P-No.1 & Gr-No. 1
- Material: API 5L X52N PSL2 SMLS
- Pipe size: NPS 2” Sch 80 (5.54 mm)
- Joint design: Groove, included angle 60 deg., 6G position.
- Welding process: GTAW deposit 5.54 mm, manual.
| QW-402 Joint details | GTAW |
|---|---|
| QW-402.1 Groove design | Groove and fillet weld |
| QW-402.5 Backing | None |
| QW-402.10 Root Spacing | 3.2 – 6.0 mm |
| QW-402.11 Retainers | None |
| QW-403 Base metal | |
| QW-403.5 Group Number | 1 |
| QW-403.6 T limits | 2.77 to 11.08 mm |
| QW-403.8 T Qualified | 1.5 to 11.08 mm |
| QW-403.11 P Qualified | 1 |
| QW-404 Filler metal | |
| QW-404.3 Size | 2.4 mm |
| QW-404.4 F Number | 6 |
| QW-404.5 A Number | 1 |
| QW-404.12 Spec. or Class. A/SFA. | A 5.18 ER70S-6 |
| QW-404.14 Filler | Yes |
| QW-404.22 Consumable Insert | None |
| QW-404.23 Filler metal product form | Solid |
| QW-404.30 Max. Deposit thickness (t) | 11.08 mm |
| QW-404.33 Classification | – |
| QW-404.50 Flux | None |
| QW-405 Positions | |
| QW-405.1 + Position | All |
| QW-405.3 change vertical welding | Upward |
| QW-406 Preheat | |
| QW-406.1 Decrease > 55 deg. C | Min. 10 deg. C |
| QW-406.2 Preheat maintenance | None |
| QW-406.3 Increase > 55 deg. C | Max. 250 deg. C |
| QW-407 PWHT | |
| QW-407.1 change PWHT | None |
| QW-407.2 change PWHT (T & T range) | None |
| QW-408 Gas | |
| QW-408.1 Trailing or composition | SG-A |
| QW-408.2 Single, mixture % | 100% |
| QW-408.3 Flow rate | 10-15 lpm |
| QW-408.5 Backing flow | None |
| QW-408.9 Backing or composition | None |
| QW-408.10 Shielding or trailing | None |
| QW-409 Electrical characteristics | |
| QW-409.1 Heat input | Max. 2.5 KJ |
| QW-409.3 Pulsing current | None |
| QW-409.4 Current and Polarity | DC EN |
| QW-409.8 I & E range | A: 80 – 150, V: 10-14 |
| QW-409.12: Tungsten electrode | 2.4mm, 2%thoriated |
| QW-410 Technique | |
| QW-410.1 String/weave | Both |
| QW-410.3 Orifice, nozzle or gas cup size | 4 – 7 |
| QW-410.5 Method cleaning | grinding, wire brushing |
| QW-410.6 Method back gouge | None |
| QW-410.7 Oscillation | None |
| QW-410.9 Multi to single pass/ side | Multiple |
| QW-410.10 Single to multi electrodes | Single |
| QW-410.11 Closed to out chamber | None |
| QW-410.15 Electrode spacing | None |
| QW-410.25 Manual or automatic | Manual |
| QW-410.26 Peening | None |
| QW-410.64 Use of thermal processes | None |
P-No. 8 and Gr-No. 1
Material: ASME SA312 TP316/316L ASME B36.19M SMLS
Pipe size: NPS 2” Sch 80S (5.54 mm)
Joint design: Groove, included angle 60 deg, 6G position.
Welding process: GTAW deposit 5.54 mm, manual.
