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WELDER QLFN. - ASME SEC.IX
Weld Thickness in Qualification Test
[t in inch (mm)]
Less than 1/2 (13)
1/2 (13) and over
GROOVE
Maximum Qualified Weld Thickness
[inch (mm)]
2t
Unlimited
OVERLAY
Qualification Test Thickness
[T in inch (mm)]
Thickness Qualified
[inch (mm)]
Upto 1 (25) T to unlimited
over 1 (25) 1 (25) to unlimited](https://image.slidesharecdn.com/welderqualification-130506031100-phpapp02/85/Welder-qualification-9-320.jpg)
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PERFORMANCE QUALIFICATION- POSITION AND DIAMETER
LIMITATIONS
NOTE: (1) Pipe 2 OD and over.7/8
1G
2G
3G
4G
3G and 4G
2G,3G,and 4G
1G
2G
5G
6G
2G and 5G
Plate and
Pipe
Over 24 in.O.D.
Pipe
<= 24 in. O.D.
Plate and Pipe
Groove Fillet
Position and Type Weld Qualified
Weld Position
Pipe-Groove
ALL
ALL
F
ALL
ALL
ALL
F,H
F
F,H
F,H,V
F,H,O
ALL
F,V,O
F
F,H
ALL
F
F,H
F [ Note (1) ]
F,H [ Note (1) ]
F,V,O
ALL ALL
F [ Note (1) ]
F [ Note (1) ]
F [ Note (1) ]
F,H [ Note (1) ]
F,O
F,V,O
ALL
F
F,H
F,V
Qualification Test
Plate- Groove](https://image.slidesharecdn.com/welderqualification-130506031100-phpapp02/85/Welder-qualification-12-320.jpg)
Welder qualification
- 1.
- 2. 2 WELDER QLFN. -ASME SEC.IX ESSENTIAL VARIABLES • Ø WELDING PROCESS • Ø WELDING TYPE • Ø BASE METAL (P No.) • Ø FILLER METAL No. (F No.) • Ø WELD METAL THK. & DIAMETER LIMIT • - BACKING • + POSITIONS • Ø UPHILL / DOWNHILL • “ – Inert backing, Ø Transfer mode, Ø polarity”
- 3. 3 WELDING PROCESS • WELDERS: - SMAW - GTAW - FCAW / GMAW • WELDING OPERATORS : - SAW WELDER QLFN. - ASME SEC.IX
- 4. 4 WELDER QLFN. -ASME SEC.IX WELDING TYPE • MANUAL / SEMI-AUTOMATIC - Welders • MACHINE- welding operators • AUTOMATIC- welding operators
- 5. 5 WELDER QLFN. -ASME SEC.IX P No. P1 P3,4,5 P6,7 P8 P9 P10,11 P2X P3X P4X P5X P6X Type of Material Carbon Steel Alloy Steel Ferritic and Martensitic Stainless Steel Austenitic Stainless Steel Nickel Steel (less than 4.5% Ni) Quenched and Tempered Steel Aluminium and Alloys Copper and Alloys (Cupronickel) Nickel and Nickel Base Alloys Titanium and Titanium Base Alloys Zirconium and Zirconium Base Alloys
- 6. 6 WELDER QLFN. -ASME SEC.IX Base Metals for Welder Qualification P No 1 through P No. 11 and P No. 34 or P No. 4X P No. 21 through P No. 25 P No. 5X or P No. 6X Qualified Production Base Metals P No 1 through P No. 11 , P No. 34, P No. 4X and unassigned metals of similar chemical composition P No. 21 through P No. 25 P No. 5X and P No. 6X
- 7. 7 F- NUMBERS F3 -CS - E XX13 ( E6013) F4 - LOW H2 TYPE CS / LAS - E XX18-XX (E7018, E 8018-B2) F5 - AUSTENITIC SS - E XXX-15/16/17 (E 309-16, 308- 15) F6 - GTAW/SAW/FCAW CS/LAS - ER70S2/S3/E71T-1/ ER308/E308LT-1 F3X-Cu & Cu BASE ALLOYS - ERNiCu7/ ENiCu7 F4X-Ni & Ni BASE ALLOYS - ENiCrFe3/ERNiCr3 F5X-Ti & Ti BASE ALLOYS - ERTi-1 F7X-HARD FACING CONS. -STELLITE-1/6
