Re: [MW:35087] Abridged summary of materials-welding@googlegroups.com - 1 update in 1 topic

Position is not ess variable in wps

On Thu, 27 Jun 2024, 10:23 , <materials-welding@googlegroups.com> wrote:

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• WPS qualification - 1 Update

WPS qualification

Chandrapal Singh <avioraio@gmail.com>: Jun 26 10:10PM +0530 Is postion consider an essential variable in WPS. If I have a WPS in 4G postion can i use that WPS in 1g, 2G, 3G position.. ...more

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[MW:35088] Dear team,

Can please advice what is the meaning for SUS Material and what's are the heat treatment procedures. Attached details below.

Thanks in advance

From 

Ganesh  

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[MW:35079] WPS concern

Hi,

We have qualified WPS as per AWS D1.1 for material IS 2062 E350 material , now we want to weld material IS2062 E250 material, Can we use the same WPS ?

as IS 2062 E250 - Tensile strength - 410 MPA & 

IS2062 E350 - Tensile strength - 490 MPA

Please suggest your views.. Urgent.

Regards,

SHRI SAMARTH FABRICATION LLP

NILESH R. GAVHANE

Quality Engineer

Mobile No.: 9970571796

Email  : Quality@ssfab.in

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Re: [MW:35080] WPS concern

IS 2062 is unassigned material as per

AWS D1.1

You will be using E7018 for both  IS2962 Gr 250 and IS 2062 Gr 350 

Speak to QAC and elaborate above details  that both are Carbon steels.

Unassigned to Unassigned is qualified and it qualifies 

Unassigned to Unassigned 

Grade is different but E 7018 mechanical  properties are compatible to both materials.

So is acceptable 

Sent from my iPhone

On 22 Jun 2024, at 9:36 AM, 'Quality SSFab' via Materials & Welding <materials-welding@googlegroups.com> wrote:



Hi,

We have qualified WPS as per AWS D1.1 for material IS 2062 E350 material , now we want to weld material IS2062 E250 material, Can we use the same WPS ?

as IS 2062 E250 - Tensile strength - 410 MPA & 

IS2062 E350 - Tensile strength - 490 MPA

Please suggest your views.. Urgent.

Regards,

SHRI SAMARTH FABRICATION LLP

NILESH R. GAVHANE

Quality Engineer

Mobile No.: 9970571796

Email  : Quality@ssfab.in

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Re: [MW:35081] WPS concern

Yes you can use it 

With Regards

Udaya bahaskar.D

+919676270121

On Sat, Jun 22, 2024 at 07:06 'Quality SSFab' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Hi,

We have qualified WPS as per AWS D1.1 for material IS 2062 E350 material , now we want to weld material IS2062 E250 material, Can we use the same WPS ?

as IS 2062 E250 - Tensile strength - 410 MPA & 

IS2062 E350 - Tensile strength - 490 MPA

Please suggest your views.. Urgent.

Regards,

SHRI SAMARTH FABRICATION LLP

NILESH R. GAVHANE

Quality Engineer

Mobile No.: 9970571796

Email  : Quality@ssfab.in

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Re: [MW:35082] WPS concern

As per AWS D1.1 table 6.8 it is not acceptable 

On Sat, 22 Jun 2024 at 12:34 PM, U B <dusroni@gmail.com> wrote:

Yes you can use it 

With Regards

Udaya bahaskar.D

+919676270121

On Sat, Jun 22, 2024 at 07:06 'Quality SSFab' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Hi,

We have qualified WPS as per AWS D1.1 for material IS 2062 E350 material , now we want to weld material IS2062 E250 material, Can we use the same WPS ?

as IS 2062 E250 - Tensile strength - 410 MPA & 

IS2062 E350 - Tensile strength - 490 MPA

Please suggest your views.. Urgent.

Regards,

SHRI SAMARTH FABRICATION LLP

NILESH R. GAVHANE

Quality Engineer

Mobile No.: 9970571796

Email  : Quality@ssfab.in

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Re: [MW:35083] WPS concern

Dear Nilesh,

No, you cannot use the same WPS for IS 2062 E250 material if it was qualified for IS 2062 E350 material. According to AWS D1.1, WPS qualifications are specific to the tensile strength of the material, and IS 2062 E250 and IS 2062 E350 have different tensile strengths (410 MPa vs. 490 MPa). A new WPS qualification is required for IS 2062 E250.  

