CodeISO 5817Issued byISOFieldWeld acceptance
What it covers
- Limits for surface and internal imperfections of arc-welded joints in steel.
- Applies to butt and fillet welds over a range of thicknesses.
Key points for fabricators
- EN 1090-2 links the required quality level to the execution class (typically C for EXC2 and B for EXC3, with additional requirements).
- Inspectors record the imperfection type and the level it was judged against.
How PEB Studio supports it
Inspection steps can name ISO 5817 as the acceptance standard; a FAIL records the defect (porosity, undercut, dimensional deviation…) and its disposition, and re-inspections are kept as #2, #3…
This page is a summary for orientation. Always work from the edition of the standard named in the project specification.
See also
Where PEB Studio applies it
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Updated 01 Nov 2026