Skip to main content

Posts

Showing posts from May, 2024

Re: [MW:35043] Material

Dear Saleem, When planning to perform a Procedure Qualification Record (PQR) and develop a Welding Procedure Specification (WPS) using the E11018M electrode, it's essential to select an appropriate base material. The E11018M electrode is a low-hydrogen, iron-powder type electrode that is designed for welding high-strength steels. Characteristics of E11018M: Classification : The "E" denotes an electrode, "110" indicates a tensile strength of approximately 110 ksi (110,000 psi), "18" specifies that it is a low-hydrogen electrode with iron powder, and "M" signifies it is designed for military or high-strength applications. Applications : This electrode is commonly used for welding high-strength, low-alloy steels in applications that require high mechanical properties such as military and aerospace components, as well as in heavy equipment, pressure vessels, and structural applications. Suggested Base Materials: For the E11018M electrode, you sho...

Re: [MW:35042] Welder qualification

Dear Saleem, To determine whether you can use carbon steel (CS) material for welder qualification when you have a stainless steel (SS) Welding Procedure Specification (WPS) that is for P-8 to P-8 materials, we need to consider the relevant codes and standards governing welder qualification. WPS and P-Number Groups : The Welding Procedure Specification (WPS) you have is for welding P-8 to P-8 materials. In the ASME Boiler and Pressure Vessel Code (BPVC) Section IX, P-Numbers are used to group materials for welding qualification. P-8 refers to a group of austenitic stainless steels. Welder Performance Qualification : According to ASME Section IX, a welder's qualification is typically done to demonstrate their ability to produce sound welds. The welder qualification test should be performed using the same material group (P-Number) as the WPS. This ensures that the welder is proficient in welding the specific materials and processes described in the WPS. Using Different Materials for Q...

Re: [MW:35041] Heat treatment

NACE MR 0175 refers only to the hardness value, not PWHT. Its requirement of client/ designer On Tue, May 7, 2024 at 3:20 PM Shahil Saini < sainishahil98@gmail.com > wrote: Dear all, Can we Exempt PWHT of Weld metal as per NACE MR0175/ISO 15156-2 for carbon steel? Is there any metallurgical changes that will affect the material?? Regards, Shahil Saini  -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CALfBO_8MvjYQsKmSSrVWC3erO3YeWxCDTaNrWZQKRGhEbu6WXQ%40mail.gmail.com . -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received thi...

Re: [MW:35040] Welder qualification

Yes, you can use CS base material with SS filler and purging On Tue, May 7, 2024 at 10:06 PM saleem manhappulath < saleemm9526@gmail.com > wrote: Dear All     I have a ss wps P-8 to P8, i have plan to qualify welder. Can I use cs material for welder qualification with ss wps Thanks & Best Regards Saleem manhappulath Mob:+966533595849 WhatsApp:+919526445936 From iPhone xs -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAKH3OmvOBHxLj-_j4XRJQ-WwN6--u79GGcQr_zND%3DQE4ye%2B6QA%40mail.gmail.com . -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/1227...

Re: [MW:35037] waiting period between welding and NDT

In my understanding, the code  is silent. Check client spec On Mon, May 13, 2024 at 6:44 PM Ali Aghajafari < aghajafari.ins@gmail.com > wrote: Hi all, Is there a waiting period between welding and NDT in the ASME Code in order to find cold cracking. Material is SA 182 Gr. F12 Thanks for your answers -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/9d9445f3-73fc-4b42-996d-0ef94986a351n%40googlegroups.com . -- https://materials-welding.blogspot.com/ https://www.linkedin.com/groups/122787 --- You received this message because you are subscribed to the Google Groups ...

Re: [MW:35037] Difference of 2% of Chromium Content on the Actual PMI VS Sec IIA

You can refer PFI  ( Pipe fabrication Institute ) or 10 % bi lateral tolerance of actual alloy content from code for the base metal. On Fri, May 17, 2024 at 12:14 PM Dinesh Baskaran < dinesh09nov@gmail.com > wrote: Plz refer attach  Thank and regards Dinesh Baskaran On Thu, 16 May, 2024, 12:05 pm Macario Jr. Palola, < macario.palola@gmec.ph > wrote: Sirs, May I ask your valuable inputs with regards to my queries. Base on the attached report, the actual value of %Cr is 20% as per PMI and the value of %Cr in ASME Sec IIA. Now my question, is this acceptable or not ? Thank you in advance. Regards, Mac The information contained in this email is intended for use only by the recipient to whom or which this is addressed. Such information may be privileged, confidential, and/or proprietary subject to the GMEC Email Disclaimer.   Moreover, as we value your privacy, we will handle and safeguard any personal data we receive in this email in accordance with our Privacy Noti...

Re: [MW:35037] I want to know the RT 10% acceptance criteria.