Regards,

AB

On Sat, 22 Jun 2024 at 09:36, 'Quality SSFab' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Hi,

We have qualified WPS as per AWS D1.1 for material IS 2062 E350 material , now we want to weld material IS2062 E250 material, Can we use the same WPS ?

as IS 2062 E250 - Tensile strength - 410 MPA & 

IS2062 E350 - Tensile strength - 490 MPA

Please suggest your views.. Urgent.

Regards,

SHRI SAMARTH FABRICATION LLP

NILESH R. GAVHANE

Quality Engineer

Mobile No.: 9970571796

Email  : Quality@ssfab.in

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[MW:35084] Interpass Temp.

Dear Experts,

    how to check interpass temp. for a material

thanks 

saleem

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Re: [MW:35085] Interpass Temp.

Dear,

To check the interpass temperature for a material during welding or similar processes, you can follow these steps:

Tools and Equipment Needed:

1. Temperature Measuring Device: Typically, a contact or non-contact thermometer (e.g., infrared thermometer) or temperature-indicating crayons (Tempilstik).
2. Protective Gear: Wear appropriate personal protective equipment (PPE) such as gloves and safety glasses.

Steps to Check Interpass Temperature:

1. Preparation:

   • Ensure the surface is clean and free from any contaminants that might affect the temperature reading.
   • Identify the area where you will measure the temperature. Typically, this should be close to the weld zone but not directly in it.

2. Using a Contact Thermometer:

   • Place the probe of the contact thermometer directly on the material surface.
   • Hold it in place until the temperature stabilizes and take the reading.

3. Using a Non-Contact (Infrared) Thermometer:

   • Aim the infrared thermometer at the area where you want to measure the temperature.
   • Ensure the thermometer is at the correct distance as specified by the manufacturer for accurate readings.
   • Pull the trigger to take the temperature reading.

4. Using Temperature-Indicating Crayons:

   • Select a crayon with a melting point close to your desired interpass temperature.
   • Mark a small area on the material with the crayon.
   • If the crayon mark melts, the material is at or above the temperature indicated by the crayon. If it does not melt, the temperature is below the crayon's melting point.

Best Practices:

• Consistency: Measure the interpass temperature consistently at the same location to ensure accurate monitoring.
• Accuracy: Calibrate your temperature measuring devices regularly for accurate readings.
• Documentation: Record the temperature readings to maintain a log for quality control and compliance with welding procedures.

Tips:

• Ensure there is good contact between the thermometer probe and the material surface for accurate readings.
• When using an infrared thermometer, avoid measuring reflective surfaces unless you have accounted for emissivity adjustments.
• Follow the manufacturer's instructions for using and calibrating your temperature measuring devices.

Safety Considerations:

• Be cautious of hot surfaces to avoid burns.
• Ensure that measuring devices are rated for the temperature range of your application.

By following these steps, you can effectively check the interpass temperature to ensure compliance with welding procedures and maintain the quality of your material.

Regards,

AB

On Sun, 23 Jun 2024 at 17:25, saleem manhappulath <saleemm9526@gmail.com> wrote:

Dear Experts,

    how to check interpass temp. for a material

thanks 

saleem

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Re: [MW:35070] Re: PQR

Please explain how we can select material from mtc of electrode

Thanks & Best Regards
Saleem manhappulath

Mob:+966533595849
WhatsApp:+919526445936

From iPhone xs

On Wed, 12 Jun 2024 at 6:28 PM, Mohd Siraj <mohd52100@gmail.com> wrote:

means you have electrode and looking for Base metal to weld? or you means material of electrode, in that case just look into MTC/filler wire certificate?

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[MW:35070] Bevel degree in thick plate

Concern is to confirm that i am welding as per approved WPS 8 mm Shell course with 60 degree bevel fit-up both sides,  and if i fabricate 130mm thick shell course weld what should be  the appropriate bevel degree (As i don't have WPS now in my hand).

Materials are M.S. A36 for both tanks.

 Designing Code is API 650

Regards,

Mashood Ahmed Khan

EPIC Pvt. Ltd.

