WPS-IEW-2026-108
Rev. 0NON_COMPLIANTASME IXPressure VesselDMW nozzle attachment P-1 shell to P-8 nozzle neck (filler under review)
97
score
Base Metals & Thickness — QW-403 / QW-451
- Specification
- SA-516 Gr.70 + SA-240 Type 316L
- P-Number
- P-No. 1
- Group No.
- 2
- Dissimilar side
- P-No. 8
- Qualified range
- 8 – 16 mm
- Coupon T
- 16 mm
- Diameter
- Nozzle NPS 2–8
- Toughness
- Not invoked
Filler Metals — QW-404 / QW-432 / QW-442
- Filler spec
- SFA-5.18
- Classification
- ER70S-6
- F-Number
- F-No. 6
- A-Number
- A-No. 1
- Process
- GTAW
- Transfer mode
- —
- Joint type
- J-Groove
- Position
- 6G
Thermal Cycle — QW-406 / QW-407
- Preheat min
- 95 °C
- Interpass max
- 150 °C
- PWHT
- Not required
- PWHT soak
- —
- PWHT hold
- —
- Joint design
- Set-in nozzle, J-groove + external fillet, buttered edge prep
Electrical, Technique & Shielding — QW-408 / QW-409
- Current
- DCEN
- Amperage
- 100–170 A
- Voltage
- 11–15 V
- Travel speed
- 80–130 mm/min
- Heat input cap
- 2 kJ/mm
- Shielding
- Argon 99.99% (I1)
- Flow
- 14 L/min
- Backing
- Argon 99.99%
- Supporting PQR
- PQR-DMW-2026-108
Validation Findings
latest run 24 Feb 2026 by v.patil@godrej.com
Dissimilar-metal weld compatibility
EssentialQW-403.2 / QW-403.3P-No. 1 ↔ P-No. 8: carbon/low-alloy filler (A-No. 1) not permitted on DMW to austenitic base metal; use ER309L/ENiCrFe class (A-No. 8/10).
Supporting PQR referenced
EssentialQW-200.1 / QW-200.2Qualified by PQR PQR-DMW-2026-108. Traceability established.
Base metal P-Number assigned
EssentialQW-403.1 / QW-422Base metal group P-No. 1 Gr.2 — SA-516 Gr.70 + SA-240 Type 316L.
Thickness qualification range (coupon)
EssentialQW-451.1 / QW-451.2Range 8–16 mm within qualified 1.5–32 mm for 16 mm test coupon.
Thickness range sanity
Non-EssentialQW-451Commercial range 8–16 mm is within conventional procedure limits.
Small-bore thin-wall root control
Non-EssentialQW-404.30 / QW-405Small-bore root check applicable to piping only.
Minimum preheat temperature
EssentialQW-406.1Preheat ≥ 95°C satisfies the 10°C minimum for P-No. 1 base metal.
Interpass temperature ceiling
EssentialQW-406.3Interpass 150°C within 315°C ceiling.
Thermal window logic
Non-EssentialQW-406Thermal window 95–150°C is internally coherent.
Mandatory PWHT by thickness/code
EssentialQW-407.1 / UCS-5616 mm within 32 mm exemption threshold — PWHT correctly waived with documented basis.
PWHT cycle parameters
EssentialQW-407.4 / QW-407.5PWHT not required — cycle parameters not applicable.
PWHT soak window & hold adequacy
Suppl. EssentialQW-407.5 / UCS-56 TablePWHT not required — soak band check not applicable.
F-Number consistent with process
EssentialQW-404.3 / QW-432F-No. 6 (ER70S-6) is consistent with GTAW.
Weld-metal A-Number compatibility
EssentialQW-404.5 / QW-442A-No. 1 weld deposit is chemically matched to P-No. 1.
Shielding gas / medium per process
EssentialQW-408.1Shielding medium “Argon 99.99% (I1)” acceptable for GTAW.
Root backing gas protection
Suppl. EssentialQW-408.5 / QW-408.8Root protection declared: Argon 99.99%.
Shielding gas flow rate
Non-EssentialQW-408.1Flow 14 L/min within the 8–20 L/min band for GTAW.
Current type & polarity
EssentialQW-409.1 / QW-409.4DCEN polarity consistent with GTAW and ER70S-6.
Amperage operating window
Non-EssentialQW-409.2 / QW-409.3Amperage 100–170 A inside the GTAW operating envelope.
Arc voltage operating window
Non-EssentialQW-409.4Voltage 11–15 V inside the GTAW operating envelope.
Travel speed control
Non-EssentialQW-409.9Travel speed 80–130 mm/min is plausible for GTAW.
Heat input ceiling (toughness)
Suppl. EssentialQW-409.1 (suppl. essential)Computed worst-case heat input ≈ 1.91 kJ/mm (declared ceiling 2 kJ/mm) — no toughness restriction invoked.
Welding position qualification
Non-EssentialQW-405 / QW-461.96G inclined-fixed qualification covers all pipe groove positions (QW-461.9 matrix).
GMAW metal-transfer mode
EssentialQW-409.32Transfer-mode variable applies to GMAW only (GTAW exempt).
Process admissibility under code
EssentialQW-250 seriesGTAW is an admissible process under ASME IX.
ISO 15614 impact-test mandate
Suppl. EssentialQW-403.5Impact regime not invoked for the declared thickness/application.
Storage-tank qualification route
EssentialQW-200 (via API 650 §9.2)Tank-specific routing not applicable.
IBR statutory governance
EssentialQW-201IBR statutory route not applicable to this scope.
Administrative data completeness
Non-EssentialQW-201.1Administrative header fields adequately populated for issue.
Group Number under toughness
Suppl. EssentialQW-403.5Group-No. split applies only when notch toughness is specified.
Run History
v.patil@godrej.com
24 Feb 2026, 09:30 pm
FAIL
29/0/1