| Dear experts, Could you please clarify following; If I have qualified WPS with backing & qualified Welder without backing; with this can we weld single side welded joint without backing.Please reply me in the light of ASME SEC IX. Thanks in advance Ali Mhaskar | ||
| |
Welding Bevel angle is Provided for below reasons,1. ACCESSIBILITY for the torch and electrode from the Root to the Cap.2. DECREASE the Heat Conductivity along the bevel edges, more the bevel angle lesser the Heat conductivity3. PROPER FUSION along the bevel edges, narrow the bevel will result in improper fusion(lack of side wall fusion)4. BETTER FLOAWABILITY of the Liquid metal.From the above it is clear that for some special materials like DSS, decrease in weld bevel will result in more conductivity and increased Heat input along the bevel edges and HAZ, may be one of the reason for its restriction.Thanks & Regards J.Gerald Jayakumar 0091-9344954677
From: N VENKATESWARA PRASAD <weldengr.velosi@gmail.com>
To: materials-welding <materials-welding@googlegroups.com>
Sent: Wednesday, January 25, 2012 10:06 AM
Subject: [MW:13564] Decrease in bevel angle - Essentail variable as per Shell DEP
Dear All,
As per Shell DEP 30.10.60.18, the decrease in angle is essentail
variable. What is concept behind it? Is is applicable for Compound/
composite angle joint design also. As per this joint design up to 19
mm the bevel will be 37.5 degrees, later it will be only 10 degres.
My concept is the anlge is only for accessability and in case of DSS,
Nickel alloys higher anlge for better wetting. It should not
applicable for carbon steels.
Please debate on this.
The Clause as per DEP as given below:
11.1 Add new clause 11.1.4 It is the Manufacturer's responsibility to
ensure that
welding operations are carried out in accordance with the
parameters as specified on the qualified WPS. Unless
otherwise specified by local regulations, welding procedures
shall be qualified in accordance with ISO 15607 and/or
ASME IX. Irrespective of the design code, welding procedure
qualifications shall be re-qualified when any of the following
conditions occur:
• Joints
- A change from double sided to single sided welding, or
vise versa (delete) but not the converse;
- A decrease in welding groove angle of more than 10
degrees.
• Consumables
- Any change of consumable classification;
- Any change in consumable brand name when corrosion
testing or impact testing is required;
- Any change in size of more then 1 mm of consumable in
the root run of single sided welds.
• Welding position
Change in welding direction (vertical up to vertical down
welding or vice versa).
--
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in most situations, you will receive numerous suggestions with several
electrodes falls under E80XX. If you are not going with PWHT, i would
rather suggest you to go with E81T1.
To me, TIG process is not suitable for large diameter - 30".
Rgds
2012/1/25, Lakshman Kumar.B <lakshmankumar4@gmail.com>:
> DEAR,
>
>
>
> Is GTAW is required?
>
> We used SMAW or GMAW for the root and remaining for with FCAW or GMAW which
> is more economical and good work progress.
>
>
>
> Thanks and Regards................?
>
>
> cid:image001.jpg@01CC3048.5836D9B0
>
> Lakshman Kumar.B|Manager |Lanco Infratech Limited
>
> Plot No 1255 | Sanjeevani chowk | Mahanadi vihar | Cuttack 753004
>
> Phone : + 91 671 2445033 | Mobile : +91 9937286851 |www.lancogroup.com
>
> Go Green|The future will thank you
>
>
>
>
>
> From: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com] On Behalf Of Mohamed Elsayed (
> BTG)
> Sent: Tuesday, January 24, 2012 9:42 AM
> To: materials-welding@googlegroups.com
> Subject: [MW:13556] Welding API 5L X70 By ER 80S-Ni1 + FOX EV 60
>
>
>
> Dear,
>
>
>
> We have material API 5L X70 , 30" O.D ; Thk. 13.33mm , we are planning to
> do PQR using ER 80S-Ni1(mod) 2.4mm for GTAW and E8018-C3H4R - Bohler welding
> consumable. Is it correct?
>
>
>
> Please advice.
