the below.
Can I Use SA240 TP 304 WPS to weld SA240 TP 316 material
OR
Shall I need to prepare other WPS based on the above PQR

With best wishes,
Venkat

--
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.

Re: [MW:27607] Regarding WPS

No. 450BR is unassigned as per ASME

On Sat 31 Mar, 2018 2:30 pm Manoj Prabakaran.M, <manojmuthuraj955@gmail.com> wrote:

Yes, you can use the same wps for E 450

--
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:27605] Regarding WPS

A...)P1 to p1 single wps

P2 to p2 single wps

P1 to p2 single wps

On Sat, 31 Mar 2018, 3:06 pm Er Sourav Bohray, <ermechsouravbohray@gmail.com> wrote:

N its common sense diff material diff wps. Open challange to you show me a single wps on which material used is of two diff kind.
But one condition if u are making one weld coupon using two diff grade material than u have to use single wps by mention pno this to p no this.
Eg - pno 1 grp 1 to p no 4 grp 2

On Sat, 31 Mar 2018, 2:30 pm Manoj Prabakaran.M, <manojmuthuraj955@gmail.com> wrote:
Yes, you can use the same wps for E 450

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to a topic in the Google Groups "Materials & Welding" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/materials-welding/U7JdDKH1jdo/unsubscribe.
To unsubscribe from this group and all its topics, 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:27605] Regarding WPS

Guys

You cannot use E250 wps for E450, As per AWS D1.1, E250 is falling under group 1and E450 is under group 4, matching filler to the basement were also different. Refer tables given in Aws D1.1.

7702413147

On Sat, Mar 31, 2018, 14:46 Er Sourav Bohray <ermechsouravbohray@gmail.com> wrote:

No way !! If thickness is diff , if welding process is diff,, if consumable is diff..
nd chemical composition is diff n tensile strength is also diff ...

On Sat, 31 Mar 2018, 2:30 pm Manoj Prabakaran.M, <manojmuthuraj955@gmail.com> wrote:
Yes, you can use the same wps for E 450

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to a topic in the Google Groups "Materials & Welding" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/materials-welding/U7JdDKH1jdo/unsubscribe.
To unsubscribe from this group and all its topics, 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.

Re: [MW:27604] Regarding WPS

No way !! If thickness is diff , if welding process is diff,, if consumable is diff..

nd chemical composition is diff n tensile strength is also diff ...

On Sat, 31 Mar 2018, 2:30 pm Manoj Prabakaran.M, <manojmuthuraj955@gmail.com> wrote:

Yes, you can use the same wps for E 450

--
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
---
You received this message because you are subscribed to a topic in the Google Groups "Materials & Welding" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/materials-welding/U7JdDKH1jdo/unsubscribe.
To unsubscribe from this group and all its topics, 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:27597] Regarding WPS

Yes, you can use the same wps for E 450

--
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.

And one more thing E250 with quality u r using A B0 BR C and which one for E 450.. sr make ur basics clear on mild steel material because if u work on asme material than its very complicated. and

--
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:27597] Regarding WPS

No never n cant. Really u know mean of wps. wps is a written guidline to welder to how to do welding with ranger of variables. Suppose u take material A so u select all the parameters according to chemical , mechanical prop of material A.
But now u want to do welding of material B ie mechanical prop chemical prop are diff u have to guide ur welder on diff ranges diff parameter of variable so parameter n ranges are diff for both material A and B ie u have to make separate wps for both material.
Generally if prop are similar but name of material is diff than also u have to make diff wps.
But u are using diff process ie smaw welding for root saw for 1st layer gtaw for 2nd layer and so on for that u have to memtion that all on same wps for each material A and B

--
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:27597] Eqt for PWT(Automatic welding)

Hello sir,

I want to know about that how will do EQT for PWT(automatic welding).Actually,we are using here GMAW process for PWT and Electrode are using ER-80S.