In general : If 10% or 20% lot, one welding joint is rejected , then go for another 2 weld joint for RT in the same lot. If again fails comes from 2 weld joint , then entire lot to tested by RT On Tue, May 21, 2024 at 10:43 AM Amol Betkar < amolbetkar90@gmail.com > wrote: Dear Yasoob, The statement appears to relate to a quality control or inspection procedure. Here's a more precise interpretation of the process: First Test: If one item fails out of a sample with a 10% failure rate, a secondary check (referred to as "Trecer" which might be a typo or specific jargon, possibly meant to be "Tracer") is performed with two additional items. Second Test: If either of the two additional items also fails, it indicates a problem, and the entire batch (or "full lot") must be inspected. Here's a refined version of the process: Initial Inspection: If 10% of the items in the sample fail the initial inspection, perform a secondary inspection with two addit...

Re: [MW:35034] Interpass Temp. Max

You can consider it 315º C as per API RP-582 considering ASME Sec. IX P-No. 1 material. Thanks  C. R. GANDHI On Wednesday, May 29, 2024 at 10:14:20 AM GMT+5:30, P NAVEEN <pnaveen010@gmail.com> wrote: Hii, What will be max Interpass temp of E 250 Br material in SMAW process. Thanks -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/9f7f2618-5371-4558-88cf-9ab14a5d1988n%4...

[MW:35034] Material

Dear All     we are going to do the PQR and WPS, we going to use E11018M, which material can use for this electrode  kindly suggest  Thanks & Best Regards Saleem manhappulath Mob:+966533595849 WhatsApp:+919526445936 -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAKH3OmsW3nWAe-OfYKXNeZyk%2BX70RJn87BPrgeYG74s%2BCP4Ueg%40mail.gmail.com .

Re: [MW:35033] welder qualification

Dear Saleem, As per the AWS D1.1/D1.1M:2020 Structural Welding Code – Steel, the qualification range for a welder who qualifies on a 6" diameter pipe with a wall thickness of 10.97 mm using the specified electrodes (E6010 for root and hot pass, and E7018 for the fill and cap passes) would be as follows: Diameter Qualification Range When a welder qualifies on a pipe with a diameter of 6 inches, they are qualified to weld pipe diameters ranging from 2-7/8 inches (73 mm) and larger. Thickness Qualification Range If the test coupon has a thickness of 10.97 mm (approximately 7/16 inches), the welder would be qualified to weld material thicknesses ranging from 3/16 inches (5 mm) to 2 times the thickness of the test coupon. This results in a qualification range of 3/16 inches to 21.94 mm (approximately 7/8 inches). Summary Diameter Range: 2-7/8 inches (73 mm) and larger. Thickness Range: 3/16 inches (5 mm) to 7/8 inches (21.94 mm). These ranges are determined based on the requirements ...

Re: [MW:35031] welder qualification

6inch means 2.75inch to unlimited and thickness 2t On Wed, 29 May 2024, 11:00 Manikandan J, < mechmani22@gmail.com > wrote: Dear Saleem, Please refer Table 10.9 of AWS D1.1 2020 Edition  Regards, Manikandan. Abudhabi On Wed, May 29, 2024, 8:44 AM saleem manhappulath < saleemm9526@gmail.com > wrote: Dear All i am going to qualifying welder on pipe as per AWS D1.1 My question is if i qualify on 6" X 10.97, electrode e 6010 root+hot & e 7018 rest . whats is the qualification range for dia and thickness  Thanks & Best Regards Saleem manhappulath Mob:+966533595849 WhatsApp:+919526445936 -- 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 . To view this discussion on the ...

Re: [MW:35030] welder qualification

Dear Saleem, Please refer Table 10.9 of AWS D1.1 2020 Edition  Regards, Manikandan. Abudhabi On Wed, May 29, 2024, 8:44 AM saleem manhappulath < saleemm9526@gmail.com > wrote: Dear All i am going to qualifying welder on pipe as per AWS D1.1 My question is if i qualify on 6" X 10.97, electrode e 6010 root+hot & e 7018 rest . whats is the qualification range for dia and thickness  Thanks & Best Regards Saleem manhappulath Mob:+966533595849 WhatsApp:+919526445936 -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAKH3OmtsQGJggFHLALaMyUJL%3DGzX2a3_zysrqKOz4n%2BvuFRs5A%40mail.gmail...

[MW:35028] welder qualification

Dear All i am going to qualifying welder on pipe as per AWS D1.1 My question is if i qualify on 6" X 10.97, electrode e 6010 root+hot & e 7018 rest . whats is the qualification range for dia and thickness  Thanks & Best Regards Saleem manhappulath Mob:+966533595849 WhatsApp:+919526445936 -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/CAKH3OmtsQGJggFHLALaMyUJL%3DGzX2a3_zysrqKOz4n%2BvuFRs5A%40mail.gmail.com .

