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Full Description

BS EN ISO 5817:2007 provides quality levels of imperfections in fusion-welded joints (except for beam welding) in all types of steel, nickel, titanium and their alloys. It applies to material thickness above 0,5 mm. It covers fully penetrated butt welds and all fillet welds. The priciples of this International Standard may also be applied to partial-penetration butt welds.

Quality levels for beam welded joints in steel are presented in ISO 13919-1.

Three quality levels are given in order to permit application to a wide range of welded fabrication. They are designated by symbols B, C and D. Quality level B corresponds to the highest requirement on the finished weld.

The quality levels refer to production quality and not to the fitness-for-purpose (see 3.2) of the product manufactured.

BS EN ISO 5817:2007 applies to:

- unalloyed and alloy steels;

- nickel and nickel alloys;

- titanium and titanium alloys;

- manual, mechanized and automatic welding;

- all welding positions;

- all types of welds, e.g. butt welds, fillet welds and branch connections;

- 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 electrodes;

- 15 plasma arc welding;

- 31 oxy-fuel gas welding (for steel only).

Metallurgical aspects, e.g. grain size, hardness, are not covered by this International Standard.



Cross References:
ISO 2553
ISO 4063
ISO 6520-1:1998
ISO 13919-1
 

Document History

  1. BS EN ISO 5817:2023


    Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections

    • Most Recent
  2. BS EN ISO 5817:2014


    Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections

    • Historical Version
  3. BS 12/30250731 DC


    BS ISO 5817. Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections

    • Historical Version
  4. BS EN ISO 5817:2007

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    Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections

    • Historical Version
  5. BS EN ISO 5817:2003


    Welding. Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded). Quality levels for imperfections

    • Historical Version
  6. BS EN 25817:1992


    Arc-welded joints in steel. Guidance on quality levels for imperfections

    • Historical Version