Please guideline for the eqt

[MW:27597] Change of WPS

Dear All,
Can We prepare a WPS for 316L metal base & ER316L stainless steel with the PQR prepared with ER347 (electrode) F-No: 6 & 304 base metal P-No: 8

Regards,
Venkatramulu

Re: [MW:27597] Re: WPS base metal qualification range

I do not know if you can write a WPS as you indicate, my subject is that you write a WPS P5A with P5A and that new WPS will be useful for welding the following:

1. P5A with P5A

2. P5A with P4

3. P5A with P3

4. P5A with P1

I saw this in an API 510 course for pressure vessels which is based on ASME IX and ASME VIII Div. 1

What you can not do is with this WPS P5A with P5A, weld a material P4 with P4 or P3 with P3, necessarily one of the two materials has to be P5A and the other equal to or smaller than P5A, this has helped you.

Regards!.

2018-03-28 1:38 GMT-06:00 srinivas <srinivasduraisamy@gmail.com>:

Hi

This is Srinivas,

I got a PQR P5A to P5A , So i can write WPS P5A to P4 from that P5A to P5A PQR ?

Based on QW 424.1 ?

On Sunday, 6 April 2014 12:18:17 UTC+8, Binoy Lonappan wrote:
As per Section IX QW 424 for procedure qualification it is given thatt

for base material range of qualification as P15 E metal to P4 metal is
qualified for any metal from P15E to P4 or P3,P1
But P number is an essential variable so what is the actual
interpretation of the above clause

Or does it means if we qualify procedure for P15E +P4 then it is
qualified for the P15E any metal from this group to any metal from
P4,P3 P1 groups

--
With Regards
Binoy Lonappan
+91-9645100560
QAC Engineer
TECCL

--
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.

Ing. José Juan Jiménez Alejandro

Soluciones en Soldadura e Inspección

Cel. 812 352 4606

Skype: jjjimeneza

Twitter: @jjjimeneza

Re: [MW:27597] Use of SA240 TP 304 WPS to weld SA240 TP 316

If you are working with ASME IX and both materials are P8, you can use the same WPS without problems, but verify that two data first.

2018-03-30 8:05 GMT-06:00 chiluka venkatramulu <ramuluchiluka@gmail.com>:

Dear All,
Pl clarify the below.
Can I Use SA240 TP 304 WPS to weld SA240 TP 316 material
OR
Shall I need to prepare other WPS based on the above PQR

With best wishes,
Venkat

--
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.

Ing. José Juan Jiménez Alejandro

Soluciones en Soldadura e Inspección

Cel. 812 352 4606

Skype: jjjimeneza

Twitter: @jjjimeneza

Friday, March 30, 2018

[MW:27577] Use of SA240 TP 304 WPS to weld SA240 TP 316

Dear All,

Pl clarify the below.
Can I Use SA240 TP 304 WPS to weld SA240 TP 316 material

Shall I need to prepare other WPS based on the above PQR

With best wishes,

Venkat

Thursday, March 29, 2018

Re: [MW:27578] AWS D1.1- Measuring Preheat and Interpass Temperature location

Interpass temperature is measured on the weld bead.
Preheat temperature is measured at a distance of min. 75mm from weld bead on parent metal and opposite direction of burner.

Prem Nautiyal

PREM S NAUTIYAL
CELL : 9769316004

From: Kristian Lund Jepsen <KUJ@ramboll.com>
Sent: Sun, 25 Mar 2018 15:58:23 GMT+0530
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Subject: Re: [MW:27567] AWS D1.1- Measuring Preheat and Interpass Temperature location

Hi,

Working with European and/or ISO standards, the locations are stated in ISO 13916.

For thickness (t) less than 50 mm, interpass and preheat should be measured at a distance of 4 x t from the grove, however max. 50 mm from it.

For thickness (t) of more than 50 mm, you may end up with a distance of 75 mm

Yours sincerely

Kristian Lund Jepsen

M. Sc. Mech. Eng.

Senior Chief Consultant

Piping, Mecanical and Layout

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Nallavan
Sent: 25. marts 2018 04:34
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:27564] AWS D1.1- Measuring Preheat and Interpass Temperature location

Dear Experts

Pls refer appl codes/standards and advise correct measuring location for Preheat and Inter-pass Temperature

Question
How far groove joint, preheat and inter-pass temperature shall be measured?
My understanding:-
1-Preheat Temperature shall be measured minimum 3"(75mm) from groove joint
2-Interpass Temperature shall be measures maximum 10mm from groove joint

--
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:roups.google.com/group/materials-welding.
For more options, visit https://groups.google.com/d/optout.

