Hello,
If a welder takes a qualification test and passes for company A finishes the job and does not come back to work again for company A for 18 months. Does he need to re-qualify for company A? If so where does it say so in the code?
Thank you for your help
My question to the experts is this- When preparing a prequalified wps for FCAW-G using E71T-9/0.045" wire and 75/25 shielding gas is it allowable for example to list amperage as 150 - 180 +/- 10% and voltage as 22.0 - 28.0 +/- 15% and travel speed as 4.0 - 10.0 ipm +/- 25%, provided these values...
We need to develop a wps to weld A333 grade 6 to 4130 to ASME XI. Could you help with recommendations for filler metal GTAW root and hot pass and SMAW fill/cap and pre heat. i don't see anything in the welding spec's that calls out PWHT? The material size is 4 inch sch 160.
Thanks in advance.
When interpreting radiographs to API 1104 20th edition para. 9.3.9 calls out porosity, figures 19 & 20 use the term gas pockets. Should the reader sheet/interpretation sheet indicate porosity or gas pocket for an individual pore, seams trivial to me but we are getting flack from QA for using gas...
We need to develop a welding procedure for welding L-80 Type 1 casing to cone shaped for lack of a better term "end caps" of 4130 material. the pipe and cones are 13.375" x 0.375". my greatest concern is the PWHT that would be required after welding. design temperature is -50F to +250F. design...
Hello-
There is push to switch from using cellulose (E8010-P1) downhill electrodes for pipe welding on the North Slope of Alaska by one of the owner companies to using low hydrogen electrodes. I understand that Lincoln has what they call a downhill low hydrogen rod LH-D that they claim can be...
Hello all,
We have some P5B pipe 6" sch 40 material that needs to be PWHT to ASME VIII Div. 1. My question is there a requirement to do hardness testing on the material after PWHT?
Thanks
When a pipe pile is welded to a pile cap with a CJP weld with backing, is this considered a Tubular Connection? If so do the welders performing these welds need to be qualified on pipe if the pile pipe is less than 24"OD?
Thanks
Hello,
I have a question concerning cvn testing to AWS D1.5. When calculating the average ft/lb for the 5 weld metal cvn samples are the high/low values excluded or are all five specimens averaged?
Thank you.
My question is is it allowable to test two welders on one coupon, one would weld one side and one would weld the other side of the test coupon, if the test assembly is inclined 45 degrees to qualify all positions for each welder? The test would be on 18"OD x 0.500"WT X65 line pipe radiography...
Can a welder that has qualified on 8 5/8"OD x 0.500" pipe SVG 6G position using E8010-P1 for bead and hot pass and
E8018-C3 fill and cap be used to weld A572Gr50 1/2" plate SVG with backing using only E7018-1 in the 3G position?
Thanks
API 1104 20th edition requires face and root bends for pipe over 12 3/4"OD, 0.500"WT and under side bends for over 0.500". We have pipe that is designated on the MTR as 16"OD x 0.500" X65 we used for testing, when measuring the tensile samples we noticed the actual wall thickness is slightly...
If the wps used for production welding requires PWHT is it required to perform PWHT on welder qualifications also? Is mechanical testing of performance tests per ASME IX required for section K?
Is it required by SNT-TC-1A, 2006 edition that the actual percentages for the general, specific, practical exams and composite score be listed on the certification document. I have always just indicated PASS. I seem to remember an article in Materials Evaluation stating that they do not. Is...
My question pertains to cvn testing of a 5G position pqr weld. is it required to take cvn test specimens from each quarter of the test weld i.e. one set of wm, FL +1mm & FL +5mm from the top quadrant, side and bottom quadrant? Our client is insisting that this needs to be done to qualify the wps...
I have a question concerning item number 7, undercut in table 6.1 for statically loaded nontubular connections. I am not clear on the maximum depth of undercut for item (A). It looks like 1/32" for material less than 1" thick but then it states 1/16" is allowed up to 2" in 12". Could anyone...
My question is does AWS D1.1 allow welding of PQR coupons to be outsourced, for example to a test facility, or does the welder have to be an employee of the contractor qualifying the procedures?
If a welder takes a plate-groove test in the 3G & 4G positions would he also be qualfied to weld pipe or tubing? Table 3.7 indicates that pipe positions flat for groove and flat & horizontal for fillet are qualifed but table 3.8 has no reference to the diameter limitations.
If a welder takes a plate-groove test in the 3G & 4G positions would he also be qualfied to weld pipe or tubing? Table 3.7 indicates that pipe positions flat for groove and flat & horizontal for fillet are qualifed but table 3.8 has no reference to the diameter limitations.
I need to etch API 5L X65 pipe that is lined with Inconell Clad 825 that has been GTAW/FCAW welded with ERNiCrMo3 filler material for Vickers Hardness and CVN testing of the weld metal and fusion line. Any suggestions?
Thanks.
