Indian Engineer · WPS Helper 2026
Welding Procedure Validation & Inspection Audit Report
Cross-code engine: ASME IX · AWS D1.1 · API 1104 · BS EN ISO 15614 · IBR
IEW-AUD-0002-20261022
Issued: 22 Oct 2026
QA/QC Controlled Document
| WPS Number / Rev | WPS-IEW-2026-102 · Rev. 1 | Governing Code | ISO 15614 |
| Title | GMAW spray-transfer groove weld for jacket structure (impacts −20°C) | ||
| Fabricator | L&T Heavy Engineering Ltd., Hazira | Domain | Structural Member |
| Prepared By | Er. Meera N. Deshmukh (Sr. QA) | Registry Status | VALIDATED |
1 · Procedure Variables (QW-400 mapping)
| Variable | Declared Value | Variable Class |
|---|---|---|
| Welding process | GMAW (spray transfer) | Essential |
| Joint type / design | Fillet (Tee/Lap) — Tee joint, a = 6–10 mm fillets both sides, partial penetration groove | Non-Essential |
| Base metal | EN 10025-2 S355J2 / IS 2062 E350BR | Essential |
| P-Number / Group | P-No. 1 Gr.1 | Essential |
| Qualified thickness range | 16 – 25 mm | Essential |
| PQR coupon thickness | 25 mm | Essential |
| Diameter range | All | Essential |
| Filler spec / class | EN ISO 14341-A / AWS A5.18 / ER70S-6 (G3Si1) | Essential |
| F-Number / A-Number | F-No. 6 / A-No. 1 | Essential |
| Preheat minimum | 60 °C | Essential |
| Interpass maximum | 180 °C | Essential |
| PWHT | Not required | Essential |
| Current / polarity | DCEP | Essential |
| Amperage | 190 – 280 A | Non-Essential |
| Voltage | 24 – 30 V | Non-Essential |
| Travel speed | 300 – 480 mm/min | Non-Essential |
| Heat input ceiling | 2 kJ/mm | Suppl. Essential |
| Shielding gas / flow | Ar + 18% CO2 (M21, EN ISO 14175) / 18 L/min | Essential |
| Backing gas | — | Suppl. Essential |
| Position | PF (3G-up) | Non-Essential |
| Notch toughness regime | Specified (CVN controls active) | Supplementary |
| Supporting PQR | WPQR-2026-102 | Essential |
2 · Automated Compliance Verdict
PASS
Compliant
Engine run of 06 Feb 2026, 09:30 pm by m.deshmukh@lntecc.com evaluated 30 cross-code rules against ISO 15614 with clause-level evidence for every finding.
Passed: 30 · Warnings: 0 · Failures: 0 · Compliance score: 100 / 100
3 · Clause-Level Findings
| # | Variable / Rule | Class | Clause Ref. | Result | Remarks |
|---|---|---|---|---|---|
| 1 | Supporting PQR referenced | Essential | §7 / WPQR | PASS | Qualified by PQR WPQR-2026-102. Traceability established. |
| 2 | Base metal P-Number assigned | Essential | §8.3.1 | PASS | Base metal group P-No. 1 Gr.1 — EN 10025-2 S355J2 / IS 2062 E350BR. |
| 3 | Dissimilar-metal weld compatibility | Essential | §8.3.1 | PASS | Joint is between identical P-Numbers — no dissimilar-metal restrictions apply. |
| 4 | Thickness qualification range (coupon) | Essential | §8.3.2 / Table 3 | PASS | Range 16–25 mm within qualified 16–25 mm for 25 mm test coupon. |
| 5 | Thickness range sanity | Non-Essential | Table 3 | PASS | Commercial range 16–25 mm is within conventional procedure limits. |
| 6 | Small-bore thin-wall root control | Non-Essential | §8.4.5 | PASS | Small-bore root check applicable to piping only. |
| 7 | Minimum preheat temperature | Essential | §8.4.4 | PASS | Preheat ≥ 60°C satisfies the 10°C minimum for P-No. 1 base metal. |