Re: [MW:27578] How filler wire & electrode selected for GTAW & SMAW

Dear friends

Continuation Line is 304L. As below related material welding reference standard

Material A240 TYPE 304L TO A240 TYPE 316L use Filler GTAW ER 308 L OR ER 316L

Please provide the details....and standard....

On Friday, 1 March 2013 05:51:41 UTC+3, sridhar wrote:

Mr. Chandhra Sekar,

With ref. to your request,

                                                                                                    GTAW        SMAW
1. A240 TYPE 304 TO A240 TYPE 304L                  use            ER 304L              E 304L
2. A240 TYPE 304 TO A240 TYPE 316L                  use            ER 316L                E 316L
3. A240 TYPE 316L TO A240 TYPE 316L                use            ER 316L                E 316L
4. A240 TYPE 321 TO A240 TYPE 304                   use            ER 321                E 321

Sridhar.

From: chandra sekaran <chandrase...@gmail.com>
To: material...@googlegroups.com
Sent: Monday, 25 February 2013 3:00 PM
Subject: [MW:16865] How filler wire & electrode selected for GTAW & SMAW

Dear Welding experts,

I like to know how we are selecting the filler wire and electrode for
Steel & Steel alloys.
Based on the tensile strength of the base material it is selected. I
need the specific technical parameters how we are selecting the filler
wire or electrode. Please guide me for the process,

GTAW SMAW
1. A240 TYPE 304 TO A240 TYPE 304L
2. A240 TYPE 304 TO A240 TYPE 316L
3. A240 TYPE 316L TO A240 TYPE 316L
4. A240 TYPE 321 TO A240 TYPE 304

Best regards,

V. Chandrasekaran

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-welding+unsub...@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.
---
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+unsub...@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

Re: [MW:27577] P-22 plate welding ...6-MM plate

Typical cold cracking. You should implement hydrogen back out treatment

2018-03-07 4:35 GMT+02:00 Kannayeram Gnanapandithan <kgpandithan@gmail.com>:

This is due to impurities in base metal. In 6mm thickness weld, HICC is very remote.by seeing the orientation, it is type I crack due to impurities.

On Sun 4 Mar, 2018 11:28 pm anthony chundal, <anthony.chundal@gmail.com> wrote:
you have to do control preheating and also cover the same with thermal insulation wool immediately after welding if you are not doing the immediate PWHT,

Regards,

On Sun, Mar 4, 2018 at 2:15 PM, 'Muhammad Asif' via Materials & Welding <materials-welding@googlegroups.com> wrote:

This message is eligible for Automatic Cleanup! (materials-welding@googlegroups.com) Add cleanup rule | More info

Control maitenance and post heat temperature.

Regards,
Asif

Sent from Yahoo Mail on Android

On Fri, Mar 2, 2018 at 10:16 AM, George Dilintas
<dilintas@gmail.com> wrote:

most probably hydrogen cracking

2018-02-11 12:38 GMT+02:00 pradip kumar Sil <pradipsil@gmail.com>:
Dear Everybody,

We are doing P-22 plate welding, thickness is 6 mm with E-9018B3 ( Dia 2.5 mm) electrode. Preheat is 150 to 200 degree centigrade with little beveling. Site is near the sea area.

We found lot of delayed crack generally after 12 hours. Crack is coming middle of the weldment.

Can anybody inform me cause & corrective action for the same.

Pic attached for your ready reference.

Thanks in advance.
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.

--
Dr. Georgios Dilintas,
Dipl. Ing. In Aeronautic and Space Engineering
Ph.D in Mechanics of Solids - Computational Mechanics
A.I.S, A.N.I, IRCA Lead Auditor
Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

--
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.

--
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.

Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

Re: [MW:27577] PWHT

see table PW-11

2018-03-07 17:15 GMT+02:00 Rahul Mane <rahulmane1596@gmail.com>:

Please clarify me for the post weld heat treatment in case of tube in economiser..what is the minimum dia and thickness of the tube required as per asme and IBR.

--
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.

Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

Re: [MW:27577] UT in lieu of RT

SECTION I

Table PW-11 is requiring volumetric examination (either RT or UT).

In the notes of this table is mentioned that when the thickness is less than 13 mm, then RT shall be used

SECTION B31.1

this section is referenced in SECTION I. So the above requirement applies

2018-03-06 19:55 GMT+02:00 pradip kumar Sil <pradipsil@gmail.com>:

Dear Everybody,
Can we perform UT on the pipe joints as per ASME Sec 1 or B31.1 instead of RT.
Pls clarify with code references.
Thanks in advance
Regards
Pradip

--
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.

Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

[MW:27578] Re: Welding S355 JR

Dear

No, you cant use the S275JR material grade PQR to support welding of S355JR grade steel as per EN ISO 15614 Table 3 which deals about Range of qualification for steel groups and sub-groups.

In this table 3, Note " a" says that - Covers (lets say any PQR) the equal or lower specified yield strength steels of the same group.

That means, your PQR material S275JR's yield strength is 275 MPa. But S355 material yield strength is 355 MPa. So as per NOTE "a" you can use the PQR for equal or lower yield strength material only. As S355JR is higher yield strength material than your PQR, you cant use.

Regards

R Vairamuthu

On Friday, March 23, 2018 at 12:47:48 PM UTC+3, Maghroud Moussa wrote:

Dear experts

Please can you help to tell me if a PQR made with S275JR ( Process is SMAW 111, E 7018) can supporte welding of S355JR according to EN normes.

Best regard

Provenance : Courrier pour Windows 10

[MW:27578] Re: PQR (B31.3 vs B31.1)

Dear

If project spec. simply says only ASME Sec. IX on welding qualification requirements, you can use the PQR as it is.

Suppose, project spec specifies any additional tests during PQR, then you have to go for new PQR incorporating all project specific variables / requirements.

B31.1 OR B31.3 does not deal with any welding qualification requirements.

Regards

R Vairamuthu

On Saturday, March 24, 2018 at 7:37:06 PM UTC+3, Maghroud Moussa wrote:

Dear experts.

I have a PQR for P1 (GTAW, PWHT)qualified with Sec IX and B31.3. Is this PQR can used to supporte PQR in a power plant project that the code is B31.1.

[MW:27577] Regarding Welder Qualification for in Service Piping according to API-1104

Hi Experts,

Please I need the information on Welder Qualification / Welding Procedure Qualification for in Service Piping according to API-1104.

Thanks & Best Regards

K U Masood Ahmad

Maintenance, Modifications & Operations

Middle East

Babcock Borsig Service Arabia Ltd.

1^st & 2 Floor , Al Budoor Tower, Prince Mohammed Bin Fahd Branch Rd, Al Firdaws, Dammam 34251.

P.O. Box 4362, Al Khobar 31952

Kingdom of Saudi Arabia

Mobile +966 559488858

Phone +966 13 868 8833

Fax +966 13 868 6924

ahmad.khalil@bilfinger.com

[MW:27578] Regarding WPS

Dear All,

Can anyone suggest me, I have a WPS in Sec.IX for Material IS 2062 E250 BR , so can i use this WPS for IS 2062 E 450 BR also.

Re: [MW:27577] RE: 27542] Rolling/forming method for Gr.91 Plate

Pls have a look in PG-20 in ASME BPVC Section I

2018-03-23 16:25 GMT+02:00 PGoswami <pgoswami@quickclic.net>:

Hi,
What's the thickness and the diameter involved? It's not always possible to guess the thickness from photographs due to enlargement. Cold forming generally should be avoided for grade-91 steel.
Grade-91 steel is a high tensile steel. Cold bending could lead to cracking and other metallurgical consequences.
API-TR- 938-B recommendations for cold bending of this steel are as follows:-
·         The degree of cold working is usually limited to 17 % maximum (wall thickness reduction), if steels are applied at creep range temperatures.
·         Most users would require that cold worked 9Cr-1Mo-V steels be normalized and tempered if the steels are applied in the creep range and the degree of cold working exceeds 17 %.
·         Cold deformation requires heat treatment by most codes for deformation greater than 5 %

You need to think about warm forming to be on the safe side.