| QW-402 Joint details | GTAW |
|---|---|
| QW-402.1 Groove design | Groove and fillet weld |
| QW-402.5 Backing | None |
| QW-402.10 Root Spacing | 3.2 – 6.0 mm |
| QW-402.11 Retainers | None |
| QW-403 Base metal | |
| QW-403.5 Group Number | 1 |
| QW-403.6 T limits | 2.77 to 11.08 mm |
| QW-403.8 T Qualified | 1.5 to 11.08 mm |
| QW-403.11 P Qualified | 8 |
| QW-404 Filler metal | |
| QW-404.3 Size | 2.4 mm |
| QW-404.4 F Number | 6 |
| QW-404.5 A Number | 8 |
| QW-404.12 Spec. or Class. A/SFA. | A 5.9 ER316L |
| QW-404.14 Filler | Yes |
| QW-404.22 Consumable Insert | None |
| QW-404.23 Filler metal product form | Solid |
| QW-404.30 Max. Deposit thickness (t) | 11.08 mm |
| QW-404.33 Classification | – |
| QW-404.50 Flux | None |
| QW-405 Positions | |
| QW-405.1 + Position | All |
| QW-405.3 change vertical welding | Upward |
| QW-406 Preheat | |
| QW-406.1 Decrease > 55 deg. C | Min. 10 deg. C |
| QW-406.2 Preheat maintenance | None |
| QW-406.3 Increase > 55 deg. C | Max. 150 deg. C |
| QW-407 PWHT | |
| QW-407.1 change PWHT | None |
| QW-407.2 change PWHT (T & T range) | None |
| QW-408 Gas | |
| QW-408.1 Trailing or composition | SG-A |
| QW-408.2 Single, mixture % | 100% Argon |
| QW-408.3 Flow rate | 10-15 lpm |
| QW-408.5 Backing flow | SG-A, 10 – 15 lpm |
| QW-408.9 Backing or composition | None |
| QW-408.10 Shielding or trailing | None |
| QW-409 Electrical characteristics | |
| QW-409.1 Heat input | Max. 2.5 KJ |
| QW-409.3 Pulsing current | None |
| QW-409.4 Current and Polarity | DC EN |
| QW-409.8 I & E range | A: 50 – 120, V: 10-14, TS: 60 – 100 mm/min. |
| QW-409.12: Tungsten electrode | 2.4mm, 2%thoriated |
| QW-410 Technique | |
| QW-410.1 String/weave | Both |
| QW-410.3 Orifice, nozzle or gas cup size | 4 – 7 |
| QW-410.5 Method cleaning | grinding, wire brushing |
| QW-410.6 Method back gouge | None |
| QW-410.7 Oscillation | None |
| QW-410.9 Multi to single pass/ side | Multiple |
| QW-410.10 Single to multi electrodes | Single |
| QW-410.11 Closed to out chamber | None |
| QW-410.15 Electrode spacing | None |
| QW-410.25 Manual or automatic | Manual |
| QW-410.26 Peening | None |
| QW-410.64 Use of thermal processes | None |
Super Duplex Stainless steel
Material: ASME SA790 S32750 ASME B36.19M SMLS
Pipe size: NPS 2” Sch 80S (5.54 mm)
Joint design: Groove, included angle 60 deg, 6G position.
Welding process: GTAW deposit 5.54 mm, manual.
| QW-402 Joint details | GTAW |
|---|---|
| QW-402.1 Groove design | Groove and fillet weld |
| QW-402.5 Backing | None |
| QW-402.10 Root Spacing | 3.0 – 4.0 mm |
| QW-402.11 Retainers | None |
| QW-403 Base metal | |
| QW-403.5 Group Number | 1 |
| QW-403.6 T limits | 2.77 to 11.08 mm |
| QW-403.8 T Qualified | 1.5 to 11.08 mm |
| QW-403.11 P Qualified | 10H |
| QW-404 Filler metal | |
| QW-404.3 Size | 2.4 mm |
| QW-404.4 F Number | 6 |
| QW-404.5 A Number | 8 |
| QW-404.12 Spec. or Class. A/SFA. | A 5.9 ER2594 |
| QW-404.14 Filler | Yes |
| QW-404.22 Consumable Insert | None |
| QW-404.23 Filler metal product form | Solid |
| QW-404.30 Max. Deposit thickness (t) | 11.08 mm |
| QW-404.33 Classification | – |
| QW-404.50 Flux | None |
| QW-405 Positions | |
| QW-405.1 + Position | All |
| QW-405.3 change vertical welding | Upward |
| QW-406 Preheat | |
| QW-406.1 Decrease > 55 deg. C | Min. 10 deg. C |
| QW-406.2 Preheat maintenance | None |
| QW-406.3 Increase > 55 deg. C | Max. 150 deg. C |
| QW-407 PWHT | |
| QW-407.1 change PWHT | None |
| QW-407.2 change PWHT (T & T range) | None |
| QW-408 Gas | |
