If I have a WPS for piping works, P1 to P1 with combination of GTAW/SMAW process, qualified thickness range of base metal is 5.0 mm ~ 19.0 mm, and the deposited weld metal thickness range for groove is 8.00 mm for GTAW and 11mm for SMAW. Is it applicable to use this WPS in welding shell plate of tank with thickness 15mm (P1 material) using SMAW process only?