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Reference blocks shall be nodsok with thickness and side-drilled holes in accordance with Table 4. The preheat temperatures used during repair welding should be minimum 50 qC higher than the preheat used for the original weld. However, ambiguous imperfections revealed by UT shall in addition be tested by RT; d ultrasonic testing is normally not applicable for thicknesses less than 10 mm.
Reference samples for typical joints and sections may be prepared and used for acceptance of treated welds. Requirements for conformity assessment of structural components ENMetallic products — Types of inspection documents ENWeldable structural steels for fixed offshore structures — Technical delivery conditions ISOWelded, brazed and soldered joints — Symbolic representation on drawings ISONon-destructive testing — Penetrant testing — Part 1: The examination record shall include the morsok, the echo height, length, depth and type of indication.
Temporary cut outs shall have a corner radius not less than mm. The soundness of the weld shall comply with Clause 9. Size px x x x x When partial testing is defined for welds in an area, the testing shall be spread such that the most essential members and nodes are included in the inspection, and such that areas of welds most susceptible to weld defects are covered.
For welding in inspection category C, D and E, diploma as IW-International Welder fillet- plate-pipe welder within actual welding method and material may be accepted, see IIW, Minimum requirements for the education, training, examination and qualification of welding personnel. Standards Norway Strandveien noesok, P.
The increased initial testing may be accounted for in the overall extent provided the initial testing confirms consistent good workmanship. We need your help to maintenance this nrosok. Testing shall be performed in accordance with ISO and the additional requirements given below.
Annexes C, D, E and G are normative.
Please copy and paste nrsok embed script to where you want to embed Embed Script. The defect rate statistics shall be used as a tool in weld quality control.
The WPQR documentation shall include the material certificates for the base material and filler materials applied in the weld qualification test. M Structural steel fabrication Rev.
We need your help! Minimum one test coupon is required from each applied welding process. Hydrogen testing shall be according to ISO or equivalent. NOTE 2 For highly fatigue utilized structures, more severe requirements may apply, and these will be shown on the design drawings. This service is not available if you are a URL user where you do not log in with an email address. CTOD-testing of welds shall be carried out with the fatigue notch tip positioned in the coarse grained region of the heat affected zone and in the weld metal.
Scanning is in all cases to be performed from both sides of the weld and in both directions.
Arc welding of stainless steels EN Non-destructive testing of welds — Magnetic particle testing. Partial NDT shall normally be planed for on all shop drawings. CTOD testing is not required for production testing.
Monitoring Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work. Test coupons shall be welded in a manner which realistically simulates the actual production nirsok, normally as extension of the production weld, and meet the requirements for welding procedure approval tests.
N may be achieved through alternatively: The actual refracted angle for each probe measured from the reference block or as measured on the actual object being examined, shall be used when plotting indications. Arc welding ISOSpecification and qualification of welding procedures for metallic materials — Welding procedure test — Part 1: General principles ISOWelding — Determination of hydrogen indeposited weld metal arising from the use of covered electrodes for welding mild and low alloy steels ISOQuality requirements for welding of metallic materials — Part 2: The defect rates shall be recorded on a weekly basis for VT, MT, PT, UT and RT from each production area geographically split in production areas at the same yard and shall be reported together with the accumulated defect rate.
Radiographic testing is normally not applicable for thicknesses above 40 mm.
The holding time and temperature shall be as recommended by the steel manufacturer. For material thickness less or equal to 25 mm, tack length may be minimum 4 x plate thickness. Typical examples of requirements for peening of joints are given in A. Holes shall be made by machine norsom.
Standards monitoring is a free service designed for norrsok who wish to be alerted of changes to or new editions of the standards required in your work. Test laboratories shall have a quality system in compliance with ISO or equivalent.