P:03462794988, 0309-8885421

E: Mashood@epic.com.pk, mashoodrak1@gmail.com            

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[MW:35070] test coupon dimension for mechanical testing

I would like to know about the dimensions of the test coupon plate which needs to be cut for mechanical testing , as per ASME SEC IX.

Thickness are 6mm, 20mm 25mm.

Regards,

Mashood Ahmed Khan

Site Engineer

EPIC Pvt. Ltd.

P:03462794988, 0309-8885421

E: Mashood@epic.com.pk, mashoodrak1@gmail.com            

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Re: [MW:35075] Bevel degree in thick plate

Dear,

When welding according to an approved Welding Procedure Specification (WPS) for a shell course with a 60-degree bevel fit-up, and then needing to fabricate a thicker shell course, it is crucial to ensure the bevel angle is appropriate for the increased thickness. The following considerations will help determine the appropriate bevel angle for a 130mm thick shell course, assuming materials are ASTM A36 and the design code is API 650:

1. Standard Bevel Angles: For thicker materials, bevel angles are adjusted to ensure proper penetration and weld quality. While a 60-degree included angle is commonly used for thinner sections like 8mm, thicker sections often require adjustments to the bevel angle to accommodate the increased volume of the weld metal and ensure adequate fusion.

2. API 650 Recommendations: API 650 does not prescribe specific bevel angles but emphasizes the importance of joint design to ensure quality and structural integrity. Generally, the bevel angle must provide sufficient access for welding and ensure proper fusion.

3. Typical Bevel Angles for Thick Plates:

   • For plates up to 25mm (1 inch), a typical included angle is 60 degrees.
   • For plates from 25mm to 50mm (1 to 2 inches), the included angle may reduce to around 45-50 degrees.
   • For plates thicker than 50mm, included angles often range between 30 to 45 degrees, with considerations for double-sided welding and multi-pass welding techniques.

4. Fabrication Practices: For a 130mm thick shell course, it is common to use a compound bevel or a J-groove to reduce the amount of weld metal required and to facilitate better welding conditions.

Given these considerations, an appropriate approach for a 130mm thick shell course with ASTM A36 material under API 650 might include:

• Single-V Bevel: If using a single V-bevel, an included angle of around 30-45 degrees might be appropriate. This angle allows for deep penetration while managing the volume of weld metal needed.
• Double-V Bevel: For very thick plates, a double-V bevel could be used to balance the welding from both sides, typically with each side having an included angle of around 30 degrees.

Recommendation: For a 130mm thick shell course, a 30 to 45-degree bevel angle should be appropriate. A double-V bevel (each side 30 degrees) might also be considered for such thickness to ensure welding quality and manage distortion.

Always ensure that any change in bevel angle or welding parameters is reflected in an updated WPS, approved by the relevant authority or quality assurance team, to maintain compliance with API 650 and ensure structural integrity.

AB

On Thu, 13 Jun 2024 at 15:53, Mashood Khan <mashood@epic.com.pk> wrote:

Concern is to confirm that i am welding as per approved WPS 8 mm Shell course with 60 degree bevel fit-up both sides,  and if i fabricate 130mm thick shell course weld what should be  the appropriate bevel degree (As i don't have WPS now in my hand).

Materials are M.S. A36 for both tanks.

 Designing Code is API 650

Regards,

Mashood Ahmed Khan

EPIC Pvt. Ltd.

P:03462794988, 0309-8885421

E: Mashood@epic.com.pk, mashoodrak1@gmail.com            

 "The man who best understands time is he who is not taken aback by its proceedings." 

 (Ali Ibn Abi Talib)

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Re: [MW:35075] test coupon dimension for mechanical testing

Dear,

According to ASME Section IX, the dimensions of the test coupon plate for mechanical testing depend on the type of test being performed and the thickness of the material. Here is an overview based on the thicknesses you mentioned (6mm, 20mm, and 25mm):

1. Tensile Test Specimens:

For tensile tests, the standard dimensions for the test coupon are defined in QW-462.1(a) and QW-462.1(b) of ASME Section IX.

• Plate Thickness ≤ 8 mm (e.g., 6 mm):

  • For plate thickness less than or equal to 8 mm, the entire thickness of the test specimen shall be tested.
  • The specimen width shall be 12.5 mm.
  • The length of the reduced section should be at least 50 mm for the tensile test.

