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Dear Friends Pls provide best possible clarification/definition asap Code- AWS D1.1 Year 2010 The omission, but no inclusion, of backing or backgouging 1st i prfer to break it up 1- Omission of backing or backgouging- If PQR qualified with backing ( backing weld/backing strip/metallic strip) or...

Dear Experts Onsite AC & DC current used- Root using LB52U x AC for better penetration- 1 WPS(AC) & Fill/Cap- using LB52 x DC using another WPS(DC).Weld Process-SMAW So 2 diffrernt WPS with varying AC/DC Variables used for welding this T-K-Y Joints. Based on Table 4.5 # 13- straightway it is...

Base Material - ASTM A131- EH36 x 25.4mm (Thk) x Single V Weld Process - SMAW / Weld Position - 3G-Uphill All Mechanical Tests & Impact Testing( -20 deg celcius ) passed. But Hardness Value exceeds allowable range Query:- 1) Is it mandatory( AWS D1.1 / ASME Sect IX )to conduct Hardness Test? 2)...

Dear Sir That means I can include all joint type/groove with given joint types and grooves detail in ONE WPS attached with qulaified PQR ( with/without CVN Test Results . Based on newly prepared WPS complying to essential and supplementary variables(if CVN reqd) to weld all joints with given...

Dear Sir Presently I have qualified PQR with Single V welded in 3G Position Undergone all reqd mechanical test including Impact Test at -20 deg celcius succesfully. Base Mat- ABS Grade EH36 x 25.4mm Thk. Filler Metal used - Kobelco LB52-E7016. QUERY:- Based on Table AWS D1.1-Ed 2008-4.5 # 31-...

Dear Friends AWS D1.1Ed-2008-4.1.3.2-Period of Effectiveness 1) Code clearly says tack-welder's qualification valid indefinitely for the process and positions qualified for. 2) We also use "Low Levy 3G-SMAW-max. thk qualified is 10mm" qualified welders as tack-welders only. Their qualification...

Dear Friends Applicable Codes - ASME Section IX & ASME B31.3 Weld Process - GTAW / SMAW Test Positions - 2G & 5G separately Base Material - API 5L X65Q x 30mm thk. I have to know acceptable Min. / Max. Hardness Value after PWHT. Client Spec refer NACE MR 0175 which i dont have Can shine some...

Dear Friends Possible Weld Process want to weld Tubular Tube to Flange-Butt 1) Please send Properties of B16.47 A-Series 900. Weld Process - GTAW x SMAW / or GTAW / FCAW or FCAW. Appreciate if someone advise suitable consumable. Thanks Ganesan

Dear Friends Weld Process - SMAW We have 6G welders qualified - using F4 & F5 Filler Metal groupings. Q1 - Can My F4 welder weld stainless Steel base meterial ising F5 Filler Metal? Q2- Is my Welder qualified with F5 Filler metal qualified to weld using F4 to F1 Filler Metals Appreciate...

Dear Friends I was asked to prepare WPS for Duplex Stainless Steel varies from 1" to 8" x Min Thks 5mm to 38mm. Impact Value -40 deg celcius Process - ROOT and Hot pass - GTAW / Fill & Cap-SMAW Pls guide me in preparing Proposed WPS complyimng to ASME Sect IX-QW-403.6 & QW-451 Thanks

Dear Friends Is it mandatory or option to conduct Mock-Up Test( AWS D1.1-4.12.4.1) in qualifying PQR for 6GR-T-Y-K? Thanks

Dear Friends I want guidance in qualifying PQR Applicable Code AWSD1.1. 6GR Test Position- API 5L X52 Pipe used( Group II- Impact Test Reqd.) Question - 1) Is it mandatory to do mock-up test? 2) Is there any base material limitations for preparing macro specimen. Thanks

Dear Friends Applicable Code- AWS D1.1. tEST pOSITION -6GR. 1)For full Mech. Test/Impact Energy-6GR-Mat. API 5L X52-Group II Mat used 2) For Macro - EH36-Group Material II used. In which clause as per AWSD1.1 it is allowed? Appreciate prompt answer

Dear Friends Applicable Code - AWS D.1.1- Sect 4 Part B-Table 4.8. In Module Skid Fabrication European Steel- S355JR, S275JR,A355JO used( Unlisted Material in AWS D.1.1). Is it right/appropriate to use WPS/PQR Qualified using EH36 as base material? If acceptable, pls advise ref. section of the...

Hi, Rneil, Yes mentioned in the latest ISO Drawings. Job concluded based on Rev 3 which only require to comply with ASME B31.3.But Rev. 4 calls for 20% RT(same as in earlier rev.& Done) + 5%MPI on butt welds Reinstament done and commissioning completed. That's the reason. I want to confirm if...

Dear Friends Base Material - CS & SS - Process Piping - Dia range from 2" to 6". Weld Porcess - GTAW(Root) SMAW (the rest ). Based on what I've understood above code does not call for MPI/LPT on Butt/Girth Welds. I've done RT as as required in Project approved NDT Plan. Can some one guide to...

Dear Sir You are absolutely right. It is only talk about P-Nos- 3,4,5 material eaxmination required after PWHT. I assume P1 Material does require any NDT AFTER Stress Relief. Do you agree with me? Thanks

Dear Mr.SJones Yes, Based on Para 341.3.1a- I did not carry out MPI. I want to confirm if my understanding is indeed correct. If is mentioned in any other section, pls advise me Thanks

Dear Friends Project - Conversion of Tanker Vesel into FPSO Platform Material Group 1- ASTM A106-B x 6" x 21.95thk ( Process Piping ) Weld Process - GTAW / SMAW. Applicable Code-ASME B31.3 Upon completion of PWHT/Hardness Test , RT Done- It passed. Did not do MPI. The purpose of MPI is to detect...

Dear Friends Material - ASTM A106/A3 I've been going through ASME B31.3 Chapter VI- Try to confirm extent of MPI if any required beside RT/UT for Process Piping Butt Welds. If MPI required, please advise respective section(s). I've concluded RT as per ABS Rules.ABS Rules do not require MPI...