Appreciate response with details.

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 Brajendra Singh
Sent: March 23, 2018 3:19 AM
To: materials-welding@googlegroups.com
Subject: [MW:27542] Rolling/forming method for Gr.91 Plate

Dear expert's,
Please share the forming/rolling requirements for A387 Gr.91, we have tried cold forming/rolling of shell & dish end but always cracking.
Attaching photographs for refrence.
Thanks in advance

Regards,
Brajendra Patel
Mob:+917057406907
--
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.

Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

Re: [MW:27578] Re: If a welder is qualified with SS (Stainless Steel) GTAW, He can weld CS Carbon steel GTAW?

A-No is not essential for performance qualification.

2018-03-24 12:55 GMT+02:00 Vairamuthu <vaira.muthu.78@gmail.com>:

As Mr. Chandra is clearly said the welder can't weld in CS as code very clear on this and very nicely explained by Chandra Ji. which is copied below.

Dear Team,
Both the carbon and stainless steel filler metals
Fno. is 6.
Refer QW-404.15 (A change from one F-no in table
Qw-432 to any F-number or to any other filler
metal, except as permitted in Qw-433.
Qw-433 table says qualified with any F.no6 qualified
For all F-No 6 [refer note1]
Note1 says: deposited wels metal made using a
bare rod not covered by an SFA specification
but which conforms to an analysis listed in
Table QW-442 shall be considered to be classified
As F-no 6.

Means carbon steel F.No 6 (but A.No is 1)
Stainless steel F.No 6 (but A.No is 8)

So, even F.no same but weld metal analysis is
different. So he was not qualified to weld stainless

Best Regards,
Chandra

On Saturday, February 24, 2018 at 1:03:47 PM UTC+3, PK wrote:
Dear Sir,

If a welder is qualified with SS (Stainless Steel) GTAW, He can weld CS Carbon steel GTAW? Need code Referance...

Thanks.
PKM

--
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.

Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

Materials & Welding

Saturday, March 31, 2018

Re: [MW:27607] Use of SA240 TP 304 WPS to weld SA240 TP 316

Re: [MW:27607] Regarding WPS

Re: [MW:27605] Regarding WPS

Re: [MW:27605] Regarding WPS

Re: [MW:27604] Regarding WPS

[MW:27597] Regarding WPS

[MW:27597] Regarding WPS

[MW:27597] Regarding WPS

[MW:27597] Eqt for PWT(Automatic welding)

[MW:27597] Change of WPS

Re: [MW:27597] Re: WPS base metal qualification range

Re: [MW:27597] Use of SA240 TP 304 WPS to weld SA240 TP 316

Friday, March 30, 2018

[MW:27577] Use of SA240 TP 304 WPS to weld SA240 TP 316

Thursday, March 29, 2018

Re: [MW:27578] AWS D1.1- Measuring Preheat and Interpass Temperature location

Re: [MW:27578] How filler wire & electrode selected for GTAW & SMAW

Re: [MW:27577] P-22 plate welding ...6-MM plate

Re: [MW:27577] PWHT

Re: [MW:27577] UT in lieu of RT

[MW:27578] Re: Welding S355 JR

[MW:27578] Re: PQR (B31.3 vs B31.1)

[MW:27577] Regarding Welder Qualification for in Service Piping according to API-1104

[MW:27578] Regarding WPS

Re: [MW:27577] RE: 27542] Rolling/forming method for Gr.91 Plate

Re: [MW:27578] Re: If a welder is qualified with SS (Stainless Steel) GTAW, He can weld CS Carbon steel GTAW?

[MW:34866] Presentation for WPS ,PQR AND WPQ as per ASME Sec IX in power point

Search This Blog

Wikipedia

Followers