Welding is the most heavily scrutinized phase of fabrication: BS en 13480 4 2002 | PDF | Freedom Of Expression Law
Documenting fabrication procedures (WPS - Welding Procedure Specification). Material traceability and identification (Clause 6.2). 2.2. Fabrication and Installation Processes
The standard mandates strict inspection procedures, including: Visual inspections. 13480-4 pdf
Proper storage, identification, and preservation of materials. Qualified cutting, forming, and welding procedures. Welding Qualified WPS, Welder Certification (EN ISO 9606). Heat Treatment Preheating and PWHT requirements to ensure joint integrity. Installation Support, alignment, and final assembly standards. Inspection Visual inspection and NDT (Radiography, UT, MPI) of welds. Conclusion
I notice you’ve mentioned — this appears to refer to ASME BPVC Section VIII, Division 2, Part 4 (formerly known as ASME 13480-4 in some references), which covers rules for pressure vessel design by rule (as opposed to analysis). Welding is the most heavily scrutinized phase of
: Requirements for cold and hot forming, including heat treatment after bending to restore material properties. Welding (Crucial) :
: The recent 2024 edition (published July 2024) supersedes the 2017 version, integrating previous amendments and adding new informative annexes on stainless-steel surface quality and dimensional tolerances for spools. Key Contents Welding Qualified WPS, Welder Certification (EN ISO 9606)
Detailed requirements for welding procedures, welder qualification, and heat treatment.
In the world of industrial infrastructure, safety isn't just a goal—it's a requirement. If you are working with metallic industrial piping in Europe, you've likely encountered EN 13480-4
: Monitor bending radii and pre-heating temperatures for welding.
: The code controls ovality limits (flattening of the cross-section) and wall-thinning ratios at the extrados (the outer radius) of the bend.