EN 15614 Para 8.4.3 Joint variables

EN 15614 WPS variable

For level 1: The range of qualification for the type of welded joints is as used in the welding procedure test subject to limitations given in other clauses (e.g. thickness) and additionally:
a) full penetration butt welds qualify full and partial penetration butt welds and fillet welds in any type of joints;
b) butt joints qualify any branch connections;
c) fillet welds qualify fillet welding only;
d) welds made from one side without backing qualify welds made from both sides and welds with backing;
e) welds made with backing qualify welds made from both sides and welds made without backing;
f) welds made from both sides without gouging qualify welds made from both sides with gouging;
g) welds made from both sides with or without gouging qualify welds made from one side with backing;
h) when impact or hardness requirements apply, it is not permitted to change a multi-run deposit into a single run deposit (or single run on each side) or vice versa for a given process;
i) build-up welding. Build up is qualified by butt weld test piece.

For level 2: The range of qualification for the type of welded joints is as used in the welding procedure test subject to limitations given in other clauses (e.g. thickness) and additionally:
a) butt welds qualify full and partial penetration butt welds and fillet welds, while fillet weld tests are required where T-joints are performed by fillet welds or partial  penetration butt welds in the predominant form of welded connections in relation to the design and production welding;
b) full penetration butt welds qualify full and partial penetration butt welds and fillet welds in any type of joints;
c) butt joints in pipe qualify branch connections with an angle α ≥ 60° (see below Figure 4 for α);

EN 15614 WPS figure 4.png
d) butt welds in T-joints with full penetration qualify full and partial penetration butt welds in T-joints and fillet welds but not vice versa;
e) fillet welds qualify fillet welding only;
f) welds made from one side without backing qualify welds made from both sides and welds with backing;
g) welds made with backing qualify welds made from both sides;
h) welds made from both sides without removing the root qualify welds made from both sides with removing the root (except thermal gouging);
i) welds made from both sides with or without gouging qualify welds made from one side with backing;
j) when impact or hardness requirements apply, it is not permitted to change a multi-run deposit into a single run deposit (or single run on each side) or vice versa for a given process;
k) build-up welding. Build up is qualified by butt weld test piece;
l) buttering shall be performed by a separate test piece in combination with the butt weld.

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