>
>
>
>
>
> Thanks
>
> Mohamed
>
>
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@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.
>
> --
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> To unsubscribe from this group, send email to
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> 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.
>
--
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Hi
// I have problem in our site that, we found some fabricated pipes ( as per B31.3) the parent material thickness reduced by grinding (or due to any handling mark) more than 12.5% is not acceptable,//
I would like to clarify that, the 12.5% reduction in thk, mentioned by you is taken from material specification. Not from ASME B31.3. B31.3 specifies only the minimum thickness. See 304. So, it is Designers decision to say whether this piping can withstand the intended service or not.
See 328.4.2 (b)(4) and 328.4.3(c) for base metal repairs pertaining to alignment. But, for base material repairs on other areas, B31.3 neither specify nor prohibit.
In these situations, If the thickness is found to be less than the minimum required thickness, and confirmed by Designer/Owner,
you may do the repair as per material specification and carryout the necessary inspection.
Note that any repairs on the parent material requires owners/purchasers prior approval and done with the qualified procedure/welders.
BR
M.Vijayan
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of jesti fer
Sent: Monday, January 30, 2012 5:23 PM
To: materials-welding@googlegroups.com
Subject: [MW:13583] Pipe damaged during fabrication
Dear Experts,
I have problem in our site that, we found some fabricated pipes ( as per B31.3) the parent material thickness reduced by grinding (or due to any handling mark) more than 12.5% is not acceptable,
is there any possibility to build up (Buttering) the base metals. Where can I will get the reference
jestifer
--
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--Dear Experts,I have problem in our site that, we found some fabricated pipes ( as per B31.3) the parent material thickness reduced by grinding (or due to any handling mark) more than 12.5% is not acceptable,is there any possibility to build up (Buttering) the base metals. Where can I will get the referencejestifer
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1st check with the designer about the required thickness based on pressure calculation and corrosion allowance
2nd if it is not accepted by the designer … use your welding procedure for filling this portion with filler metal … in my opinion (I did not checked B31.3) you are not in need for reference because you have approved PQR and WPS and it is a welding issue
3rd 12.5% is a +/- ratio for pipe factory fabricator not a design issue
Senior QC Eng.
Ahmed Osman
OCI Egypt
+20 122 5880434
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of jesti fer
Sent: Monday, January 30, 2012 4:23 PM
To: materials-welding@googlegroups.com
Subject: [MW:13583] Pipe damaged during fabrication
Dear Experts,
I have problem in our site that, we found some fabricated pipes ( as per B31.3) the parent material thickness reduced by grinding (or due to any handling mark) more than 12.5% is not acceptable,
is there any possibility to build up (Buttering) the base metals. Where can I will get the reference
jestifer
--
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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.
--Dear Experts,I have problem in our site that, we found some fabricated pipes ( as per B31.3) the parent material thickness reduced by grinding (or due to any handling mark) more than 12.5% is not acceptable,is there any possibility to build up (Buttering) the base metals. Where can I will get the referencejestifer
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 |
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Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist & Consultant
A corrosion sensitivity test shall be performed as a manufacturing procedure qualification test (MPQT) on the CRA layers of austenitic steel and N i-base alloy as described below. The purpose of this test is to assure proper manufacturing procedures for austenitic steel and Ni-base alloys. It is not a test to determine susceptibility for use with a particular environment.
a) Summary of test procedure. The testing procedure shall conform to the requirements of the latest editions of ASTM A262, Practice E or Practice B. or ASTM G28, Method A or ASTM G48, Method A (Section 8), whichever is suitable for the cladding or liner material and as agreed between the purchaser and manufacturer. The method thatis used shall be agreed to between the purchaser and the manufacturer. Other practices may be agreed upon.
If the Dish Head is welded ,Partial Data Report is Mandatory as per
ASME Sec VIII Div 1 ,UG-120 ,4(C) ,form U-2A to be signed by ASME
Authorised Inspector.Any weld repair to be cleared by Dish Head
manufacturer by approved WPS / PQR with approval of AI and End User.
