EN 25817:1992

Arc-welded joints in steel - Guidance on quality levels for imperfections (ISO 5817:1992) EN 25817:1992

Publication date:   Jun 4, 2001

General information

99.60 Withdrawal effective   Oct 1, 2003


CEN/TC 121 Welding and allied processes

European Norm

25.160.40   Welded joints and welds



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This International Standard provides guidance on levels of imperfections in arc-welded joints in steel. Three levels are given in such a way as to permit application for a wide range of welded fabrications. The levels refer to production quality and not to the fitness-for-purpose (see 3.1) of the product manufactured. This International Standard applies to: - unalloyed and alloyed steels; - the following welding processes and their defined sub-processes in accordance with ISO 4063: 11 metal-arc welding without gas protection; 12 submerged-arc welding; 13 gas-shielded metal-arc welding; 14 gas-shielded welding with non-consumable electrode; 15 plasma arc welding; - manual, mechanized and automatic processes; - all welding positions; - butt welds, fillet welds and branch connections; - materials in the thickness range 3 mm to 63 mm. When significant deviations from the joint geometries and dimensions described in this International Standard are present in the welded product, it is necessary to evaluate to what extent the provisions of this standard can apply. Metallurgical aspects, e.g. grain size, hardness, are not covered by this International Standard.

Related legislation

Legislation related to this standard


Simple pressure vessels

Life cycle


EN 25817:1992
99.60 Withdrawal effective
Oct 1, 2003


EN ISO 5817:2003


Adopted from ISO 5817:1992 IDENTICAL