BS 4515-2:1999

Committees responsible
Foreword
1 Scope
2 Normative references
3 Definitions
4 Information to be specified and items to be approved
5 Equipment
6 Welding processes
7 Welding consumables
8 Testing, qualification and approval of welding procedures
9 Testing, qualification and approval of welders
10 Production welding
11 Inspection and testing of welds
12 Acceptance and rectification of welds
Annex A (informative) Welding procedure specification
Annex B (normative) Method for determining volume fraction
of ferrite in duplex stainless steel weldments by systematic
point count
Annex C (normative) Method for pitting corrosion testing of
duplex stainless steel weldments by the use of ferric
chloride solution
Bibliography
Figure 1 Location of repair excavations and destructive
           test specimens
Figure 2 Location of test specimens
Figure 3 Tensile test specimen
Figure 4 Charpy v-notch impact test specimens for full
           penetration welds (including full penetration
           repair welds)
Figure 5 Positioning of Charpy v-notch impact specimens for
           procedure approval or partial penetration repair
           welds
Figure 6 Position of corrosion test specimen: full penetration
           and internal repair welds
Figure C.1 General layout of test specimen showing the test
           face uppermost
Table 1 Welding procedure specification details and changes
          affecting approval
Table 2 Number of specimens for procedure qualification tests
          on butt joints
Table 3 Number of specimens for procedure qualification
          tests on repair welds
Table 4 Diameter and thickness ranges for butt joints and
          branch connections
Table 5 Acceptance criteria for welds

Defines requirements for welding solution annealed duplex austentic - ferritic stainless steel pipelines having specific minimum chromium contents in the range 21.0% to 26.0% according to BS 8010.

This British Standard specifies requirements for the welding of solution annealed duplex austenitic—ferritic stainless steel pipelines with specified minimum chromium contents in the range 21.0 % to 26.0 %, designed in accordance with BS 8010.

It is applicable to transmission pipelines for gases, liquids or slurries, both on land and offshore, of outside diameter 21.0 mm and larger, having a thickness of 3.0 mm or greater.

In addition to the definitive requirements it also requires that the items detailed in clause 4 be documented. For compliance with this standard, both the definitive requirements and the documented items have to be satisfied.