Thanks and Regards,
R.Lenin
On Jan 26, 1:38 am, Vino Varghese <vinopvargh...@gmail.com> wrote:
> Dear All,
>
> Is it mandatory to request a Partial Data Report(PDR) signed by ASME A.I
> from the Contractor who manufactured Dish End for the Pressure Vessel?
> Actually the Dish End we requested was an Explosion bonded Clad Dish End,
> but dish end manufacturer found some repair on the clad portion and intent
> to do repair with Approved WPS/PQR.
>
> *The Service is LETHAL and the Final Vessel will be subjected to Heat
> Treatment as per UW-2.*
>
> Whether we can accept this Dish End without a PDR as we are the sole
> responsible manufacturer of Pressure Vessel?
>
> Please let me know the relevant Records/Reports needed as per ASME Sec VIII
> Div 1 to be instructed to our Sub contractor while deliverying this Dish
> End and the Code reference.
>
> Looking forward all your postive reponse ASAP...
>
> *Thanks & Regards*
> *Vino -Doha, Qatar*
--
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Dear Experts
I am qualified a PQR for CRO Welding using Inconel 625 on Carbon Steel plate. As per ASME IX, mandatory test is:
- Dye Penetration Test
- Transverse Side Bend Test
- Chemical Analysis
- Hardness (location may refer to ISO 15056 Fig 6 for NACE req.)
- Macro Etch photo
What I am confusing is that Intergranular Corrosion (G28 Method A) and Ultrasonic Test is applicable to conduct or not?
Thanks
BR; Abdul Ghafor Mohamad
--
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What I am confusing is that Intergranular Corrosion (G28 Method A) and Ultrasonic Test is applicable to conduct or not?
Thanks
BR; Abdul Ghafor Mohamad
Hi
The post weld heat treatment can be any of heat treatment type like normalizing & tempering, annealing, solution annealing, stress relieving (each having different temperature limits) etc depends upon the type of steel and code of construction. And similarly the time ranges also.
So, the Code restricts that the user to use the same heat treatment and time as encountered in the production joint.
That’s why it is restricted to use the PQR at least meeting the 80% of time(s) at temperature(s) as encountered on the production joint.
BR
M.Vijayan
From: Somkiat Patcharanaruemon [mailto:soiy7777777@gmail.com]
Sent: Thursday, January 26, 2012 5:37 AM
To: Vijayan Munuswamy
Cc: materials-welding@googlegroups.com
Subject: Re: 13563] Interpret IX-04-15
Dear Vijayan
Thanks you very much for your advice but I still confuse because in QW 407.2 state that "A change in temperature and time range" and this WPS change only in time range but temperature still the same so this clause shouldn't be essential variable otherwise why the code shouldn't state"A change in temperature or time range" instead of "A change in temperature and time range" please advice.
BRG
Solomon
2012/1/25 vijayan <vijayan.m@madinagulf.com>
Hi
Because the wps is not written as per the QW.407.2. it means the WPS can
support only up to 108 minutes (not 3.5 Hours)
BR
M.Vijayan
-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of solomon
Sent: Wednesday, January 25, 2012 4:45 AM
To: Materials & Welding
Subject: [MW:13563] Interpret IX-04-15
Dear Expert
.
According to interpretation below could you please explain why the answer is
"No". In my understanding WPS has change only time range but doesn't change
in the temperature(logic "and" mean change both time and temperature).
In SEC IX QW-407.2 state that "A change in the postweld heat treatment (see
QW-407.1) temperature and time range"
Interpretation: IX-04-15
Subject: QW-403.7, Base Metal Thickness Qualification and QW-407.2, PWHT
Temperature and Time Range Date Issued: December 22, 2004
File: BC04-1595
Question (1): Will a procedure qualification test coupon on 1.5 in.
thick P-No. I, Gr. 2 material and
postweld heat-treated at I,lOO°F for 1.5 hr with supplementary essential
variable requirements met, support a WPS with supplementary essential
variable requirements for production welding on 8 in. thick P-No. 1, Gr. 2
material that is PWHT at l,lOO°F for 3.5 hr?