- 8. 8 WELDER QLFN. -ASME SEC.IX Qualified with F No 4 F No 5 Any F No 6 Any F No 21 through F No 25 Any F No 31, F No 32, F No 33, F No 35, F No 36 or F No 37 F No 34 or any F No 41 throughF No 45 any F No 51 through F No 54 Any F No 61 Any F No 71 through F No 72 Qualified for F No 1, 2, 3, 4 F No 5 All F No 6 All F No 21 through 25 Only the same F Number as was used during the qualification test F No 34 and all F No 41 through F No 45 All F No 51 through F No 54 All F No 61 Only the same F Number as was used during the qualification test Alternate F No for Welder Performance Qualification
- 9. 9 WELDER QLFN. -ASME SEC.IX Weld Thickness in Qualification Test [t in inch (mm)] Less than 1/2 (13) 1/2 (13) and over GROOVE Maximum Qualified Weld Thickness [inch (mm)] 2t Unlimited OVERLAY Qualification Test Thickness [T in inch (mm)] Thickness Qualified [inch (mm)] Upto 1 (25) T to unlimited over 1 (25) 1 (25) to unlimited
- 10. 10 WELDER QLFN. -ASME SEC.IX GROOVE WELDS - LIMITATIONS ON PIPE / TUBE DIAMETERS OD inch (mm) NB inch Minimum Maximum Less than 1 (25) Less than 3/4 Size Welded Unlimited 1 to 2 7/8 (25 mm to 73mm) 3/4 to 2(1/2) 1 (25) Unlimited Over 2 7/8 (73 mm) 2(1/2) 2 7/8 (73) Unlimited
- 11. 11 - SINGLE SIDEDWELD - WELD WITHOUT BACKING/ FIBRE TAPE - DOUBLE SIDED WELD - WELD WITH CHIP BACK/ BACKING BACKING WELDER QLFN. - ASME SEC.IX QUALIFICATION WITH QUALIFIED FOR SINGLE SIDED SINGLE / DOUBLE SIDED DOUBLE SIDED DOUBLE SIDED
- 12. 12 PERFORMANCE QUALIFICATION- POSITIONAND DIAMETER LIMITATIONS NOTE: (1) Pipe 2 OD and over.7/8 1G 2G 3G 4G 3G and 4G 2G,3G,and 4G 1G 2G 5G 6G 2G and 5G Plate and Pipe Over 24 in.O.D. Pipe <= 24 in. O.D. Plate and Pipe Groove Fillet Position and Type Weld Qualified Weld Position Pipe-Groove ALL ALL F ALL ALL ALL F,H F F,H F,H,V F,H,O ALL F,V,O F F,H ALL F F,H F [ Note (1) ] F,H [ Note (1) ] F,V,O ALL ALL F [ Note (1) ] F [ Note (1) ] F [ Note (1) ] F,H [ Note (1) ] F,O F,V,O ALL F F,H F,V Qualification Test Plate- Groove
- 15. 15 Vertical Progression WELDER QLFN.- ASME SEC.IX Qualified with Qualified for Uphill Uphill only Downhill Downhill only Inert Backing - GMAW/FCAW , GTAW Qualified with Qualified for With Backing With backing only Without backing With / without backing
- 16. Welding atest coupon (150 mm length of weld) - Passing either visual & mechanical test or - Radiographic examination ( not applicable for GMAW welding with short circuiting transfer) - Failure in 1st attempt requires two test coupons for retest 1st Production weld - Radiographic examination ( not applicable for GMAW welding with short circuiting transfer) - Failure in 1st production joint will lead to radiographic examination of the complete joint & repairing it. - retest will require two consecutive production joint welded.
- 17.