| 8 | Interpass temperature ceiling | Essential | §8.4.3 | PASS | Interpass 180°C within 250°C ceiling (toughness-restricted). |
| 9 | Thermal window logic | Non-Essential | §8.4 | PASS | Thermal window 60–180°C is internally coherent. |
| 10 | Mandatory PWHT by thickness/code | Essential | §8.5.1 | PASS | PWHT not invoked — permitted for this material/thickness/code combination. |
| 11 | PWHT cycle parameters | Essential | §8.5.2 | PASS | PWHT not required — cycle parameters not applicable. |
| 12 | PWHT soak window & hold adequacy | Suppl. Essential | §8.5.3 | PASS | PWHT not required — soak band check not applicable. |
| 13 | F-Number consistent with process | Essential | §8.3.3 | PASS | F-No. 6 (ER70S-6 (G3Si1)) is consistent with GMAW. |
| 14 | Weld-metal A-Number compatibility | Essential | §8.3.3 | PASS | A-No. 1 weld deposit is chemically matched to P-No. 1. |
| 15 | Shielding gas / medium per process | Essential | §8.3.5 / EN ISO 14175 | PASS | Shielding medium “Ar + 18% CO2 (M21, EN ISO 14175)” acceptable for GMAW. |
| 16 | Root backing gas protection | Suppl. Essential | §8.3.5 | PASS | GMAW — backing gas not driven by process. |
| 17 | Shielding gas flow rate | Non-Essential | §8.3.5 | PASS | Flow 18 L/min within the 10–30 L/min band for GMAW. |
| 18 | Current type & polarity | Essential | §8.4.1 | PASS | DCEP polarity consistent with GMAW and ER70S-6 (G3Si1). |
| 19 | Amperage operating window | Non-Essential | §8.4.1 | PASS | Amperage 190–280 A inside the GMAW operating envelope. |
| 20 | Arc voltage operating window | Non-Essential | §8.4.1 | PASS | Voltage 24–30 V inside the GMAW operating envelope. |
| 21 | Travel speed control | Non-Essential | §8.4.2 | PASS | Travel speed 300–480 mm/min is plausible for GMAW. |
| 22 | Heat input ceiling (toughness) | Suppl. Essential | §8.4.2 / Table 5 | PASS | Heat input ≈ 1.68 kJ/mm within 2 kJ/mm toughness ceiling. |
| 23 | Welding position qualification | Non-Essential | §8.3.4 / EN ISO 6947 | PASS | Position PF (3G-UP) is a recognised EN ISO 6947 designation. |
| 24 | GMAW metal-transfer mode | Essential | §8.4.1 | PASS | Transfer mode “spray” recorded and code-permissible. |
| 25 | Process admissibility under code | Essential | §6 / ISO 4063 | PASS | GMAW is an admissible process under ISO 15614. |
| 26 | ISO 15614 impact-test mandate | Suppl. Essential | Table 2 & §9.3 | PASS | Notch-toughness regime declared — impacts covered as supplementary essential variables. |
| 27 | Storage-tank qualification route | Essential | §5 | PASS | Tank-specific routing not applicable. |
| 28 | IBR statutory governance | Essential | §5 | PASS | IBR statutory route not applicable to this scope. |
| 29 | Administrative data completeness | Non-Essential | §7.1 | PASS | Administrative header fields adequately populated for issue. |
| 30 | Group Number under toughness | Suppl. Essential | §8.3.1 | PASS | Group No. 1 recorded for notch-toughness control. |
4 · Traceability Excerpt
| Timestamp | Actor | Action | Details | Source IP |
|---|---|---|---|---|
| No audit events recorded for this entity. | ||||
Prepared By
Welding Engineer (IWE)
Er. Meera N. Deshmukh (Sr. QA)
Sign & Date
Reviewed By
QA/QC Manager
Sign & Date
Approved By
Client / TPI Inspector
Sign & Date