| QW-408.1 Trailing or composition | SG-AN-2 |
| QW-408.2 Single, mixture % | 98% Ar + 2% N2 |
| QW-408.3 Flow rate | 10-18 lpm |
| QW-408.5 Backing flow | SG-AN-2, 15 – 18 lpm |
| QW-408.9 Backing or composition | None |
| QW-408.10 Shielding or trailing | None |
| QW-409 Electrical characteristics | |
| QW-409.1 Heat input | Max. 2.5 KJ |
| QW-409.3 Pulsing current | None |
| QW-409.4 Current and Polarity | DC EN |
| QW-409.8 I & E range | A: 60 – 80, V: 10-12, TS: 60 – 100 mm/min. |
| QW-409.12: Tungsten electrode | 2.4mm, 2%thoriated |
| QW-410 Technique | |
| QW-410.1 String/weave | Both |
| QW-410.3 Orifice, nozzle or gas cup size | 4 – 7 |
| QW-410.5 Method cleaning | grinding, wire brushing |
| QW-410.6 Method back gouge | None |
| QW-410.7 Oscillation | None |
| QW-410.9 Multi to single pass/ side | Multiple |
| QW-410.10 Single to multi electrodes | Single |
| QW-410.11 Closed to out chamber | None |
| QW-410.15 Electrode spacing | None |
| QW-410.25 Manual or automatic | Manual |
| QW-410.26 Peening | None |
| QW-410.64 Use of thermal processes | None |
Duplex Stainless Steel
Material: ASME SA790 S31803 ASME B36.19M SMLS
Pipe size: NPS 2” Sch 80S (5.54 mm)
Joint design: Groove, included angle 60 deg, 6G position.
Welding process: GTAW deposit 5.54 mm, manual.
| QW-402 Joint details | GTAW |
|---|---|
| QW-402.1 Groove design | Groove and fillet weld |
| QW-402.5 Backing | None |
| QW-402.10 Root Spacing | 3.0 – 4.0 mm |
| QW-402.11 Retainers | None |
| QW-403 Base metal | |
| QW-403.5 Group Number | 1 |
| QW-403.6 T limits | 2.77 to 11.08 mm |
| QW-403.8 T Qualified | 1.5 to 11.08 mm |
| QW-403.11 P Qualified | 10H |
| QW-404 Filler metal | |
| QW-404.3 Size | 2.4 mm |
| QW-404.4 F Number | 6 |
| QW-404.5 A Number | 8 |
| QW-404.12 Spec. or Class. A/SFA. | A 5.9 ER2209 |
| QW-404.14 Filler | Yes |
| QW-404.22 Consumable Insert | None |
| QW-404.23 Filler metal product form | Solid |
| QW-404.30 Max. Deposit thickness (t) | 11.08 mm |
| QW-404.33 Classification | – |
| QW-404.50 Flux | None |
| QW-405 Positions | |
| QW-405.1 + Position | All |
| QW-405.3 change vertical welding | Upward |
| QW-406 Preheat | |
| QW-406.1 Decrease > 55 deg. C | Min. 10 deg. C |
| QW-406.2 Preheat maintenance | None |
| QW-406.3 Increase > 55 deg. C | Max. 150 deg. C |
| QW-407 PWHT | |
| QW-407.1 change PWHT | None |
| QW-407.2 change PWHT (T & T range) | None |
| QW-408 Gas | |
| QW-408.1 Trailing or composition | SG-A |
| QW-408.2 Single, mixture % | 100% |
| QW-408.3 Flow rate | 10-18 lpm |
| QW-408.5 Backing flow | SG-A, 15 – 18 lpm |
| QW-408.9 Backing or composition | None |
| QW-408.10 Shielding or trailing | None |
| QW-409 Electrical characteristics | |
| QW-409.1 Heat input | Max. 2.5 KJ |
| QW-409.3 Pulsing current | None |
| QW-409.4 Current and Polarity | DC EN |
| QW-409.8 I & E range | A: 60 – 80, V: 10-12, TS: 60 – 100 mm/min. |
| QW-409.12: Tungsten electrode | 2.4mm, 2%thoriated |
| QW-410 Technique | |
| QW-410.1 String/weave | Both |
| QW-410.3 Orifice, nozzle or gas cup size | 4 – 7 |
| QW-410.5 Method cleaning | grinding, wire brushing |
| QW-410.6 Method back gouge | None |
| QW-410.7 Oscillation | None |
| QW-410.9 Multi to single pass/ side | Multiple |
| QW-410.10 Single to multi electrodes | Single |
| QW-410.11 Closed to out chamber | None |
| QW-410.15 Electrode spacing | None |
| QW-410.25 Manual or automatic | Manual |
| QW-410.26 Peening | None |
| QW-410.64 Use of thermal processes | None |
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