Re: [MW:35018] thickness of WELDOLETS

Hi, I have  a WPS for 6Mo with BM range 12.04 mm wall thickness max. Now i have a situation to weld a 2" weldolet on a 6" run pipe. Now weldolet groove thickness is measured to be 13.9 mm on the hub side. However the theoretical thickness is 11.905 mm. Can I weld this using the same WPS?? On Wednesday 9 February, 2011 at 8:51:31 pm UTC+4 manish kulkarni wrote: Dear   The major problem with weldolets ia in procurement stage. The weld groove details, thk. are governed based on pressure rating of system.Many times high thk. weldolets are ordered even if not required as per design.MSS SP documents gives guidelines for weldolet dimensions and most of weldolet manufacturers pprepares weldlets with those details.   Correct way is to check required weld thk. at neck for proper weld thk. required.   Regards,   Manish Kulkarni  --- On Wed, 9/2/11, manpreet < manpre...@rediffmail.com > wrote: From: manpreet < manpre...@rediffmail.com > Subject: Re: [MW:979...

Re: [MW:35019] thickness of WELDOLETS

Please check if the attached is useful in calculating the weld thickness. Thanks & Regards J.Gerald Jayakumar 0091-8838619635 On Monday, 20 May, 2024 at 05:25:43 pm IST, vvp....@gmail.com <vvp.varun@gmail.com> wrote: Hi, I have  a WPS for 6Mo with BM range 12.04 mm wall thickness max. Now i have a situation to weld a 2" weldolet on a 6" run pipe. Now weldolet groove thickness is measured to be 13.9 mm on the hub side. However the theoretical thickness is 11.905 mm. Can I weld this using the same WPS?? On Wednesday 9 February, 2011 at 8:51:31 pm UTC+4 manish kulkarni wrote: Dear   The major problem with weldolets ia in procurement stage. The weld groove details, thk. are governed based on pressure rating of system.Many times high thk. weldole...

[MW:35020] Re: Use of Low alloy steels at high temps

this is not fully answer to your very elaborative question, but in short, 1. Low-alloy steels contain alloy element Cr, Mo, V, Ni 2. Low-alloy steels has a balanced compositions  of above alloy element to resist  475C embrittlement, HTHA, Graphitization.  On Monday, May 20, 2024 at 8:41:07 AM UTC+3 Talha Aamir wrote: Hi fellows, I wanted to know why low alloys are used in high temperature service and how they resist damage mechanisms like 475C embrittlement, HTHA, Graphitization. I guidance regarding reasons behind their selection other than cost savings. Thanks. -- 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 . To view this discussion on the web visit https://groups.google.co...

[MW:35021] Re: Sour Services & Non-Sour Services

its depend on % of H2S,  0.05psi is limit as per nace0175 On Sunday, May 19, 2024 at 8:03:56 PM UTC+3 RITHVIK Suresh wrote: Dear Experts, Could you please explain me the exact definition for Sour service & Non Sour Services. On what basis it is being classified. -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/4e941163-6b34-407b-97b6-b9a740916046n%40googlegroups.com .

[MW:35022] I want to know the RT 10% acceptance criteria.

Dear Sir, RT If one fails in 10% then there is a Trecer of two. And second time fails then check the full lot. -- 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 . To view this discussion on the web visit https://groups.google.com/d/msgid/materials-welding/2F7D605A-7708-48A1-9659-5C93BD77DF80%40binquraya.com .

Re: [MW:35023] I want to know the RT 10% acceptance criteria.

Dear Yasoob, The statement appears to relate to a quality control or inspection procedure. Here's a more precise interpretation of the process: First Test: If one item fails out of a sample with a 10% failure rate, a secondary check (referred to as "Trecer" which might be a typo or specific jargon, possibly meant to be "Tracer") is performed with two additional items. Second Test: If either of the two additional items also fails, it indicates a problem, and the entire batch (or "full lot") must be inspected. Here's a refined version of the process: Initial Inspection: If 10% of the items in the sample fail the initial inspection, perform a secondary inspection with two additional items. Secondary Inspection: If one or both of the two additional items fail this inspection, conduct a full inspection of the entire lot. This process ensures that if an initial small sample indicates a potential quality issue, further scrutiny is applied to confirm the p...

Re: [MW:35025] Use of Low alloy steels at high temps

475 may not happen in low alloy steel. Sigma phase formation will happen when --if %Cr-16%C/%Ni,     Less than 1.7, No sigma phase,  if it is more than 1.7 , Sigma phase 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 Mon, May 20, 2024 at 11:10 AM Talha Aamir < aamirtalha01@gmail.com > wrote: Hi fellows, I wanted to know why low alloys are used in high temperature service and how they resist damage mechanisms like 475C embrittlement, HTHA, Graphitization. I guidance regarding reasons behind their selection other than cost savings. Thanks. -- 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 re...