[MW:34920] Tubesheet Hole step

Hello Team,

I have one question any tolerance given for tubesheet Hole step.

Please do needful.

Regards,

AP 

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Re: [MW:34921] Tubesheet Hole step

For tube sheet hole groove, Refer TEMA standard clause RB-7.2.4 Tube Hole grooving

On Sun, Apr 28, 2024, 12:33 Patel Ankit <aapatel271@gmail.com> wrote:

Hello Team,

I have one question any tolerance given for tubesheet Hole step.

Please do needful.

Regards,

AP 

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Re: [MW:34922] Tubesheet Hole step

Hello sir,

I am asking for tubesheet Hole grooving step.

Example : Tubesheet hole groove depth given 10.2 & 16.2 mm according. Any tolerance given in tema ??

Regards,

AP.

On Sun, Apr 28, 2024, 14:38 Shahil Saini <sainishahil98@gmail.com> wrote:

For tube sheet hole groove, Refer TEMA standard clause RB-7.2.4 Tube Hole grooving

On Sun, Apr 28, 2024, 12:33 Patel Ankit <aapatel271@gmail.com> wrote:

Hello Team,

I have one question any tolerance given for tubesheet Hole step.

Please do needful.

Regards,

AP 

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[MW:34923] API 1104 WELDER QUALIFICATION

Hi All,

If I qualify a pipe welder in 6G position as per API 1104, is he qualified to weld in 5G position. Please note as per API 1104 not ASME.

Regards, 

Thulaib 

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Re: [MW:34924] API 1104 WELDER QUALIFICATION

Yes, it's qualified in 5g also

Thanks & Best Regards
Saleem manhappulath

Mob:+966533595849
WhatsApp:+919526445936

From iPhone xs

On Sun, 28 Apr 2024 at 8:23 PM thulaib arakkal <thulaibwelding@gmail.com> wrote:

Hi All,

If I qualify a pipe welder in 6G position as per API 1104, is he qualified to weld in 5G position. Please note as per API 1104 not ASME.

Regards, 

Thulaib 

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Re: [MW:34925] API 1104 WELDER QUALIFICATION

Yes he qualifies all positions 

Thanks and Regards,

K.S.Unnikrishnan

Kollara

On 28-Apr-2024, at 9:23 PM, thulaib arakkal <thulaibwelding@gmail.com> wrote:



Hi All,

If I qualify a pipe welder in 6G position as per API 1104, is he qualified to weld in 5G position. Please note as per API 1104 not ASME.

Regards, 

Thulaib 

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Re: [MW:34925] API 1104 WELDER QUALIFICATION

Yes, 

On Sun, 28 Apr 2024 at 19:23 thulaib arakkal <thulaibwelding@gmail.com> wrote:

Hi All,

If I qualify a pipe welder in 6G position as per API 1104, is he qualified to weld in 5G position. Please note as per API 1104 not ASME.

Regards, 

Thulaib 

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Re: [MW:34927] Applicability of Impact requirement as per ASME B31.3

Hi, As per ASME B31.3, Table A1-M,  -46 Deg Celsius is the minimum temperature applicable without impact test.

But Please consider the below note description also before concluding. It is better to do an impact test below -29 degree celsius.

On Wed, Apr 24, 2024 at 4:29 PM 'vinit vani' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Dear All,

Design code – ASME B31.3, Welding Code- ASME BPVC SEC IX

Material  to be used used during Fabrication - SA 333Gr6 (P No.1 Gr. 1) To SA 350-LF2 (P No.1 Gr. 2)

Production Thickness range-5.54mm(Minimum)-9.53mm(Maximum)

PWHT – Nil

MDMT-= -45 Deg Cel.

Kindly give your valuable suggestions for applicability of PQR impact requirement for above details.

Pl.reply with code clause.

Thanks & Regards

Vinit

India

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Re: [MW:34928] API 1104 WELDER QUALIFICATION

Dear,

Yes, according to API 1104, if a pipe welder is qualified in the 6G position, they are generally considered qualified to weld in the 5G position as well. API 1104 typically covers welding standards and procedures for pipeline welding, and it doesn't specifically differentiate between 5G and 6G positions in terms of qualification requirements for welders. Therefore, a qualification in the more challenging 6G position typically implies proficiency in welding positions of equal or lesser difficulty, such as the 5G position. However, it's always essential to review the specific requirements of API 1104 and any relevant project specifications to ensure compliance.

Best regards,

Amol K.B

B.E(Mech), CSWIP 3.2.2, NACE CIP 1 & ASNT LII(4M)

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[MW:34929] ASME SEC VIII Div1- UG-36 & UG-42 Nozzles RF pad requirements & mulitiple Nozzles opening

Dear all,

Kindly refer to the attached images of the 

2 instrument air vessels.

one vessel 6" nozzles with reinforcement pad and other one same 6" nozzles without RF pad. Top head diameter, design pressure, head thickness , nozzle to head weld is internal portrusion with back side welding also same

From UG-36 above 10mm thickness only 2.3/8" ID nozzles can fabricate with out reinforcement pad.

Queries:

1. 6" nozzles required RF pad or not? With details explain 

2. 6" nozzles in-between 2" nozzles with maintain 500mm centre to distance - min distance requirements.

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