Reply (1): No
--
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The views expressed/exchnaged in this group are members personel views and
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w.r.t. applicable code/standard/contract documents.
This communication and any files transmitted with it are confidential and may also be privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient or the person responsible for delivering it to the intended recipient(s), please note that any form of distribution, copying or use of this communication or information contained in it is strictly prohibited and may be unlawful. If you have received this communication in error please return it to the sender, and delete the material from any computer. We reserve the right to monitor email communications through normal internal and external networks. We believe but not warrant that the email and the attachments are virus free. The statement and opinions expressed in this communication are those of the writer and do not necessarily represent those of Madina Group, whose registered office address is
P.O. Box 20459, Doha, Qatar.
Tel. +974 44600818
Fax. +974 44603143
Dear All,--I would like to know about mode of metal transfer in FCAW welding process. Please share some information regrading short circuting, globular transfer, spray transfer .Thanks in advance.Manoj
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To me, TIG process is not suitable for large diameter - 30".
Rgds
2012/1/25, Lakshman Kumar.B <lakshmankumar4@gmail.com>:
> DEAR,
>
>
>
> Is GTAW is required?
>
> We used SMAW or GMAW for the root and remaining for with FCAW or GMAW which
> is more economical and good work progress.
>
>
>
> Thanks and Regards................?
>
>
> cid:image001.jpg@01CC3048.5836D9B0
>
> Lakshman Kumar.B|Manager |Lanco Infratech Limited
>
> Plot No 1255 | Sanjeevani chowk | Mahanadi vihar | Cuttack 753004
>
> Phone : + 91 671 2445033 | Mobile : +91 9937286851 |www.lancogroup.com
>
> Go Green|The future will thank you
>
>
>
>
>
> From: materials-welding@googlegroups.com
> [mailto:materials-welding@googlegroups.com] On Behalf Of Mohamed Elsayed (
> BTG)
> Sent: Tuesday, January 24, 2012 9:42 AM
> To: materials-welding@googlegroups.com
> Subject: [MW:13556] Welding API 5L X70 By ER 80S-Ni1 + FOX EV 60
>
>
>
> Dear,
>
>
>
> We have material API 5L X70 , 30" O.D ; Thk. 13.33mm , we are planning to
> do PQR using ER 80S-Ni1(mod) 2.4mm for GTAW and E8018-C3H4R - Bohler welding
> consumable. Is it correct?
>
>
>
> Please advice.
>
>
>
>
>
> Thanks
>
> Mohamed
>
>
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@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.
>
> --
> To post to this group, send email to materials-welding@googlegroups.com
> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@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.
>
--
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Hi
Because the wps is not written as per the QW.407.2. it means the WPS can
support only up to 108 minutes (not 3.5 Hours)
BR
M.Vijayan
-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of solomon
Sent: Wednesday, January 25, 2012 4:45 AM
To: Materials & Welding
Subject: [MW:13563] Interpret IX-04-15
Dear Expert
.
According to interpretation below could you please explain why the answer is
"No". In my understanding WPS has change only time range but doesn't change
in the temperature(logic "and" mean change both time and temperature).
In SEC IX QW-407.2 state that "A change in the postweld heat treatment (see
QW-407.1) temperature and time range"
Interpretation: IX-04-15
Subject: QW-403.7, Base Metal Thickness Qualification and QW-407.2, PWHT
Temperature and Time Range Date Issued: December 22, 2004
File: BC04-1595
Question (1): Will a procedure qualification test coupon on 1.5 in.
thick P-No. I, Gr. 2 material and
postweld heat-treated at I,lOO°F for 1.5 hr with supplementary essential
variable requirements met, support a WPS with supplementary essential
variable requirements for production welding on 8 in. thick P-No. 1, Gr. 2
material that is PWHT at l,lOO°F for 3.5 hr?
Reply (1): No
--
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For more options, visit this group's bolg at
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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.