• Plate Thickness > 8 mm (e.g., 20 mm and 25 mm):

  • For thicker plates, the thickness of the test specimen taken from the coupon should match the thickness of the welded plate.
  • The width of the test specimen is typically 12.5 mm.
  • The length of the reduced section should be at least 50 mm for the tensile test.

2. Bend Test Specimens:

For bend tests, the dimensions of the test coupons are specified in QW-462.2 of ASME Section IX.

• Plate Thickness ≤ 10 mm (e.g., 6 mm):

  • The width of the bend specimen is 38 mm.
  • The length of the bend specimen should be sufficient to ensure that a 180-degree bend can be made without the specimen being constrained.

• Plate Thickness > 10 mm (e.g., 20 mm and 25 mm):

  • The width of the bend specimen is typically 38 mm.
  • The thickness of the bend specimen should be 10 mm, so for plates thicker than 10 mm, the bend specimen is typically machined down to 10 mm thickness.

3. Charpy V-Notch Impact Test Specimens (if required):

For impact testing, the dimensions are given in QW-462.3 of ASME Section IX.

• Standard Charpy V-Notch Test Specimens:

  • The standard specimen size is 10 mm x 10 mm x 55 mm with a V-notch.

• Sub-Size Specimens:

  • If the material thickness does not allow for a full-size specimen, sub-size specimens can be used, e.g., 10 mm x 7.5 mm or 10 mm x 5 mm.

Summary of Specimen Dimensions by Thickness:

• 6 mm Thickness:

  • Tensile: Full thickness, 12.5 mm width, 50 mm reduced section length.
  • Bend: 38 mm width, full thickness.

• 20 mm Thickness:

  • Tensile: Full thickness, 12.5 mm width, 50 mm reduced section length.
  • Bend: 38 mm width, machined down to 10 mm thickness.

• 25 mm Thickness:

  • Tensile: Full thickness, 12.5 mm width, 50 mm reduced section length.
  • Bend: 38 mm width, machined down to 10 mm thickness.

It is essential to follow the exact requirements specified in ASME Section IX for the dimensions of test coupons to ensure compliance and the validity of the mechanical tests.

AB

On Thu, 13 Jun 2024 at 15:53, Mashood Khan <mashood@epic.com.pk> wrote:

I would like to know about the dimensions of the test coupon plate which needs to be cut for mechanical testing , as per ASME SEC IX.

Thickness are 6mm, 20mm 25mm.

Regards,

Mashood Ahmed Khan

Site Engineer

EPIC Pvt. Ltd.

P:03462794988, 0309-8885421

E: Mashood@epic.com.pk, mashoodrak1@gmail.com            

 "The man who best understands time is he who is not taken aback by its proceedings." 

 (Ali Ibn Abi Talib)

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Amol K.B

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Re: [MW:35057] REQUEST

Pl. clarify whether it is aluminium-coated mild steel, pure Aluminium or Aluminium alloys.

If it is al. alloy, it's grade. 

Sridhar.

On Tue, 4 Jun 2024 at 20:34, Eseosa Agho Otoghile <saaoplus77@gmail.com> wrote:

Hello Guys, 

Please what kind of filler wire is used for the welding of Aluminium Steel.

Thank you and Best Regards, 

Eseosa Otoghile 

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Re: [MW:35059] Re: API 650 Bottom Plate Distortion

Hello it depend of tank diameter:

API 650 2021  7.5.3   Roundness

 

Radii measured at 0.3 m (1 ft) above the bottom corner weld shall not exceed the following tolerances:

Tank Diameter m (ft)

Radius Tolerance mm (in.)

< 12 (40)                                                                              ± 13 (1/2)

From 12 (40) to < 45 (150)                                                   ± 19 (3/4) 

From 45 (150) to < 75 (250)                                                  ± 25 (1)

� 75 (250)                                                                           ± 32 (11/4)

El jueves, 6 de junio de 2024 a la(s) 3:52:12 a.m. UTC-6, Abd Ur Rehman escribió:

how much tolerance is acceptable in circumference (API650) storage tanks.

