Please give with details explanation regarding my above difficulty.
Thanks and Regards
Isac
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As per the WPS attached by you it is not specifying any impact testing, hence Supplementary essential variables need not be considered.
Hence clause number 403.6 need not be considered,
As per Note 2 from Table QW451.1
Please refer Clause no 200.4 which states “ QW-451 shall be used to determine the range of base metal thickness and maximum weld metal thickness qualified for each process, filler metal, or set of variables, and those limits shall be observed. “
As per it I feel that GTAW process is individually Qualified for 1.5mm to 16mm,
Thanks and regards
B. Anil Kumar
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Grade | P-No | F-No | Filler / Electrode | Process | Thickness | ASME |
CS | P-No.1 | 6/4 | ER70S-3 / E7018 | GTAW+SMAW | 5-20mm | B31.3 |
CS | P-No.1 | 6/4 | ER70S-3 / E7018 | GTAW+SMAW | 1.5-19mm | B31.1 |
CS | P-No.1 | 6/4 | ER70S-3 / E7018 | GTAW+SMAW | 5-20mm | B31.3 |
CS | P-No.1 | 6/4 | ER70S-3 / E7018 | GTAW+SMAW | 5-30.16mm | B31.3 |
P11 | P-No.4 | 6/4 | ER80S-B2 / E8018-B2 | GTAW+SMAW | 5-13mm | B31.1 |
P11 | P-No.4 | 6/4 | ER80S-B2 / E8018-B2 | GTAW+SMAW | 5-36.52mm | B31.1 |
P22 | P-No.5 | 6/4 | ER90S-B3 / 9018-B3 | GTAW+SMAW | 5-60mm | B31.1 |
P91 | P-No.15E | 6/4 | ER90S-B9 / E9015-B9 | GTAW+SMAW | 5-60mm | B31.1 |
P11 + CS | P4+P1 | 6/4 | ER80S-B2 / E8018-B2 | GTAW+SMAW | 5-13mm | B31.1 |
P11 + CS | P4+P1 | 6/4 | ER80S-B2 / E8018-B2 | GTAW+SMAW | 5-36.52mm | B31.1 |
P22+P11 | P5A+P4 | 6/4 | ER90S-B3 / 9018-B3 | GTAW+SMAW | 5-60mm | B31.1 |
P22+ CS | P5A+P1 | 6/4 | ER90S-B3 / 9018-B3 | GTAW+SMAW | 5-60mm | B31.1 |
P91+P22 | P-No.15E+P5A | 6/4 | ER90S-B9 / 9018-B9 | GTAW+SMAW | 5-60mm | B31.1 |
''The best of you is the one who accept the fact even if any of you is on wrong side, when proofs are shown -
The universal best policy of a mankind in which heart accepts a thing oppsite to which mind does not want to''
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