This communication and any files transmitted with it are confidential and may also be privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient or the person responsible for delivering it to the intended recipient(s), please note that any form of distribution, copying or use of this communication or information contained in it is strictly prohibited and may be unlawful. If you have received this communication in error please return it to the sender, and delete the material from any computer. We reserve the right to monitor email communications through normal internal and external networks. We believe but not warrant that the email and the attachments are virus free. The statement and opinions expressed in this communication are those of the writer and do not necessarily represent those of Madina Group, whose registered office address is
P.O. Box 20459, Doha, Qatar.
Tel. +974 44600818
Fax. +974 44603143
Thus the maximum time (Tmax) at temperature is : (Tqual/Tmax) X 100 = 80
Or Tmax = Tqual X ( 100/80) = 1.5 hr X (5/4) = 1.875 hours
So the PQR does not have a long enough hold time to support the proposed WPS's 3.5 hour hold time.
John A. Henning
Senior Welding & Materials Engineer
-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of solomon
Sent: Tuesday, January 24, 2012 7:45 PM
To: Materials & Welding
Subject: [MW:13563] Interpret IX-04-15
Dear Expert
.
According to interpretation below could you please explain why the answer is "No". In my understanding WPS has change only time range but doesn't change in the temperature(logic "and" mean change both time and temperature).
In SEC IX QW-407.2 state that "A change in the postweld heat treatment (see QW-407.1) temperature and time range"
Interpretation: IX-04-15
Subject: QW-403.7, Base Metal Thickness Qualification and QW-407.2, PWHT Temperature and Time Range Date Issued: December 22, 2004
File: BC04-1595
Question (1): Will a procedure qualification test coupon on 1.5 in.
thick P-No. I, Gr. 2 material and
postweld heat-treated at I,lOO°F for 1.5 hr with supplementary essential variable requirements met, support a WPS with supplementary essential variable requirements for production welding on 8 in. thick P-No. 1, Gr. 2 material that is PWHT at l,lOO°F for 3.5 hr?
Reply (1): No
--
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--
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You can do CSWIP 3.2 with out attending CSWIP 3.1
But You have to attend CSWIP 3.1 exam then immediately the day after
you can sit CSWIP 3.2
Once if you passed CSWIP 3.1 then only TWI allows you to attend CSWIP
3.2
I am Navaneetha from England,
My suggestion is CSWIP 3.1 is not at related to expeience. Even 15
years experience holder in Welding usually fails in CSWIP 3.1
The Unique of CSWIP 3.1 is Measuring & Recording the Weld defects, Its
like a Police Training.
How much knowledge you have to cathch the weld defects.
So bettet attend CSWIP 3.1 & wait for one year.Then attend CSWIP 3.2
In CSWIP 3.2 you have good & deep knowledge in Heat Treatment, RTFI
otherwise CSWIP 3.2 is Big bang for you
Best of Luck
Regards
NAV
On Jan 22, 12:08 pm, mohamed maher <mohamed.ahmed.ma...@gmail.com>
wrote:
> dear, all
> I need to take CSWIP 3.2 but I am not certified CSWIP 3.1 and
> according to Requirements for the Certification of Visual Welding
> Inspectors, Welding Inspectors and Senior Welding Inspectors (fusion
> welding) - (Document No CSWIP-WI-6-92 11th Edition September 2011).
> Implementation Date September 2011 ,
> I can take CSWIP 3.2 directly with no need to be certified with CSWIP
> 3.1 if i have 5 years experince .
>
> My question now , I want to take the exam of CSWIP 3.2 and I am
> not certify with CSWIP 3.1 and I have more than 6 years experince .
>
> Thank you for your time and consideration ,Looking forward to hear
> from you.
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Suppose the ratio exceed 0.8, it lead to solidification crack. Depth &
width ratio is one the factors contribute solidification crack.
Rgds
2012/1/25, N VENKATESWARA PRASAD <weldengr.velosi@gmail.com>:
> Dear All,
>
> As per Shell DEP 30.10.60.18, the decrease in angle is essentail
> variable. What is concept behind it? Is is applicable for Compound/
> composite angle joint design also. As per this joint design up to 19
> mm the bevel will be 37.5 degrees, later it will be only 10 degres.
