In WPS document qualified material thickness range and P number range available,
Based on that you can select the WPS.
As per ASME Sec IX you can use plate WPS for pipe. But must be required same P number.
Before using WPS you have to conform all essential variables.
On Thu, 6 Nov 2025, 6:47 pm Rilley Chellah Mulenga, <rilley.mulenga@ahkgroup.com> wrote:
Good day technical experts,Can I use a WPS for S355jr thickness of 30mm plate in SMAW to qualify a pipe S355jr 6mm thick in SMAW ? your quick response is highly appreciated--
RILLEY CHELLAH MULENGA
Materials Evaluation Head of Department
E: rilley.mulenga@ahkgroup.com
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