What is the WPS / PQR limitations for various thickness, positions

Question

Accepted Answer

WPS/PQR limitations vary based on thickness and position of the material being welded.

WPS/PQR limitations are determined by the welding code being followed.
Thickness limitations are based on the code and the welding process being used.
Position limitations are also determined by the code and welding process.
For example, in ASME Section IX, the thickness limitations for SMAW welding in the 1G position are different than in the 6G position.
Welding procedures must be qualified through testing to ensure they meet the code requirements for the specific thickness and position being welded.

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