On Wed, May 29, 2024 at 12:11 PM Anand ch <chana...@gmail.com> wrote:

Dear Abd Ur Rehman,

Out-of-plane distortion equal to 1 percent of the tank radius is considered acceptable."
While that's not an API requirement, that should be a measure of industry standard, 

and that plate distraction not affected on length of the plate that is acceptable range means it will accept the bottom plate 

On Saturday 25 May, 2024 at 11:06:14 am UTC+5:30 Abd Ur Rehman wrote:

Hello everyone hope u all be fine 
my question is that , as per ur experince how much API 650 Bottom Plate Distortion is acceptable .

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[MW:35060] Combination of welding process in a welder certificate

Hey Dear;

I've  reviewed welder certificate for combination of two process SMAW +FCAW as per AWS D1.6 and I've refused this certificate because of 

1- the supporting WPS's is made individually and not combined WPS for SMAW+FCAW together

2- some essential variables are different for the two process.

3- range of deposited weld metal is different.

4-electrod type is different.

My Question here;

Is the AWS D1.6 accepted combination in process for welder qualification and certificate??

 

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Re: [MW:35061] SS clading on CS

It is better to use 309MoL

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

ISO 9712 Level 2 in VT,

ASNT-Level II in PT,MT,RT & UT,

LA ISO 9001-2015,

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Wed, Jun 5, 2024 at 1:21 PM Mashood Khan <mashood@epic.com.pk> wrote:

Dear, 

The current circumstances is ,

Vessel is SS316 and I am welding a SS316 4mm plate on the CS flange as a cladding.

I want to know if I weld the SS316 Cladding plate on CS Flange with SS309. is it any problem with their composition?

Second is that SS309 is compatible with SS316 if I totally weld with SS309 Electrode.

Regards,

Sent with Mailsuite  ·  Unsubscribe

06/05/24, 12:42:33 PM

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Re: [MW:35062] SS clading on CS

Dear, 

Use 309Mo for better results 

On Wed, Jun 5, 2024 at 1:21 PM Mashood Khan <mashood@epic.com.pk> wrote:

Dear, 

The current circumstances is ,

Vessel is SS316 and I am welding a SS316 4mm plate on the CS flange as a cladding.

I want to know if I weld the SS316 Cladding plate on CS Flange with SS309. is it any problem with their composition?

Second is that SS309 is compatible with SS316 if I totally weld with SS309 Electrode.

Regards,

Sent with Mailsuite  ·  Unsubscribe

06/05/24, 12:42:33 PM

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[MW:35065] PQR

Dear Team

  we have plane to PQR with E11018-g electrode as per Sec ix, kindly suggest the material for mentioned electrode 

thanks

saleem

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Re: [MW:35066] Re: API 650 Bottom Plate Distortion

50mm acceptable, lets know if it tank is in service?, refer api 653., by the way bottom plate distortion refer as settlement, better to refer with correct terminology.

On Friday, June 7, 2024 at 9:20:00 PM UTC+3 agum...@gmail.com wrote:

Hello it depend of tank diameter:

API 650 2021  7.5.3   Roundness

 

Radii measured at 0.3 m (1 ft) above the bottom corner weld shall not exceed the following tolerances:

Tank Diameter m (ft)

Radius Tolerance mm (in.)

< 12 (40)                                                                              ± 13 (1/2)

From 12 (40) to < 45 (150)                                                   ± 19 (3/4) 

From 45 (150) to < 75 (250)                                                  ± 25 (1)

� 75 (250)                                                                           ± 32 (11/4)

El jueves, 6 de junio de 2024 a la(s) 3:52:12 a.m. UTC-6, Abd Ur Rehman escribió:

how much tolerance is acceptable in circumference (API650) storage tanks.

On Wed, May 29, 2024 at 12:11 PM Anand ch <chana...@gmail.com> wrote:

Dear Abd Ur Rehman,

Out-of-plane distortion equal to 1 percent of the tank radius is considered acceptable."
While that's not an API requirement, that should be a measure of industry standard, 

and that plate distraction not affected on length of the plate that is acceptable range means it will accept the bottom plate 

On Saturday 25 May, 2024 at 11:06:14 am UTC+5:30 Abd Ur Rehman wrote:

Hello everyone hope u all be fine 
my question is that , as per ur experince how much API 650 Bottom Plate Distortion is acceptable .

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