>
>
> My concept is the anlge is only for accessability and in case of DSS,
> Nickel alloys higher anlge for better wetting. It should not
> applicable for carbon steels.
> Please debate on this.
>
> The Clause as per DEP as given below:
>
>
> 11.1 Add new clause 11.1.4 It is the Manufacturer's responsibility to
> ensure that
> welding operations are carried out in accordance with the
> parameters as specified on the qualified WPS. Unless
> otherwise specified by local regulations, welding procedures
> shall be qualified in accordance with ISO 15607 and/or
> ASME IX. Irrespective of the design code, welding procedure
> qualifications shall be re-qualified when any of the following
> conditions occur:
> • Joints
> - A change from double sided to single sided welding, or
> vise versa (delete) but not the converse;
> - A decrease in welding groove angle of more than 10
> degrees.
> • Consumables
> - Any change of consumable classification;
> - Any change in consumable brand name when corrosion
> testing or impact testing is required;
> - Any change in size of more then 1 mm of consumable in
> the root run of single sided welds.
> • Welding position
> Change in welding direction (vertical up to vertical down
> welding or vice versa).
>
> --
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> To unsubscribe from this group, send email to
> materials-welding+unsubscribe@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.
>
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yes you can write 3.2 directly.but you have to subbmitt required documents.regardsmd.sajid alam
From: mohamed maher <mohamed.ahmed.maher@gmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Sunday, 22 January 2012 3:08 PM
Subject: [MW:13541] need your help please : Can I take CSWIP 3.2 without hold CSWIP 3.1 ?
dear, all
I need to take CSWIP 3.2 but I am not certified CSWIP 3.1 and
according to Requirements for the Certification of Visual Welding
Inspectors, Welding Inspectors and Senior Welding Inspectors (fusion
welding) - (Document No CSWIP-WI-6-92 11th Edition September 2011).
Implementation Date September 2011 ,
I can take CSWIP 3.2 directly with no need to be certified with CSWIP
3.1 if i have 5 years experince .
My question now , I want to take the exam of CSWIP 3.2 and I am
not certify with CSWIP 3.1 and I have more than 6 years experince .
Thank you for your time and consideration ,Looking forward to hear
from you.
--
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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.
--
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Hi
See below the interpretation. The weld build thickness may be considered as governing thickness for PWHT. but, B 31.3 does not address this weld build up.
However, as per material specification ( I think you are using SA105), any weld repair requires heat treatment. See below.
B3 1.3 Interpretations No. 14 14-01
Interpretation: 14-01
Subject: ASME B31.3b-1994 Addenda, Para. 331.1.3(b), and Table 331.1.1, Heat Treatment
Requirements
Date Issued: June 22, 1995
File: B3 1-94-064
Question (1): In accordance with ASME B3 1.3-1993 Edition, Addenda b, does the portion of para.
331.1.3@) which states “the thickness through the weld in any plane” refer to the weld thickness?
Reply (1): Yes.
Question (2): In accordance with ASME B31.3-1993 Edition, Addenda b, does the minimum
material thickness stated in para. 331.1.3(b) refer to the requirements of Table 331.1.1?
Reply (2): Yes.
Question (3): In accordance with ASME B31.3-1993 Edition, Addenda b, can the BHN (Brinell
Hardness Number) equivalent of tensile strength of material before PWHT be considered a minimum
value?
Reply (3): The Code does not address BHN equivalent of tensile strength or minimum BHN.
Excerpt from SA105
BR
M.Vijayan
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Vikas Bhandari
Sent: Monday, January 23, 2012 6:19 PM
To: materials-welding@googlegroups.com
Subject: [MW:13553] PWHT requirements -ASME B31.3
Dear all
My question is that if a 15 mm build is to be carried out on a 25 mm thick flange face, would I require to do a post weld heat treatment? What would be the governing thickness in this case?
Section 3331.1.3 states that governing thickness shall be that of thicker component measured at the joint except in case of branch and fillet.
So does that implies weld joint? i.e. 15 mm in this case?
Any supporting document (eg ASME clarifications) would be much appreciated.
Thanks in advance.
Best regards
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